Post by: exorio on May 04, 2019, 06:54:25 pm
Where to buy
https://www.aliexpress.com/wholesale?catId=0&initiative_id=SB_20190505034600&SearchText=LDK+game
https://retromimi.com/
This guide should also works for RS-97
1. Preparing
1.1 Hardware in summary
Review : https://boards.dingoonity.org/ingenic-jz4760-devices/ldk-game-review/msg186265/#msg186265
Specifications : https://boards.dingoonity.org/ingenic-jz4760-devices/ingenic-devices-guide/msg185810/#msg185810
1.2 Firmware
Stock firmware dump :
https://boards.dingoonity.org/ingenic-jz4760-devices/ldk-game-vertical-stock-fw-dump/
If you're happy with the stock firmware, just use that. You can skip this section (1.2) entirely
Otherwise, you can go here for LDK firmwares :
RetroFW/Useless Firmware : https://jutleys.wixsite.com/retrogamers97-90
Difference between RetroFW and Useless Firmware : RetroFW is newer one, and recommended by most, but currently with less supporting games/softwares. More games and softwares are added gradually along time.
So if you just want the emulation and don't really care about the native apps/games go with RetroFW. Better features, better emulation overall. There's no reason to stick with Useless Firmware, other than the native apps/games.
Useless firmware is the older one but with more supporting games/softwares. Closer to stock rom that was preinstalled when you first received your LDK.
You should use either, since they actually feel the same, most changes are done under the hood.
It's all up to you. But then again, if you still use stock and happy with it, then there's no need using the above firmwares.
Image Writer (write .img file to SDCard)
Etcher : https://etcher.io
Rufus : https://rufus.ie
Etcher is the most recommended, clean and barebone, simplistic interface.
Use Rufus only if you had problem with Etcher.
There're others such as win32diskimager or tons of other programs thar can handle .img files, but I suppose those two are simple enough and do their job wonderfully.
Partitioning
Partitioning only needed if you need to expand/shrink the FAT32 partition. If the firmware is working and you got no missing space on your SD, then there's no need to do any partitioning.
Also, there's an unallocated 8mb partition before the EXT3, but just leave it like that.
You can use any partitioning tools out there.
For Windows you can use Minitool Partition Wizard here :
https://www.partitionwizard.com/free-partition-manager.html
For Linux you can use GParted.
The SDCard written with the firmware will have 3 partitions; EXT3 (Linux; about 128 mb), SWAP (Linux swap partition; about 256 mb) and FAT32 (should fill the rest of the space; do the math yourself).
You can use Partition Wizard to hide EXT3 and SWAP partition so Windows don't mount them, which will causes Windows to tell you to format the card.
Full guide on installing RetroFW Firmware here :
https://boards.dingoonity.org/ingenic-jz4760-devices/how-to-install-retrofw-on-your-ldkrs-97/
1.3 Copying files to the SDCard
There's no need to take the SDCard out everytime you want to copy stuffs to it.
Method 1 : just turn your LDK on, then plug the USB cable, it will prompt you to choose whether to use the USB connection for charging or for copying files. Windows won't see the linux and swap partition, only the FAT32 partition. After you're done, it will go back to the UI/desktop. This is my preferred method. Only works on RetroFW, not Useless Firmware.
Method 2 : Connect your USB cable while the LDK is off, switch your LDK on. Windows will detect LDK and on LDK it will ask you for connection options. After you're done, the LDK will turn itself off/reboot. Works on RetroFW and Useless Firmware
1.4 External SDCard
You can use the external SDCard slot (on the left side of your device)
Both cards (internal and external) are accessible from /mnt or /media
2. The goodies
2.1 Games
ROMS (ARCADE/SNES/NES/GBA/GENESIS/MASTERSYSTEM, etc)
You need to look for the roms yourself on the internet.
After you download them, you can place the roms within "roms" folder, and point the emulators to the games you want to play.
Most of the emulators will prompt you to file browsers directly at start.
SDLPal
(http://www.romhacking.net/translations/pc/images/2441screenshot2.png)
English translation guide here :
https://boards.dingoonity.org/ingenic-jz4760-devices/sdlpal-(the-legend-of-sword-and-fairy)-english-translation/
Cannonball
(https://i.ytimg.com/vi/WiWiTXq4yYY/hqdefault.jpg)
Find outrun arcade rom, extract all the contents to .cannonball/roms
If you can't find the .cannonball folder, you can create it yourself. Create folder with any name (say "aaa"), use cmd, make sure you're at where "aaa" folder is located, then type (without the quote) "ren aaa .cannonball". Then create the "roms" folder inside it.
OpenBOR
(https://i.ytimg.com/vi/wnbWuO0lZMU/hqdefault.jpg)
OpenBOR itself is an engine. You need to download the .pak files (you can find them on the link above) and place it inside the pak folder within the OpenBOR folder. After that, just start up OpenBOR, then pick the .pak file you want to play. You can get the pak files here :
http://www.chronocrash.com
Most of the games are beat-em-ups, Final Fight/Streets of Rage clones, but there're some exceptions, like Contra Locked and Loaded.
NOT ALL game modules (pak) would run on LDK though.
On the side note, this firmware :
https://boards.dingoonity.org/ingenic-jz4760-devices/ldk-retrogame/msg186707/#msg186707
Have paks file inside openBOR folder, and (probably) curated.
You can flash that firmware to another SDCard or USB stick, then extract the paks.
Eduke32
Shareware version included. But can use the duke.grp from Duke Nukem 3D Megaton edition/Atomic edition or the original Dos version. Replace the duke.grp within the eduke folder.
Doom engines
(https://freedoom.github.io/img/screenshots/th_phase2-0.11_02.jpg)
Can use either official/full version .wad files (doom.wad, doom2.wad, plutonia.wad, tnt.wad, heretic.wad, hexen.wad) or these free alternatives :
Chocolate Doom
freedoom wad : https://freedoom.github.io/download.html
Chocolate Heretic
blasphemer wad : https://www.doomworld.com/vb/freedoom/70732-blasphemer-discussion/
Chocolate Hexen
Zauberer wad : https://www.doomworld.com/vb/freedoom/72519-zauberer/
Unfortunately Hexen Deathkings of the Dark Citadel isn't supported.
You can place the wads either within the chocolate-doom folder or separated folder (i.e. "wads" inside "roms" folder)
Stand alone iwads for modern ports works too, HACX is confirmed can run without doom2 iwad, so other similar projects should work as well (as long as chocolate doom supports it)
https://www.doomworld.com/idgames/themes/hacx/hacx12
ECWolf/Wolf3D
Shareware version included. But ECWolf can use .wl6 files (full version files).
For Wolf3D however :
https://boards.dingoonity.org/ingenic-jz4760-devices/wolfenstein-3d-won't-accept-full-version/
TL:DR, you need to find the EXACT full version recognized by the program. Which one? I don't know. I haven't succeeded myself. Moving on to other games.
Quake & Quake 2
Shareware version included. But can use the full version of pak0.pak and pak1.pak (id1 folder for Quake 1, baseq2 folder for Quake 2), replace them in your RetroFW SDcard.
Scummvm
Game engine mostly intended to play Lucasarts and Sierra 90's point and click adventure games. You can point out the game folders within ScummVM UI. Most likely supports more than Lucasarts and Sierra's games. You'll have to look it up yourself.
2.2 (currently) Stock/Useless Firmware Only
Bermuda
(http://www.bestoldgames.net/img/ss/bermuda-syndrome/bermuda-syndrome-ss3.jpg)
Need to use Bermuda Syndrome files. Place all the files from the full version within "data" folder inside bermuda folder. Intro movies don't work (only sounds), but the game itself works.
OpenTitus
(http://img110.xooimage.com/files/7/f/2/titus-4c2f5d2.png)
Need to use dos version of Titus the Fox files. Place all the files from the full version within "titus" inside opentitus folder.
REminiscence
(https://archive.org/serve/sg_Flashback_The_Quest_for_Identity_1993_Delphine_U.S._Gold_US_en-fr/Flashback_The_Quest_for_Identity_1993_Delphine_U.S._Gold_US_en-fr_screenshot.gif)
Need to use Flashback for dos files. Place it inside "data" folder within reminiscense folder.
OpenJazz
(http://i46.tinypic.com/mwb40z.jpg)
Shareware version included. But can use full/CD version of Jazz Jackrabbit 1. Place all the files from the full/CD version within openjazz folder.
Rise of the Triad
Shareware version included. But can use the .wad, .rtc, .rtl files from full ROTT version. Place the files within ROTT folder.
2.3 Emulation
PS1 compatibility list
https://boards.dingoonity.org/ingenic-jz4760-devices/psx4all-compatibility-list-14066/
https://boards.dingoonity.org/ingenic-jz4760-devices/jordanjackal27's-psx-ldk-compatability-list/
This list is for dingux but seems to reflect and relevant to the psx4all on LDK/RS-97 :
https://boards.dingoonity.org/dingux-emulation/quick-psx4all-compatibility-overview/
Game specific tweaks
https://boards.dingoonity.org/retrogamers-97/game-specific-psx4all-settings-for-rs97/
PocketSNES
If you're having problem with SNES emulation on RetroFW set the frameskip to "auto"
https://boards.dingoonity.org/ingenic-jz4760-devices/ldk-retrofw-snes-performance/
Arcade
Mame4all uses 0.37b5 mame romset. I didn't test them all.
CPS1, CPS2 and NeoGeo games runs flawless on FBAlpha. So it is very recommended that you use FBAlpha for these 3 systems. Some vertical shoot em up displayed sideways on FBAlpha A320 version. This can be set with the GCW version.
For other systems outside CPS1, CPS2, NeoGeo, some will run good on Mame4all, some will run good on FBAlpha. You have to test them all by yourself.
(Useless Firmware only) Picodrive
Picodrive don't work on Useless Firmware? Try this one :
https://boards.dingoonity.org/retrogamers-97/uselessrs97-internal-firmware-for-revision-2-1/msg184239/#msg184239
Replace all the files within picodrive folder with that one, and you're set.
2.4 Skins and Customizations
Most older gmenu2x skins still works (at least on Useless Firmware).
(https://dl.openhandhelds.org/gp2x/screenshots/screenshot-4.jpg)
(https://dl.openhandhelds.org/gp2x/screenshots/WIN_31.png)
https://dl.openhandhelds.org/cgi-bin/gp2x.cgi?0,0,0,0,61
The whole stuffs only sized about 6 mb
Extract the skins you download, then check the folder structure (see the default skin folder in your gmenu2x for reference)
After that, just copy them to apps\gmenu2x\skins
NOT tested with RetroFW (GMenuNX), but it should work, since I've tested using GMenuNX default skin in GMenu2X, and it works.
Post by: exorio on May 04, 2019, 06:54:32 pm
3. Accessories
3.1 Screen Protection
Check the posts here :
https://boards.dingoonity.org/ingenic-jz4760-devices/screen-protection-for-ldk
Screen Dimensions
LDK screen dimensions :
2.6", WITHOUT the bezel
With the bezel it's about 3.4" diagonally
in centimeters it's 7 x 5.4
Alternative 1 : Camera Display Tempered Glass
Below is Sony Cybershot's tempered glass (Cybershot LCD size is 3") which cover the whole screen,with less than 0.2" uncovered on all sides (check @hiei's thread above; section 1.1).
(https://i.ibb.co/2vCTDXJ/IMG-20190520-232232.jpg) (https://ibb.co/dPVRdnZ)
(https://i.ibb.co/fHGD7Tt/IMG-20190520-232255.jpg) (https://ibb.co/NKnTzGp)
Or you can gamble with these 3.2" tempered glasses :
https://www.aliexpress.com/item/Original-Tempered-Glass-Screen-Protector-For-Canon-EOS-1D-X-1DX-EOS-1DX-EOS-1DX-EOS/32835879037.html
https://www.aliexpress.com/item/debous-2PCS-Screen-Protector-For-Fijiflim-GFX-50S-Optcial-9H-Hard-LCD-Tempered-Glass-For-Fiji/32863664864.html
Both untested. If you do buy one of two above, please do report here, I would like to know as well.
Alternative 2 : GBA SP screen protector
Below is the screen protector for GBA SP. The clear part cover the whole screen (without the bezel). Thus some cuttings will be needed. So if you want to use GBA SP screen protector, better get the bezelless/borderless one. If you can find them, that is.
(https://i.ibb.co/LNTX643/IMG-20190512-023951.jpg) (https://ibb.co/wcnFCDf)
In Summary
- Can use cheap tablet/phone plastic film screen protector (those which are around before tempered glass). Can use generic frosted, non glossy ones to prevent fingerprints.
- GBA SP screen protector/tempered glass would work pretty good (just get the bezelless one), some cuttings MAY be necessary. Good luck finding one though.
- 3" camera viewfinder tempered glass works well enough with some small parts of the bezels left unprotected. Not much choice (like frosted, non glossy; they may be out there but seems very hard to find).
- 3.2" camera 4:3 viewfinder/display tempered glass PROBABLY would work better (not tested)
3.2 Carrying/protective cases
Cases/carrying pouches for GBA Advance SP should fit, albeit a little bigger and LDK is about 6 milimeters taller than GBA SP (closed)
GBA SP (in cm)
8.4 x 8.2 x 2.44
LDK
7,6 x 8.8 x 1.7
(https://images-na.ssl-images-amazon.com/images/I/61Bvu%2BxeTYL._SX342_.jpg)
About an inch or so taller, but it does it job pretty well.
(https://i.ibb.co/wS6LkCn/IMG-20190529-230504.jpg) (https://ibb.co/rxytjMB)
Aliexpress link :
https://www.aliexpress.com/item/Carrying-Pouch-Bag-Box-Case-For-GBA-SP-Game-Console/32961677485.html
Other variants (only found in my local stores)
(https://i.ibb.co/j3QQ66R/7572092-jpg-0f3b67ad-6709-474f-af79-8fa2278aad3d.jpg)
The canvas pouch fits PERFECT. Like it was intended for LDK.
(https://i.ibb.co/HDTNdm0/IMG-20190512-024023.jpg) (https://ibb.co/99HwtRJ)
(https://i.ibb.co/d4K4d3D/IMG-20190512-024026.jpg) (https://ibb.co/7tytwTK)
Can fit in 3 extra batteries.
Second variant
(https://i.ibb.co/zPQ1CLw/IMG-20190513-081505.jpg) (https://ibb.co/tYQSnN5)
(https://i.ibb.co/JcJF9D0/IMG-20190513-081508.jpg) (https://ibb.co/yNjBrHG)
3.3 Battery
Battery uses standard BL-5C which you can buy anywhere.
There're fakes out there but I can't really tell the difference, and the fakes works anyway, probably couple of minutes less capacity so it doesn't bother me much. And they're cheaper too.
But if that bothers you, there're already shit tons of youtube and posts that will explain you the difference between fake and original batteries.
(https://i.ebayimg.com/images/g/zG4AAOSwlkpcNhfH/s-l500.jpg)
BL-5C comes with 1020 mah juice, so keep in mind that there's no possible way to cramp up more power in these things. Any other batteries that claims compatible with BL-5C but have bigger capacity is definitely a FAKE.
Chargers
There're desktop battery charger such as these :
(https://ae01.alicdn.com/kf/HTB1DY3yqpmWBuNjSspdq6zugXXay/USB-BL-5C-Battery-charger-For-Nokia-BL-5C-BL-4C-Nokia-6820-6822-7600-7610.jpg_640x640.jpg)
(https://img.staticbg.com/thumb/large/oaupload/banggood/images/32/ED/c7854ed2-b88b-4776-a6c7-28e7e42f13ab.jpg)
Mostly can be bought from Aliexpress.
Post by: exorio on May 04, 2019, 06:54:45 pm
4. Parts
4.1 LR Buttons
Don't have much to inform about the parts (or yet), but just yesterday suddenly my L button stuck down and cannot be pressed.
Upon inspecting, the L R button uses tiny silicon pads, which was glued (taped to be exact) to the post which reach out to the switch. In this case, the pad went slip out from between the post and the switch.
I'm predicting this will be a common problem for LDK owners, since the pads' glue are very weak, and the buttons aren't well sit on its place. They're still moving around back and forth.
I tried to glue the pad back. Superglue don't play well with silicones and rubbers. So I tried UHU.
(https://static.winc.com.au/pi/93/b0d91616bf357b61e70abf85e87c3fc5aca6aa-55878/full.jpg)
And leave it cure for couple of hours.
The pad still rocking back and forth, so to prevent it from detaching from the post again I reinforce it by dripping couple of drops of superglue around it, but leaving the upper part of silicone pads untouched.
If you do that, remember MAKE SURE the superglue is CURED 100%. Superglue have VERY strong vapor, and that vapor WILL leave marks to anything near it in form of white residue; it can affect other components near it. So just leave it cure for 2 days or something. You can still use the LDK anyway albeit lesser comfortable LR buttons.
The final result looks messy, but it works anyway.
This LR button issue definitely needs to be addressed on LDK2, if they use the same shell/similar form factor (which I wish they should). It is apparent this is a slap in/last-minute solution, probably a miscalculation from the button molds.
4.2 Screen
Defect
The screen got (most likely common) defect, on which the acrylic would touch the LCD surface all the time (may cause damage in long term). I saw pictures of LDK with the EXACT same problem, EXACT same location as mine (black blob/spot on the screen).
Using tempered glass will greatly reduce this defect.
Compatible screen
Discuss it here
https://boards.dingoonity.org/ingenic-jz4760-devices/ldk-screen-mod-(not-mine)/
4.3 Teardown
This is the LR button "mod" I described above. Still going strong. The white things on it are the superglue residue, so like I said, just be careful with it as those comes from the vapor and may affect nearby components.
(https://i.ibb.co/RDCtbcY/IMG-20190525-211158.jpg) (https://ibb.co/Jsz8tHm)
Was hoping the membrane uses standard parts from other consoles, but seems they're custom made. The whole facebuttons are just one part.
(https://i.ibb.co/YygQrKR/IMG-20190525-211218.jpg) (https://ibb.co/NmRC4kV)
The mainboard. There're better pictures around, definitely. This is as far as I'm willing to go.
(https://i.ibb.co/J2HV655/IMG-20190525-211232.jpg) (https://ibb.co/0ZrT4hh)
Screen cable. Can't make it up how many pins it have, or what type is it. But as the old saying goes, don't fix it if it ain't broken. Also the screen was "inserted" into a slot in the front shell and glued tightly. So if you do want to do stuffs with the screen, keep that in mind.
(https://i.ibb.co/vVZQgjb/IMG-20190525-211250.jpg) (https://ibb.co/S5RdW32)
Post by: exorio on May 04, 2019, 06:54:56 pm
Post by: exorio on May 04, 2019, 06:55:06 pm
Post by: exorio on May 04, 2019, 06:55:22 pm
Post by: DonKRuler on May 11, 2019, 05:09:35 pm
If I download 10 snes games and 10 master system games. Do I just extract them and add them to the correct folders which are already created on the LDK? If I use the side slot to add games, I can?t do that can I?
Thanks
Sent from my iPhone using Tapatalk
Post by: exorio on May 11, 2019, 05:41:51 pm
Great Guide for noobs like myself. I have done everything but add games and I am still a bit confused lol.
If I download 10 snes games and 10 master system games. Do I just extract them and add them to the correct folders which are already created on the LDK? If I use the side slot to add games, I can?t do that can I?
Thanks
The emulators recognize zip files.
You can place them anywhere you please, since the emulators will give you file browser anyway.
Post by: DonKRuler on May 11, 2019, 07:24:47 pm
Great Guide for noobs like myself. I have done everything but add games and I am still a bit confused lol.
If I download 10 snes games and 10 master system games. Do I just extract them and add them to the correct folders which are already created on the LDK? If I use the side slot to add games, I can?t do that can I?
Thanks
The emulators recognize zip files.
You can place them anywhere you please, since the emulators will give you file browser anyway.
Oh I see, So when I click on a emulator, it will just recognise the files, even if they are not placed in that folder.
Sent from my iPhone using Tapatalk
Post by: exorio on May 11, 2019, 08:02:52 pm
Oh I see, So when I click on a emulator, it will just recognise the files, even if they are not placed in that folder.
Sent from my iPhone using Tapatalk
(https://upload.wikimedia.org/wikipedia/commons/3/3b/Paris_Tuileries_Garden_Facepalm_statue.jpg)
You need to point out the files using the emulator's file browser.
So where you want to place them it's up to you.
Did you even read the guide above?
I've written about this part too.
Post by: DonKRuler on May 13, 2019, 08:48:01 am
Oh I see, So when I click on a emulator, it will just recognise the files, even if they are not placed in that folder.
Sent from my iPhone using Tapatalk
(https://upload.wikimedia.org/wikipedia/commons/3/3b/Paris_Tuileries_Garden_Facepalm_statue.jpg)
You need to point out the files using the emulator's file browser.
So where you want to place them it's up to you.
Did you even read the guide above?
I've written about this part too.
I read everything lol remember your language will be different to someone?s else, so when you say Point to files, I?m thinking what? lol. Anyway, I downloaded some SNES files and placed them in SNES folder and the emulator recognised it. I have some Nintendo 64 files which are in a zip, so I unzipped one and left the others zipped but it didn?t recognised them. So it will only recognise certain files
Cheers
Sent from my iPhone using Tapatalk
Post by: exorio on May 13, 2019, 10:41:15 am
I read everything lol remember your language will be different to someone?s else, so when you say Point to files, I?m thinking what? lol. Anyway, I downloaded some SNES files and placed them in SNES folder and the emulator recognised it. I have some Nintendo 64 files which are in a zip, so I unzipped one and left the others zipped but it didn?t recognised them. So it will only recognise certain files
Cheers
Sent from my iPhone using Tapatalk
Wut? There's no N64 emulator on this device :o
Post by: DonKRuler on May 13, 2019, 07:40:21 pm
I read everything lol remember your language will be different to someone?s else, so when you say Point to files, I?m thinking what? lol. Anyway, I downloaded some SNES files and placed them in SNES folder and the emulator recognised it. I have some Nintendo 64 files which are in a zip, so I unzipped one and left the others zipped but it didn?t recognised them. So it will only recognise certain files
Cheers
Sent from my iPhone using Tapatalk
Wut? There's no N64 emulator on this device :o
LOL see how am I meant to know. It worked on my other device. I just thought I could download any Nintendo games. Imma stick to those sites which were recommended to me and download.
Sent from my iPhone using Tapatalk
Post by: RowleyBirkinQC on May 14, 2019, 08:40:38 am
Great post, thanks for putting the time in, sure it will help if I get stuck adding RetroFW.
I'm going to buy an LDK next week and wondered if you could give anymore info re the screen protectors, I'd like to have something suitable for when it arrives ideally. Are the GBA ones good enough would you say? Do you have an example?
Also does Streets of Rage Remake work on this? If so how well does it run?
Thanks in advance for any advice.
Post by: exorio on May 14, 2019, 11:57:27 am
Hi Exorio,
Great post, thanks for putting the time in, sure it will help if I get stuck adding RetroFW.
I'm going to buy an LDK next week and wondered if you could give anymore info re the screen protectors, I'd like to have something suitable for when it arrives ideally. Are the GBA ones good enough would you say? Do you have an example?
it's in the guide
Quote
Also does Streets of Rage Remake work on this? If so how well does it run?
Thanks in advance for any advice.
yes and good
Post by: exorio on May 25, 2019, 04:21:51 pm
Although the device is very simple in nature, but be careful with the speaker and the screen wire/cable.
Post by: exorio on May 29, 2019, 05:27:05 pm
Updated the accessories section.
Post by: Stoofa on May 30, 2019, 09:19:12 am
Post by: exorio on May 30, 2019, 10:45:29 am
Great guide mate, very clear and helpful. Good on you!
Thanks.
Seems some pictures are missing. I don't have any idea where to upload them. Will fix if I do have the mood.
Post by: ace9094 on June 13, 2019, 01:46:13 am
https://www.ebay.co.uk/itm/For-2-7-Dual-Core-LDK-Mini-Retro-Classic-Game-Gameboy-Handheld-Console-Accessory/273886232705?hash=item3fc4e44081:m:m13J0h_9Yy6nXa46s0jKC-A
10/10 for this guide... Awesome work !!
Post by: KING_CHODE on July 07, 2019, 01:05:15 am
Using steward's pictures, I was able to find the lcd panel for this device on panelook: http://www.panelook.com/990001260_Innolux_2.7_LCM_overview_30682.html. They have a datasheet available, which I
It doesn't seem too promising in terms of potential screen upgrades though. YUV interface, 51 pins dual row, nonstandard subpixels, and "discontinued"... I don't know what's going to be out there for compatible panels. I was hoping for something more plain like 40-pin single row TTL RGB666 or RGB565... I've been out of the LCD swap game for a few years now though and I don't read mandarin, so perhaps I'm just out of touch.
Does anyone else have any suggestions or ideas for potential screen swaps for the LDK vertical? I am particularly interested to hear from:
1. The software side - Is it possible to send RGB 565 or something more conventional over the lcd output interface? Is it possible to output at a different output resolution (like true 320 x 240 RGBstripe?)
2. The shenzhen/hardware manufacturer side - Do you have any suggestions for compatible IPS or VA-style panels?
Post by: exorio on July 08, 2019, 06:26:30 pm
Thanks for the detailed writeup, exorio. For those interested in a closer look at the hardware, it is worth mentioning that Steward has some good teardown pics on his site at https://steward-fu.github.io/website/handheld/ldk/teardown.htm.
Using steward's pictures, I was able to find the lcd panel for this device on panelook: http://www.panelook.com/990001260_Innolux_2.7_LCM_overview_30682.html. They have a datasheet available, which Ihave attached to this postwas going to attach but the system doesn't like it. PM me if you want it and can't get it from Panelook.
It doesn't seem too promising in terms of potential screen upgrades though. YUV interface, 51 pins dual row, nonstandard subpixels, and "discontinued"... I don't know what's going to be out there for compatible panels. I was hoping for something more plain like 40-pin single row TTL RGB666 or RGB565... I've been out of the LCD swap game for a few years now though and I don't read mandarin, so perhaps I'm just out of touch.
Does anyone else have any suggestions or ideas for potential screen swaps for the LDK vertical? I am particularly interested to hear from:
1. The software side - Is it possible to send RGB 565 or something more conventional over the lcd output interface? Is it possible to output at a different output resolution (like true 320 x 240 RGBstripe?)
2. The shenzhen/hardware manufacturer side - Do you have any suggestions for compatible IPS or VA-style panels?
That's the guide I was looking for! I stumbled upon it before, but can't find the link.
Just want to point out this picture :
(https://steward-fu.github.io/website/handheld/ldk/teardown/3.jpg)
That dark blob is the viewing window touching the LCD screen. That's one of the annoying defect, apart from the taped silicon pad on the LR button.
Mine has that defect too, in the EXACT same location on the screen.
Using tempered glass greatly reduced this defect.
Post by: exorio on July 08, 2019, 06:28:24 pm
Clearly every unit have this taped silicon pad too (silicon with thin double tape, placed on the LR button post)
That even look worst than mine.
Post by: ace9094 on July 09, 2019, 09:09:43 pm
Post by: ace9094 on July 09, 2019, 09:18:33 pm
Hey all,
I have created an ICO file for the LDK as mine has the icon for the RS97... Little things like that bother me hahaha
(https://i.ibb.co/JxzBvvm/Dingoonity.jpg) (https://imgbb.com/)
Hope its useful to someone lol ;D
(https://mega.nz/#!3UASCCTB!GHOuYVcu3mDf77VoS-1fh08YMUoeRTrwNXEqyIFAnwg)
Post by: ace9094 on July 09, 2019, 10:24:55 pm
(https://steward-fu.github.io/website/handheld/ldk/teardown/13.jpg)
Clearly every unit have this taped silicon pad too (silicon with thin double tape, placed on the LR button post)
That even look worst than mine.
Hmmm.... I thinkI might have look for an old TV remote and see if the silicon pad is decent enough to cut up...
Post by: exorio on July 10, 2019, 04:40:48 am
(https://steward-fu.github.io/website/handheld/ldk/teardown/13.jpg)
Clearly every unit have this taped silicon pad too (silicon with thin double tape, placed on the LR button post)
That even look worst than mine.
Hmmm.... I thinkI might have look for an old TV remote and see if the silicon pad is decent enough to cut up...
The problem is not the silicon pad itself. And they're not contact membrane, it's just plain silicon, they're there to add a mm or so height to the button post. Nothing more. The LR buttons are switches, unlike the facebuttons.
Post by: baddog992 on July 22, 2019, 10:24:55 pm
"epr-10381b.132 file." This is file you need to check to make sure this will work correctly. Also Cannonball needs the rom folder and those files from the zip file need to be in that folder. If not Cannonball will not work. Hopefully this will help others. The Vita version instructions seem to work for this version as well when it comes to the right rom set to work. Some one can PM if they need more help with Cannonball.
Post by: Dr_Bunsen on August 16, 2019, 05:41:49 pm
Post by: exorio on August 17, 2019, 06:06:07 pm
Any advice on how to get Rise of the Triad and Spear of Destiny to run with full rather than shareware files? I deleted the shareware files and copied in the full files and now neither game will start.
RetroFW version of Wolf3D is a bit iffy
not sure what version would run on it, said to be GT interactive version, but I only have steam version.
Just use useless firmware if you want less headache with the native games. ROTT and Wolf3D (ECWolf) can use the full version files without problems in useless.
besides on my experience, SNES runs better on useless firmware anyway
https://jutleys.wixsite.com/retrogamers97-90/forum/questions-answers/ldk-firmware
The developers are here in the forum, and the softwares are provided for free, so I don't want to complain much.
Useless Firmware works fine for me anyway.
Post by: nappyrabbit on November 29, 2019, 06:01:43 pm
Post by: exorio on January 17, 2020, 04:26:49 pm
this came up
https://ldkgame.com/pages/guide
Not a word modified from this thread.
Whoever you are you could at least give a link to this thread.
I don't need the credit (I'm using my nickname here anyway).
But the board could definitely benefit from more traffic.