Author Topic: [KERNEL ONLY] Power/Sleep FIX for JXD S7800B (RK3188-T)  (Read 10402 times)

GRiM (OP)

[KERNEL ONLY] Power/Sleep FIX for JXD S7800B (RK3188-T)
« on: October 14, 2014, 12:00:05 pm »
Here is the extracted kernel.img from the Webclaw Special 2GB rom that fixes the power/sleep fix that happens on the RK3188-T variants of the JXD S7800B.  Extracted using the dump tool in Rileys rom.

I have flashed this over CM11 and it has solved the power/sleep issue  :)

I haven't tested on other roms yet or tested if CM11 fully works but thought I would share the news, kernal and flash tool here so people can try for themselves and report back which other roms it works with/doesnt work with and bugs etc.

http://multiupload.biz/kelyetw4o2g9/Flasher_tool_MultiUpload.biz.rar.html
« Last Edit: October 14, 2014, 03:05:43 pm by GRiM »

sandwich

Re: [KERNEL ONLY] Power/Sleep FIX for JXD S7800B (RK3188-T)
« Reply #1 on: October 14, 2014, 03:47:15 pm »
Thanks for share it, GRiM.

Could I know how much score Antutu shows for CM11 in your device?

GRiM (OP)

Re: [KERNEL ONLY] Power/Sleep FIX for JXD S7800B (RK3188-T)
« Reply #2 on: October 15, 2014, 01:11:46 am »
Thanks for share it, GRiM.

Could I know how much score Antutu shows for CM11 in your device?

19710

« Last Edit: October 15, 2014, 01:14:20 am by GRiM »

Re: [KERNEL ONLY] Power/Sleep FIX for JXD S7800B (RK3188-T)
« Reply #3 on: October 18, 2014, 04:25:00 pm »
Can you read the mensege i sended to you Grim? Please!

mauricio330

Re: [KERNEL ONLY] Power/Sleep FIX for JXD S7800B (RK3188-T)
« Reply #4 on: October 19, 2014, 03:34:24 pm »
Thanks for this, worked for me. i had the problem with all fw available (official or not).

tested and working in MAETEL PROMETHEUM CUSTOM FIRMWARE FOR S7800B UPDATE 1 JXD LAUNCHER

curiosity: i bought my 8gb model from jxdofficial dot com, but i noticed that came with a custom fw, not the oficial one. i remember that was signed with v1.5 from middle of 2014 (june maybe). that fw was troubble with 3g dongle, random on/off signal.


thanks !!!!

nitro530

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Re: [KERNEL ONLY] Power/Sleep FIX for JXD S7800B (RK3188-T)
« Reply #5 on: October 21, 2014, 04:24:26 pm »
many thanks  ;D
nitro530

zerobiss

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Re: [KERNEL ONLY] Power/Sleep FIX for JXD S7800B (RK3188-T)
« Reply #6 on: October 25, 2014, 12:11:42 am »
the link is off >:(

GRiM (OP)

« Last Edit: October 25, 2014, 12:16:52 am by GRiM »

zerobiss

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Re: [KERNEL ONLY] Power/Sleep FIX for JXD S7800B (RK3188-T)
« Reply #8 on: October 25, 2014, 08:20:44 pm »
thanks. ill test if power/sleep issue is gone. and report.

zerobiss

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Re: [KERNEL ONLY] Power/Sleep FIX for JXD S7800B (RK3188-T)
« Reply #9 on: October 26, 2014, 05:31:12 pm »
i flashed and work. the power/sleep issue is gone but another issue comes. No original button mapper. Ill need to use tincore keymapper or something?

sandwich

Re: [KERNEL ONLY] Power/Sleep FIX for JXD S7800B (RK3188-T)
« Reply #10 on: October 26, 2014, 05:44:38 pm »
For emulations you don't need a visual mapper, you can always do it thorugh emulator options menu.
For other games, yes, Tincore.

RascaLRascaL

Re: [KERNEL ONLY] Power/Sleep FIX for JXD S7800B (RK3188-T)
« Reply #11 on: November 18, 2014, 07:17:20 pm »
Hi man. Thanks for sharing this. My s7800b has this Power/Sleep issue.
I've downloaded the tool you provided. But, when I try to flash the kernel, it says "MSC device can't do upgrade".
I do this:

1) Connect my s7800b to my computer.
2) I turn on USB storage.
3) I run the ROM_Flash_Tool_137
When the program starts, on the lower part it says "Found RKAndroid Mass Storage USB. Should it say anything different?
4) I only leave kernel selected.
5) Find the path to kernel.img
6) Click on Flash ROM.

Then I get the error message I told you about.

Am I missing something?

Thanks!!

sandwich

Re: [KERNEL ONLY] Power/Sleep FIX for JXD S7800B (RK3188-T)
« Reply #12 on: November 18, 2014, 10:19:40 pm »
Why is mass storage enable?, I think it shouldn't.
Steps to replace kernel are here described.

http://boards.dingoonity.org/jxd-devices/the-fixed-stock-kernels/msg115267/#msg115267

Anyway, I'd recommend to try Lujji's kernel

http://boards.dingoonity.org/jxd-devices/the-fixed-stock-kernels/msg115648/#msg115648

http://yaa.im/2fb9afbec58f009f
« Last Edit: November 18, 2014, 10:21:22 pm by sandwich »

GRiM (OP)

Re: [KERNEL ONLY] Power/Sleep FIX for JXD S7800B (RK3188-T)
« Reply #13 on: November 19, 2014, 04:06:22 am »
Hi man. Thanks for sharing this. My s7800b has this Power/Sleep issue.
I've downloaded the tool you provided. But, when I try to flash the kernel, it says "MSC device can't do upgrade".
I do this:

1) Connect my s7800b to my computer.
2) I turn on USB storage.
3) I run the ROM_Flash_Tool_137
When the program starts, on the lower part it says "Found RKAndroid Mass Storage USB. Should it say anything different?
4) I only leave kernel selected.
5) Find the path to kernel.img
6) Click on Flash ROM.

Then I get the error message I told you about.

Am I missing something?

Thanks!!


You dont use mass storage you use bootloader mode.

zhuo

Re: [KERNEL ONLY] Power/Sleep FIX for JXD S7800B (RK3188-T)
« Reply #14 on: November 22, 2014, 06:46:56 am »
Hi first post here, wanted to ask, I'm having trouble flashing just the kernel, it seems like an impossible task for me. Some background:

1. I'm using Win 8.1 so the RockUSB drivers were a huge problem. After much searching and tinkering, I managed to find a hack which allowed the RockUSB to function over USB3.0 in Win 8.1
2. With the hack, I managed to install the Prometheum firmware but like most people with RK3188-T, it developed the sleep bug
3. Tried this method to flash and it reads everything ok (I used bootloader, etc) and I triple checked all the settings and up to the point of flashing the kernel, everything reads ok.
4. However, when I try to flash the kernel, it always develops an error to download the kernel.

My question is, is this because I'm using Win 8.1 hacked usb drivers? The hack forces me to use ONLY USB3.0, I can't use my USB2.0 port and I'm wondering where the problem is. If there's any other way for me to flash the kernel, that would be great as well. Thanks in advance, appreciate any feedback from anyone