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Other Portable Consoles => Ingenic JZ47xx Devices => Retro Game 350/RG-350 => Topic started by: iball on December 12, 2019, 01:04:43 am

Title: Screen now bad
Post by: iball on December 12, 2019, 01:04:43 am
Well, so much for that.  After having my RG350 for a few weeks now I turned it on a few minutes ago and the screen started going all rainbow-effect on me.
It was working fine an hour ago when I was playing a Genesis game.  Turned it off to get something to eat, turn it on again and now the screen is bad.  On firmware 1.5.1.  I'll try reflashing the firmware again but that's probably not going to fix it, there's probably a cold solder joint somewhere on the board that finally gave up the ghost.
My GCW-Zero from 2013 is still fine after hundreds of hours of play but this "new and improved GCW-Zero" turns out to be a hunk of garbage after a few weeks.
Oh well, it was good while it lasted I guess.  Once my PocketGo pre-order comes in, I'm done with Chinesium handhelds.

UPDATE:  Put original micro-SD card with the shipped firmware in it and the screen is still bad.  Into the drawer of broken crap it goes.
Title: Re: Screen now bad
Post by: gameblabla on December 12, 2019, 04:38:51 am
It could be a bad ribbon cable or interference from the motherboard.
The only handled were i had this particular issue was the RS-90 and even then it wasn't as bad.

If you don't mind taking it apart, replacing the ribbon cable is worth trying ?
Title: Re: Screen now bad
Post by: iball on December 12, 2019, 05:47:36 am
It could be a bad ribbon cable or interference from the motherboard.
The only handled were i had this particular issue was the RS-90 and even then it wasn't as bad.

If you don't mind taking it apart, replacing the ribbon cable is worth trying ?
I've emailed them about it, waiting to hear back. 
If they don't reply or refuse to replace it, then I'll just never buy anything from them ever again.
I'm not tearing it apart just yet.  Looks like it's happened to at least two other users as well with this same device, so it could just be ticking time bomb in *all* RG350 units.  But I know it's not the ribbon cable.
Title: Re: Screen now bad
Post by: elea on December 12, 2019, 10:11:02 am
AFAIK on discord there is only one user that reported their screen going bad (ReverendS3rvo), not two.

One of the users that initially had the same problem but said that it went away and didn't return. A dev also mentioned this happening also to them with their GCW Zero way back when.

At least 10k RG350's have shipped so far based on a rough estimate of sales numbers from Aliexpress and other resellers. 2 or even 3 reports seems like an insignificant blip so far. 

In any case, if you bought it from Anbernic it's highly likely that they'll replace it for free.
Title: Re: Screen now bad
Post by: iball on December 12, 2019, 12:55:26 pm
They responded with the usual "reflash the firmware" and I replied that I've already tried that to no avail.
Title: Re: Screen now bad
Post by: elea on December 12, 2019, 01:51:12 pm
Yeah, definitely demand a refund.
Title: Re: Screen now bad
Post by: pcercuei on December 12, 2019, 03:31:47 pm
Call it a hunch, but I think the problem is software.
Title: Re: Screen now bad
Post by: SeongGino on December 12, 2019, 04:19:03 pm
Have been using many versions of the software, and hasn't happened to me.

Can we not make this another needlessly combative discussion? Haven't we had enough?
Title: Re: Screen now bad
Post by: RxBrad on December 12, 2019, 04:25:02 pm
I've had a similar screen glitch.  But in my case, the glitch only affected a block in the the lower-left 60-70% of the screen and then abruptly stopped.  When it appeared, it slowly faded onto the screen over a few seconds, starting from the lower edge and working its way up. (It happened twice; once on 1.5.1FW while connecting to PC over USB, and once while flashing the 1.7BASE FW)

The last time this happened, the glitching actually burned into the screen temporarily (it's gone now).  You can see where it stopped between the Hotkeys & Saved States menu items in this photo.

(https://i.imgur.com/X09asE4.jpg)
Title: Re: Screen now bad
Post by: pcercuei on December 12, 2019, 04:27:32 pm
Can we not make this another needlessly combative discussion? Haven't we had enough?

WTF? This is not a discussion, I'm just saying that I think the problem is not hardware, but rather how the software configures the LCD.
Title: Re: Screen now bad
Post by: SeongGino on December 12, 2019, 04:32:24 pm
WTF? This is not a discussion, I'm just saying that I think the problem is not hardware, but rather how the software configures the LCD.

And I'm saying, why would the software just suddenly decide to break screens when it doesn't for a greater majority of users?
Title: Re: Screen now bad
Post by: RxBrad on December 12, 2019, 04:33:47 pm
@pcercuei Not sure if you read my report of a similar problem just above your post.  The way it weirdly faded into place sure seemed hardware/voltage-related at the time.  Although I supposed that could be something configured in the software, since, in both cases, it went away when the currently-active program exited.
Title: Re: Screen now bad
Post by: pcercuei on December 12, 2019, 05:08:33 pm
And I'm saying, why would the software just suddenly decide to break screens when it doesn't for a greater majority of users?
If you had a GCW Zero, you may remember the "white screen of death". It was mostly working, but still break for a short number of people.

This was a software bug.

What I think happens here, is that the LCD timings (https://github.com/tonyjih/RG350_linux/blob/master/drivers/video/jz4770_fb.c#L87) are bogus, if you compare to the ranges documented in the datasheet. The hsync is too long, and the vsync is too short.
Title: Re: Screen now bad
Post by: pcercuei on December 12, 2019, 05:11:44 pm
@pcercuei Not sure if you read my report of a similar problem just above your post.  The way it weirdly faded into place sure seemed hardware/voltage-related at the time.  Although I supposed that could be something configured in the software, since, in both cases, it went away when the currently-active program exited.
Yes, I see the same behaviour,  but only when I run custom kernels, I never saw it happen with the stock firmware (doesn't mean it won't).
Title: Re: Screen now bad
Post by: RxBrad on December 12, 2019, 05:43:53 pm
Seems like a convincing explanation to me.  Thanks!

I wonder if @tonyjih is aware of the issues some are having and this possible link...
Title: Re: Screen now bad
Post by: iball on December 12, 2019, 07:06:09 pm
@pcercuei Not sure if you read my report of a similar problem just above your post.  The way it weirdly faded into place sure seemed hardware/voltage-related at the time.  Although I supposed that could be something configured in the software, since, in both cases, it went away when the currently-active program exited.
Yes, I see the same behaviour,  but only when I run custom kernels, I never saw it happen with the stock firmware (doesn't mean it won't).

I actually thought that too which is why i put the card with the firmware it originally shipped with back in and booted it up but it was still ghosted/bleeding like in the picture.
Title: Re: Screen now bad
Post by: eltehero on December 12, 2019, 07:21:15 pm
It might be worth bringing up the issue at discord and see if there are possible solutions. There's a good and friendly RG350 community and lot of help and useful info is available there
Title: Re: Screen now bad
Post by: pcercuei on December 12, 2019, 07:28:03 pm
I actually thought that too which is why i put the card with the firmware it originally shipped with back in and booted it up but it was still ghosted/bleeding like in the picture.
Yes, it also uses the same bad timings.
Title: Re: Screen now bad
Post by: iball on December 12, 2019, 07:44:32 pm
I actually thought that too which is why i put the card with the firmware it originally shipped with back in and booted it up but it was still ghosted/bleeding like in the picture.
Yes, it also uses the same bad timings.
Intriguing if not entirely unexpected based upon what I've read up on in here over the years.
So what do I need to modify to get the correct timings?  Recompile the kernel with the right timing info?  Or is that in the driver?
Where's do I find the correct timings for the LCD installed in the RG350?
Title: Re: Screen now bad
Post by: ReverendS3rvo on December 13, 2019, 01:58:35 am
AFAIK on discord there is only one user that reported their screen going bad (ReverendS3rvo), not two.
Hey, that's me. Lol
Here's a video of what mine was doing. Pretty much the same deal.
https://www.youtube.com/watch?v=soqJpoXxFnA
I recommend that Discord as well.
Title: Re: Screen now bad
Post by: tonyjih on December 13, 2019, 02:23:51 am
I'll have a look asap
Title: Re: Screen now bad
Post by: iball on December 13, 2019, 03:25:30 am
AFAIK on discord there is only one user that reported their screen going bad (ReverendS3rvo), not two.
Hey, that's me. Lol
Here's a video of what mine was doing. Pretty much the same deal.
https://www.youtube.com/watch?v=soqJpoXxFnA
I recommend that Discord as well.
That is *exactly* what mine is now doing.  Never been dropped, matter of fact it's never left my home.
How did you fix it?
Title: Re: Screen now bad
Post by: Recce on December 13, 2019, 06:16:27 am
Looks exactly like what had happened to my Samsung 55" TV early this year. Initially there's only a few vertical lines, then more and more started appearing and covering almost the whole screen.

I would think this is a hardware issue.
Title: Re: Screen now bad
Post by: pcercuei on December 13, 2019, 09:16:16 am
I'll have a look asap
Try with these settings:
320, 240, 320, 240, 60, 30, 8, 60, 20, 8, 2
Title: Re: Screen now bad
Post by: a330boy on December 13, 2019, 05:03:15 pm
I'll have a look asap
Try with these settings:
320, 240, 320, 240, 60, 30, 8, 60, 20, 8, 2

for those who are willing to test the kernel building where did these magic numbers came from ??
thanks !!
Title: Re: Screen now bad
Post by: pcercuei on December 13, 2019, 06:24:48 pm
I'll have a look asap
Try with these settings:
320, 240, 320, 240, 60, 30, 8, 60, 20, 8, 2

for those who are willing to test the kernel building where did these magic numbers came from ??
thanks !!

Revisited values (I think I had them swapped before):
320, 240, 320, 240, 60, 16, 6, 20, 60, 2, 8.

The values are:
bw, bh, dw, dh, fclk, hsw, vsw, elw, blw, efw, bfw.

The screen is 320x240 and you want 60 Hz, so
bw = dw = 320,
bh = dh = 240,
fclk = 60.

You want a perfect 60 Hz from a 6 MHz pixel clock, so you want to find values that gives you:
(320 + elw + blw) * (240 + efw + bfw) * 60 == 6,000,000

One solution is 400 * 250 * 60 == 6,000,000,
which means (elw + blw == 80) and (efw + bfw == 10).

Then in the datasheet, these constraints are set:
- H back porch (blw) between 3..43 pixclocks,
- H front porch (400 - dw - blw) between 2..75 pixclocks,
- V back porch (bfw) between 2..12 lines,
- V front porch (250 - dh - bfw) between 2..37 lines,
- HSYNC (hsw) between 2..43 pixclocks and below H back porch value,
- VSYNC (vsw) between 2..12 lines  and below V back porch value.

So just I pick blw == 20, which means elw == 60, and bfw == 8 which means efw == 2, in order to validate the equation. Then hsw == 16 / vsw == 6, since they just need to be smaller than blw / bfw respectively.
Title: Re: Screen now bad
Post by: iball on December 13, 2019, 06:47:48 pm
I don't have a dev environment set up for this but would be willing to test a kernel someone's already compiled with these new numbers.
Title: Re: Screen now bad
Post by: a330boy on December 13, 2019, 07:32:58 pm
I'll have a look asap
Try with these settings:
320, 240, 320, 240, 60, 30, 8, 60, 20, 8, 2

for those who are willing to test the kernel building where did these magic numbers came from ??
thanks !!

Revisited values (I think I had them swapped before):
320, 240, 320, 240, 60, 16, 6, 20, 60, 2, 8.

The values are:
bw, bh, dw, dh, fclk, hsw, vsw, elw, blw, efw, bfw.

The screen is 320x240 and you want 60 Hz, so
bw = dw = 320,
bh = dh = 240,
fclk = 60.

You want a perfect 60 Hz from a 6 MHz pixel clock, so you want to find values that gives you:
(320 + elw + blw) * (240 + efw + bfw) * 60 == 6,000,000

One solution is 400 * 250 * 60 == 6,000,000,
which means (elw + blw == 80) and (efw + bfw == 10).

Then in the datasheet, these constraints are set:
- H back porch (blw) between 3..43 pixclocks,
- H front porch (400 - dw - blw) between 2..75 pixclocks,
- V back porch (bfw) between 2..12 lines,
- V front porch (250 - dh - bfw) between 2..37 lines,
- HSYNC (hsw) between 2..43 pixclocks and below H back porch value,
- VSYNC (vsw) between 2..12 lines  and below V back porch value.

So just I pick blw == 20, which means elw == 60, and bfw == 8 which means efw == 2, in order to validate the equation. Then hsw == 16 / vsw == 6, since they just need to be smaller than blw / bfw respectively.

Got it. ;)
tyvm
Title: Re: Screen now bad
Post by: iball on December 13, 2019, 11:03:53 pm
[email protected] is still stalling.  That was the retrogame300.com website I ordered it from.
Until they replace my broken unit, I'd recommend staying away from them.

Second unit I ordered from retromimi as a gift for a friend is still doing OK.  He enjoys it very much and so far the screen hasn't crapped out on him.  And retromimi had some fast drop-shipping straight from the factory, unlike the above named site.

Calling it done with fly-by-night Chinesium handhelds like this once Retromimi gets around to shipping me my pre-ordered PG2, which will probably be after they're done shipping a few dozen free ones to YouTubers to drum up more sales.

Back to my 6 year-old GCW-Zero for now.  Wish it had some nice updated firmware though...
Title: Re: Screen now bad
Post by: ReverendS3rvo on December 14, 2019, 01:28:41 am
That is *exactly* what mine is now doing.  Never been dropped, matter of fact it's never left my home.
How did you fix it?

I didn't. RMA'd to retromimi. They have a good warranty program. New one just got here. Will wait and see what happens. I'm gonna wait on a good firmware update before I mess with it much more.
Title: Re: Screen now bad
Post by: elea on December 14, 2019, 12:32:28 pm
fwiw retrogame300.com is run by retromimi.
Title: Re: Screen now bad
Post by: iball on December 14, 2019, 09:29:29 pm
fwiw retrogame300.com is run by retromimi.
Well, in that case Retromimi is kind of jerking me around.
They want to ship out a new micro-SD card instead of a new unit. 
Yeah, I've used the original shipping micro-SD, and two different Sandisk micro-SD cards bought in-person at Microcenter and known to be good and reflashing the firmware still didn't fix the problem.
Title: Re: Screen now bad
Post by: Nicofilms on December 19, 2019, 09:08:16 pm
Mine has blown away too..vertically lined thast appeared suddenly
the same problem.. Firmware changes didnt repair it...
Its fried may by abnormal parameters or overclok on screen drivers settings...or just be faulty screens...


Title: Re: Screen now bad
Post by: iball on December 19, 2019, 11:08:17 pm
Mine has blown away too..vertically lined thast appeared suddenly
the same problem.. Firmware changes didnt repair it...
Its fried may by abnormal parameters or overclok on screen drivers settings...or just be faulty screens...
Same thing that happened to mine.
I think it's a batch of faulty screens and we're probably going to see more and more going bad as time goes on.
Title: Re: Screen now bad
Post by: Nicofilms on December 20, 2019, 07:24:57 pm
yep...totally agree. there was a bit of discussion about bad timings or overvolts wrong parameters on open dingux operating system screen drivers for RG350...
but if that were the case hundreds not dozens of screens  should have fail down..and by this time we are only a bad luck bunch of 3 or 4 people...at least a few reports only...Because sometimes people talk or explain to bo one... simply drop their faulty item on the litter and end of story...
we will wait and see...if its a plague we will notice early
Title: Re: Screen now bad
Post by: RxBrad on December 20, 2019, 07:32:58 pm
yep...totally agree. there was a bit of discussion about bad timings or overvolts wrong parameters on open dingux operating system screen drivers for RG350...
but if that were the case hundreds not dozens of screens  should have fail down..and by this time we are only a bad luck bunch of 3 or 4 people...at least a few reports only...Because sometimes people talk or explain to bo one... simply drop their faulty item on the litter and end of story...
we will wait and see...if its a plague we will notice early

Have you tried the most recent 1.7.9.1 Rogue firmware?  I only ask because it looks like you posted this before that version was actually released.  1.7.9.1 is supposed to have specific LCD timing adjustments that might help with this.  Maybe earlier batches of RG-350 LCDs were more tolerant of "incorrect" timings built into previous firmware...
Title: Re: Screen now bad
Post by: iball on December 20, 2019, 09:44:52 pm
yep...totally agree. there was a bit of discussion about bad timings or overvolts wrong parameters on open dingux operating system screen drivers for RG350...
but if that were the case hundreds not dozens of screens  should have fail down..and by this time we are only a bad luck bunch of 3 or 4 people...at least a few reports only...Because sometimes people talk or explain to bo one... simply drop their faulty item on the litter and end of story...
we will wait and see...if its a plague we will notice early

Have you tried the most recent 1.7.9.1 Rogue firmware?  I only ask because it looks like you posted this before that version was actually released.  1.7.9.1 is supposed to have specific LCD timing adjustments that might help with this.  Maybe earlier batches of RG-350 LCDs were more tolerant of "incorrect" timings built into previous firmware...
Tried that firmware yesterday and it didn't fix the bad screen.
Title: Re: Screen now bad
Post by: pcercuei on December 20, 2019, 11:45:12 pm
I get these fade-outs with the 5.5 kernel, and never saw one with the stock firmware, so while I don't discard it being a hardware fault (probably power related), the software definitely has an effect on it.
Title: Re: Screen now bad
Post by: iball on December 21, 2019, 12:04:57 am
I get these fade-outs with the 5.5 kernel, and never saw one with the stock firmware, so while I don't discard it being a hardware fault (probably power related), the software definitely has an effect on it.
Stock firmware doesn't fix it on mine. 
But based on the several instances of cold solder joints I saw on the mainboard in mine, it's probably just piss-poor QA/QC at whatever place put it all together with the end result being a damaged screen.
Title: Re: Screen now bad
Post by: Nicofilms on December 26, 2019, 06:36:32 pm
another one bites the dust....faulty screen reported by an user of telegram rg 350 spanish forums...directly faulty from factory shopped at retromimi.com

here the video proof...

https://t.me/rg350spain/18133
Title: Re: Screen now bad
Post by: iball on December 26, 2019, 06:43:48 pm
another one bites the dust....faulty screen reported by an user of telegram rg 350 spanish forums...directly faulty from factory shopped at retromimi.com

here the video proof...

https://t.me/rg350spain/18133
That makes, what?  4 now?
Title: Re: Screen now bad
Post by: Nicofilms on December 27, 2019, 11:22:45 am
another one bites the dust....faulty screen reported by an user of telegram rg 350 spanish forums...directly faulty from factory shopped at retromimi.com

here the video proof...

https://t.me/rg350spain/18133
That makes, what?  4 now?

plus another one here...

https://t.me/rg350spain/18398
Title: Re: Screen now bad
Post by: iball on January 10, 2020, 07:17:37 pm
UPDATE:  So they sent me a cheap, unbranded micro-SD card instead of an actual RG350 replacement.
And of course this "new" micro-SD doesn't fix the bad screen problem.
I've emailed them once again to ask why they didn't bother to read any of the emails I sent them when I said I tried *better* micro-SD cards than the ones they ship in the RG350 and the screen is still bad.

I've got a Pocket Go 2 on the way but after that, I'm done with Chinesium handhelds until these manufacturers get their shit together when it comes to QA/QC. 
Got an Odroid Go Advance on pre-order but since that's made in South Korea it's going to actually have some decent QA/QC done on it and probably not have screens that go bad in a few weeks, cold solder joints everywhere, flux left on the board, etc.

So remember folks, a handheld "Made in China" from a company that doesn't already have a reputation for quality is a complete gamble.
Title: Re: Screen now bad
Post by: eltehero on January 10, 2020, 07:26:18 pm
Well I'm shocked. Anbernic do have experience in producing solid handhelds and the RG350 is seen by many as one of the best if not the best retro handheld of last year. They also made the Retrogame 300 which is probably the best JZ4760B device so these screen problems are disappointing from the company.
Title: Re: Screen now bad
Post by: iball on January 10, 2020, 07:39:14 pm
Well I'm shocked. Anbernic do have experience in producing solid handhelds
No, they don't.  Take the cover off your RG350 or RG300 and look at the mainboard.  You'll find cold solder joints all over.
Title: Re: Screen now bad
Post by: eltehero on January 10, 2020, 07:44:03 pm
Well I'm shocked. Anbernic do have experience in producing solid handhelds
No, they don't.  Take the cover off your RG350 or RG300 and look at the mainboard.  You'll find cold solder joints all over.

Oh, Ok I have never seen the insides of the devices
Title: Re: Screen now bad
Post by: iball on January 10, 2020, 07:48:19 pm
Well I'm shocked. Anbernic do have experience in producing solid handhelds
No, they don't.  Take the cover off your RG350 or RG300 and look at the mainboard.  You'll find cold solder joints all over.

Oh, Ok I didn't know.
That's OK, most people don't.  I now consider every RG350 sold to be a ticking time bomb just waiting to die.
I've emailed them again to just refund me the money since I'm kind of done dealing with them ever again.
Title: Re: Screen now bad
Post by: eltehero on January 10, 2020, 07:53:33 pm
Well I'm shocked. Anbernic do have experience in producing solid handhelds
No, they don't.  Take the cover off your RG350 or RG300 and look at the mainboard.  You'll find cold solder joints all over.

Oh, Ok I didn't know.
That's OK, most people don't.  I now consider every RG350 sold to be a ticking time bomb just waiting to die.
I've emailed them again to just refund me the money since I'm kind of done dealing with them ever again.

Hope it goes well and you get refunded
Title: Re: Screen now bad
Post by: goodfodder on January 12, 2020, 12:33:53 am
Well I'm shocked. Anbernic do have experience in producing solid handhelds
No, they don't.  Take the cover off your RG350 or RG300 and look at the mainboard.  You'll find cold solder joints all over.

Oh, Ok I didn't know.


That's OK, most people don't.  I now consider every RG350 sold to be a ticking time bomb just waiting to die.
I've emailed them again to just refund me the money since I'm kind of done dealing with them ever again.

Hope it goes well and you get refunded

Ive had no issues and the unit has been on a round the world trip with me.
To me the photos look like a typical ribbon cable connection problem, have people tried to reseat it?
Have people been playing with full brightness?
Title: Re: Screen now bad
Post by: iball on January 12, 2020, 12:40:12 am
Ive had no issues and the unit has been on a round the world trip with me.
To me the photos look like a typical ribbon cable connection problem, have people tried to reseat it?
Have people been playing with full brightness?
I've re-seated the ribbon cable, no change.
Tried different micro-SD cards, no change. 
They just shipped one with a bad screen and now no longer reply to my emails about it after sending me a cheap, unbranded micro-SD that doesn't even work - the unit won't even boot with it. 
Done with Anbernic, done with retromimi, done with Chinesium handhelds, period, because they perform absolutely no QA/QC on anything. 
The factory makes it, boxes it up, ships it directly to the user who ordered one.
Any emails or website proclaiming that they "inspect" or "test" them prior to shipping is lying in order to cover a possible manufacturing delay.
Sure, you might get one that will last but the odds are against it lasting a long time. 
Certainly not as long as my GCW-Zero has lasted, definitely not as long as a PS Vita.
Title: Re: Screen now bad
Post by: ace9094 on January 12, 2020, 02:34:17 am
Ive had no issues and the unit has been on a round the world trip with me.
To me the photos look like a typical ribbon cable connection problem, have people tried to reseat it?
Have people been playing with full brightness?
I've re-seated the ribbon cable, no change.
Tried different micro-SD cards, no change. 
They just shipped one with a bad screen and now no longer reply to my emails about it after sending me a cheap, unbranded micro-SD that doesn't even work - the unit won't even boot with it. 
Done with Anbernic, done with retromimi, done with Chinesium handhelds, period, because they perform absolutely no QA/QC on anything. 
The factory makes it, boxes it up, ships it directly to the user who ordered one.
Any emails or website proclaiming that they "inspect" or "test" them prior to shipping is lying in order to cover a possible manufacturing delay.
Sure, you might get one that will last but the odds are against it lasting a long time. 
Certainly not as long as my GCW-Zero has lasted, definitely not as long as a PS Vita.

I feel your pain, but I have an A320 still going after almost 10 years...  I had 2 RG-350's from Retromimi, my grey unit perfect, but on the Black and Orange unit the IPS screen is not seated correctly... I opened the unit and the the case is moulded out of shape so I have massive light leak... I also had an RS-90 with a loose Micro USB :( port....
Title: Re: Screen now bad
Post by: iball on January 15, 2020, 11:24:49 pm
UPDATE:  They finally got back to me and have implied they're going to send out a replacement unit.
As soon as I get it, I'm going to inspect it to see if there's been any actual increase in the QA/QC they perform on these things.
Title: Re: Screen now bad
Post by: a330boy on January 17, 2020, 12:17:14 am
I think the vendor were I bought mine tested my unit. There were no roms, but I found a lot of saved games and save states that weren't mine.
Title: Re: Screen now bad
Post by: Nicofilms on January 17, 2020, 05:07:50 pm
UPDATE:  They finally got back to me and have implied they're going to send out a replacement unit.
As soon as I get it, I'm going to inspect it to see if there's been any actual increase in the QA/QC they perform on these things.

Didnt they asked you to air mail them the faulty one prior to send you back the replacement unit?
weird...
Title: Re: Screen now bad
Post by: iball on January 17, 2020, 05:50:09 pm
UPDATE:  They finally got back to me and have implied they're going to send out a replacement unit.
As soon as I get it, I'm going to inspect it to see if there's been any actual increase in the QA/QC they perform on these things.

Didnt they asked you to air mail them the faulty one prior to send you back the replacement unit?
weird...
Nope.  Of course I emailed them a pic of the bad screen. 
They're probably already aware the screen they're using or the way they've installed it has a high failure rate.
Title: Re: Screen now bad
Post by: Nicofilms on January 17, 2020, 06:21:06 pm
you tell me... i repaired my unit with a replacement screen...no patience to argue with this people...

Title: Re: Screen now bad
Post by: iball on January 17, 2020, 06:42:47 pm
you tell me... i repaired my unit with a replacement screen...no patience to argue with this people...
I hear you.  Can you link me to a good replacement screen in case it happens again?
Title: Re: Screen now bad
Post by: eltehero on January 17, 2020, 06:53:40 pm
Ive had no issues and the unit has been on a round the world trip with me.
To me the photos look like a typical ribbon cable connection problem, have people tried to reseat it?
Have people been playing with full brightness?
I've re-seated the ribbon cable, no change.
Tried different micro-SD cards, no change. 
They just shipped one with a bad screen and now no longer reply to my emails about it after sending me a cheap, unbranded micro-SD that doesn't even work - the unit won't even boot with it. 
Done with Anbernic, done with retromimi, done with Chinesium handhelds, period, because they perform absolutely no QA/QC on anything. 


dont give up on chinese retro handelds just yet, you still need to use the GDK350H first
Title: Re: Screen now bad
Post by: iball on January 17, 2020, 06:55:38 pm

dont say that just yet, you still need to use the GDK350H first

Which is probably made in the same factory by the same people with the same lack of any QA/QC prior to drop-shipping it to the user.
I'm waiting for the Odroid-Go Advance to come out since that will be made in South Korea which tends to have higher levels of QA/QC done in their factories.
Title: Re: Screen now bad
Post by: eltehero on January 17, 2020, 07:02:14 pm

dont say that just yet, you still need to use the GDK350H first

Which is probably made in the same factory by the same people with the same lack of any QA/QC prior to drop-shipping it to the user.
I'm waiting for the Odroid-Go Advance to come out since that will be made in South Korea which tends to have higher levels of QA/QC done in their factories.

the caanoo I used to have was a Korean device and was really well built
Title: Re: Screen now bad
Post by: Nicofilms on January 18, 2020, 12:06:00 am
good screen replacement for rg350 here...
it works perfectly well. Fairly better than factory screen.,.


https://m.es.aliexpress.com/item/4000318225148.html
Title: Re: Screen now bad
Post by: davidgilmour on January 18, 2020, 12:10:56 am

dont say that just yet, you still need to use the GDK350H first

Which is probably made in the same factory by the same people with the same lack of any QA/QC prior to drop-shipping it to the user.
I'm waiting for the Odroid-Go Advance to come out since that will be made in South Korea which tends to have higher levels of QA/QC done in their factories.

the caanoo I used to have was a Korean device and was really well built
Yes, but even that one had some screen troubles (the bezel was fitted wrong)
just like the OLED Wiz ( failure after a while)  And the first PSvita too (black oled spots)
Title: Re: Screen now bad
Post by: iball on February 07, 2020, 07:10:05 pm
UPDATE:  Replacement RG350 was shipped and I just received it and swapped in a fresh 64GB card with the latest Rogue firmware on it and everything seems fine so far. 

Only time will tell if this one lasts any longer than the previous one.
Title: Re: Screen now bad
Post by: Recce on February 18, 2020, 09:35:29 am

dont say that just yet, you still need to use the GDK350H first

Which is probably made in the same factory by the same people with the same lack of any QA/QC prior to drop-shipping it to the user.
I'm waiting for the Odroid-Go Advance to come out since that will be made in South Korea which tends to have higher levels of QA/QC done in their factories.

the caanoo I used to have was a Korean device and was really well built
Yes, but even that one had some screen troubles (the bezel was fitted wrong)
just like the OLED Wiz ( failure after a while)  And the first PSvita too (black oled spots)

I've ordered the Odroid Go Advance in early Feb and yesterday was told they have to wait till May or Jun to get new stocks. I don't feel comfortable having money deducted from my credit card and then wait 3 to 4 months for it to deliver, so asked them to cancel the order.

Could be a blessing in disguise as I saw at the Odriod forum all the assembly problems users have encountered. Looks like it is no better than China made ones and may even be worse since any damage you made during assembly is your fault. I can now see why they sell it in kit form, lesser liability.

I'm now looking at alternatives such as the Powkiddy X18 or A19.
Title: Re: Screen now bad
Post by: iball on February 18, 2020, 10:36:47 pm

dont say that just yet, you still need to use the GDK350H first

Which is probably made in the same factory by the same people with the same lack of any QA/QC prior to drop-shipping it to the user.
I'm waiting for the Odroid-Go Advance to come out since that will be made in South Korea which tends to have higher levels of QA/QC done in their factories.

the caanoo I used to have was a Korean device and was really well built
Yes, but even that one had some screen troubles (the bezel was fitted wrong)
just like the OLED Wiz ( failure after a while)  And the first PSvita too (black oled spots)

I've ordered the Odroid Go Advance in early Feb and yesterday was told they have to wait till May or Jun to get new stocks. I don't feel comfortable having money deducted from my credit card and then wait 3 to 4 months for it to deliver, so asked them to cancel the order.

Could be a blessing in disguise as I saw at the Odriod forum all the assembly problems users have encountered. Looks like it is no better than China made ones and may even be worse since any damage you made during assembly is your fault. I can now see why they sell it in kit form, lesser liability.

I'm now looking at alternatives such as the Powkiddy X18 or A19.
I had zero issues putting together my Odroid Go Advance, probably because I followed the instructions.
Title: Re: Screen now bad
Post by: Recce on February 19, 2020, 03:28:36 am

dont say that just yet, you still need to use the GDK350H first

Which is probably made in the same factory by the same people with the same lack of any QA/QC prior to drop-shipping it to the user.
I'm waiting for the Odroid-Go Advance to come out since that will be made in South Korea which tends to have higher levels of QA/QC done in their factories.

the caanoo I used to have was a Korean device and was really well built
Yes, but even that one had some screen troubles (the bezel was fitted wrong)
just like the OLED Wiz ( failure after a while)  And the first PSvita too (black oled spots)

I've ordered the Odroid Go Advance in early Feb and yesterday was told they have to wait till May or Jun to get new stocks. I don't feel comfortable having money deducted from my credit card and then wait 3 to 4 months for it to deliver, so asked them to cancel the order.

Could be a blessing in disguise as I saw at the Odriod forum all the assembly problems users have encountered. Looks like it is no better than China made ones and may even be worse since any damage you made during assembly is your fault. I can now see why they sell it in kit form, lesser liability.

I'm now looking at alternatives such as the Powkiddy X18 or A19.
I had zero issues putting together my Odroid Go Advance, probably because I followed the instructions.

I've been monitoring the Odroid forum for past 2 months, it doesn't look like user's fault. For example a couple of the users had the delivered PCB without the shoulder button soldered on, i.e. only the solder pads but no button there. Another few users found that the clips holding the LCD screen is way too tight, difficult to snap in. And although there are quite a few options when it comes to the OS image, all of them have various issues here and there. If only the developers can band together and concentrate on 1 distro build and get it right out of the box, instead of building their own versions of OSes, the situation might be better.

Go over there and take a look, and read the user's feedback, you will be well informed.
Title: Re: Screen now bad
Post by: MaddieLurker on February 21, 2020, 05:02:43 pm
UPDATE:  Replacement RG350 was shipped and I just received it and swapped in a fresh 64GB card with the latest Rogue firmware on it and everything seems fine so far. 

Only time will tell if this one lasts any longer than the previous one.
Did you open it to see if this unit also had sloppy soldering on the board? I ordered mine just yesterday and I'm hoping they are taking users' feedback into consideration with these new batches.
Title: Re: Screen now bad
Post by: iball on February 22, 2020, 02:51:45 am
UPDATE:  Replacement RG350 was shipped and I just received it and swapped in a fresh 64GB card with the latest Rogue firmware on it and everything seems fine so far. 

Only time will tell if this one lasts any longer than the previous one.
Did you open it to see if this unit also had sloppy soldering on the board? I ordered mine just yesterday and I'm hoping they are taking users' feedback into consideration with these new batches.

Yes, the new one shipped to me had the same cold solder joints on the board. 
They aren't doing any QA/QC on these things at the factory.
Title: Re: Screen now bad
Post by: eltehero on February 22, 2020, 08:04:39 am
UPDATE:  Replacement RG350 was shipped and I just received it and swapped in a fresh 64GB card with the latest Rogue firmware on it and everything seems fine so far. 

Only time will tell if this one lasts any longer than the previous one.
Did you open it to see if this unit also had sloppy soldering on the board? I ordered mine just yesterday and I'm hoping they are taking users' feedback into consideration with these new batches.

Yes, the new one shipped to me had the same cold solder joints on the board. 
They aren't doing any QA/QC on these things at the factory.

@iball, Is the screen on your replacement unit still ok? I am seriously considering getting an RG350 as suitable replacement device for my gcw zero as it seems to be the best option atm at a decent price. I do not want a pocketgo 2 because of hardware issues reported by some users even though it looks very similar to the gcw zero.
Title: Re: Screen now bad
Post by: iball on February 23, 2020, 06:20:30 am
UPDATE:  Replacement RG350 was shipped and I just received it and swapped in a fresh 64GB card with the latest Rogue firmware on it and everything seems fine so far. 

Only time will tell if this one lasts any longer than the previous one.
Did you open it to see if this unit also had sloppy soldering on the board? I ordered mine just yesterday and I'm hoping they are taking users' feedback into consideration with these new batches.

Yes, the new one shipped to me had the same cold solder joints on the board. 
They aren't doing any QA/QC on these things at the factory.

@iball, Is the screen on your replacement unit still ok? I am seriously considering getting an RG350 as suitable replacement device for my gcw zero as it seems to be the best option atm at a decent price. I do not want a pocketgo 2 because of hardware issues reported by some users even though it looks very similar to the gcw zero.
So far it's still good, but I'm not holding out any hope it will last as long as my GCW-Zero has.