yashsingh1/xdaforums huggingface dataset:
[Android Q&A, Help & Troubleshooting] Cass1977:
rk3026 kernel source

Ive found the kernel source code for the rk3026. There is only 1 link on github

https://github.com/peterzhu0503/kernel_rk3026

Ive also found the rk3026 (rk3028?) loader (at last) v2.05

http://www.arctablet.com/blog/downloads/firmware/Rockchip/bootloader/RK3028ALoader%28L%29_V2.05.bin

Ive got a kernel but ive had no luck building cwm with it. Ive been trying the no-kernel version like i did on my rk3188 but no luck so far. The rockchip site says the rk3026 is pin-to-pin compatible with the rk2926 but I tried the cwm for that and no luck. Im thinking kernels arent an issue, its the CWM itself thats the issue. I havent looked at the code for cwm but I think that will be our starting point if we want to get it running.

Not sure what to try next. I was thinking of trying either the rk3188 or rk3066 cwms. My thinking is that RockChip say the rk3188 and rk3026 will get KitKat. That makes me think there is something in common between these devices, However, the 3026 is a dual core so may need a mix of the 2? Im guessing a cwm for the 3028 would work but there isnt one :(

Just out of interest, has anyone tried TWRP? I know its no CWM but if it works then were a lot better off than the stock recovery.

Hope this helps. Let me know your thoughts
[Android Q&A, Help & Troubleshooting] Cass1977:
I dont suppose you have a copy of your boot.img? or stock firmware maybe? anything that the touch screen works with. If you know the driver that would be really helpful
[Android Q&A, Help & Troubleshooting] poffsoft:
files

Here is my files

Normally the touch screen works (in android), just in recovery mode doesn't.

According the freaktabs thread :

seems the touch screen is device2, if help something.

Another question: if my kernel.img is not valid kernel, can you extract it from boot.img or the system.ext4.tar, and make a valid kernel.img for r70dc,( then may i can use the generic /and abdul_pt modified because mount points/ twrp)?...
[Android Q&A, Help & Troubleshooting] Cass1977:
Ill take a look at your files and see what I can do

Im unsure what you mean here. You supplied a kernel.img along with the other files. Does this one not work?

Also, how did abdul modify the mount points? they worked fine on my device with TWRP, do you mean he modified them with CWM?
[Android Q&A, Help & Troubleshooting] poffsoft:
The files are the original "stock" files from my device, untouched. The tab in normal mode is working, but when boot to recovery, the touch screen doesn't recognise anything, so the recovery (twrp) useless for me.

Somewhere abdul said, that may this kernel.img not a valid kernel, that because the generic twrp doesn't work.

The mount points i've just thought: the original generic recovery (CWM) was unusable, because "cannot mount" errors.

abdul modified it, the files on googledrive are that (TWPR and CWM), cwm is "acceptable" wit cosmetic problems, but twrp not working...

Sorry but i dont know so much on android programming...

:o
[Android Q&A, Help & Troubleshooting] Pandemic17:
rk3026

Still cannot resolve the issue with this miracle need help !!! Here is the complete information Pulwin model:P6200D processor:Rockchip RK3026 RAM:512 MB Memory:16GB WiFi:Realtek RTL8188ETV Display:LJD700B001A-1.1/60Pin Sensor:HF-HK70DR20 0V01 FF20131119 memory Chip:Toshiba TC58TEG5DCJTA00 of RAM 2 pieces(the same):PE937-15E F1332 And two cameras on the same train: > KJT-S6811 V1 and still last a chip on this Board controller sensor:ZET6251WMA . Well, nothing more to say about it all cost rummaged are only 6 chips . If anyone knows can at least most appropriate options to find the firmware will be very grateful for help !!! :yes2: About screen he is a master said that he decided to update any firmware and then the screen turned white . Sorry to work through an interpreter . On Russian sites about anything not at all !
[Android Q&A, Help & Troubleshooting] Cass1977:
Im not familiar with that tab. How did you get that information about the chips? Have you had it open? If you have id love to see some pics. What exactly is the problem your having?

Sorry, im being a bit slow at the minute. I bricked my daughters 3026 so havent had one to play with. Ive got her a new one that comes tomorrow so ill be a bit busy setting them up. Will prove very useful for testing the TERP and our ROM on a different tablet though.

This is what im getting cheap and chereful http://cgi.ebay.co.uk/ws/eBayISAPI.dll?ViewItem&item=371054592515
[Android Q&A, Help & Troubleshooting] Pandemic17:
rk3026

Sorry Cass1977 so long you answer ! I opened to see the index chips , thought that this information will be useful . The reason is that the owner has failed to repair after an unsuccessful update display became white . On Russian sites have recommended the firmware Cube U25GT2H . Downloaded established through Rockchip_Batch_Tool_v1.7 . Appeared display but shifted and in the Chinese language , the sensor is silent . But this is after 100 I tried firmware and everywhere display was white ! This firmware also took 7" Inch Rockchip RK3026 Dual Core Android Tablet PC 4.2 4GB Dual Camera White UK the result is the same display white . Here are the photos

http://dl-1.va.us.xda-developers.co....jpg?key=rikc2gA6ZFlpgJezsEmiMw&ts=1399664916

http://dl-1.va.us.xda-developers.co....jpg?key=jEYkdw_KI11g3fPVealeCQ&ts=1399665007

http://dl-1.va.us.xda-developers.co....jpg?key=GqytwOxnRNkTGMIaSrGKQw&ts=1399665047

http://dl-1.va.us.xda-developers.co....jpg?key=dY0_YMqlSTAqNWRZkLHIAg&ts=1399665082
[Android Q&A, Help & Troubleshooting] Cass1977:
WOW! ANOTHER different board! I havent seen 2 devices using the same mainboards yet for these. This is the problem with these devices. They are very new and use a lot of different hardware. This makes developing a 'one size fits all' solution is virtually impossible.

Your issue may be solvable. Have you been able to connect to the rkDeveloperTool? The one that allows you to flash individual partitions. This way we can start with flashing the bootloader and a parameter file, then the boot. This is where the issue will arrise. If we dont have a working kernel then were stuck! That is the most important part of the system, without it nothing will work. Im guessing thats the issue your having. The trouble is that your board isnt one covered with the available source code.

Can you contact your supplier for the origional firmware? thats the best place to start as they should have it. Let us know how you get on
[Android Q&A, Help & Troubleshooting] Pandemic17:
rk3026

Cass1977

Hi Cass1977 ! The program downloaded RKDevelopTool_v1.35 but do not know where to get "Loader" and "Boot" and "Parameter ? If you know skinte link please !!! The program RKDevelopTool_v1.35 without these files have an error "No device found for upgrading" . When you click "Switch" swears that is already included . In the program Rockchip_Batch_Tool_v1.7 unit green . I'm not a wizard, but I understand a little . Know how to flash the Nokia and Sony Ericsson . Official website contacted said to wait a week ! At first said that it is possible not our brand !!! Oh forgot photo
[Android Q&A, Help & Troubleshooting] poffsoft:
O.K, please post it if something news found for me then :)
[Android Q&A, Help & Troubleshooting] freibergisch:
[MENTION=267558]Cass[/MENTION]:

Is the new tablet of thy daughter arrived? :) Tell us more about it :)
[Android Q&A, Help & Troubleshooting] impulse2000:
Another tablet on RK3026 in super-brick-white-screen mode ))).

GT-N9000.

Contains:

CPU - Rockchip RK3026;

RAM - 512 MB (Elixir, N2CB4G16BP-DI, 256M x 16, DDR3-1600, 1.5V);

FLASH - 8 GB (Micron, 29F64G08CBAAA);

TOUCHSCREEN - CZY6439A01-FPC (2013-04-23);

TOUCH control - ZEITEC ZET6223WTA;

Wi-Fi - REALTEK RTL8188ETV;

dual cam module - XHB-G5G 5FZ2963G;

LCD - 9" TFT LED, RXS L900D50-B, LDB17202H-B2-B 13 11 24;

АКБ - CL 387889PL (3.7V, 3000 mAh);

Spec devices - specdevice.com/showspec.php?id=80ca-5d76-0033-c5870033c587
[Android Q&A, Help & Troubleshooting] dawkon13:
This Android 4.4.2 KitKat is booting but i have problem with resolution :

http://www.arctablet.com/blog/forum...d-4-4-2-kitkat-custom-root-firmware-20140517/

USB keyboard working, touchscreen not working, when tablet is locked sometimes screen is flickering

Charging PROBABLY not working (or/and battery indicator- on Stock 4.2.2 battery has 58%) :/

What working?

I don't know, because... (Look at the picture below)

I have Modecom Freetab 2096+ X2

Specs:

Vido N70S has 1024 x 600

Who can do it? :)

_________________________________________________

4.2.2 Firmware from Freetab 2096+ X2:

http://freetab.eu/softy/ENG/Tablets...1/PL/Firmware_2096_android_4.2.2_wersja_1.zip
[Android Q&A, Help & Troubleshooting] freibergisch:
There are now some rk3026 roms with android 4.4 by crewrktablets. We are still in testing phase for my Odys device. But instead of wifi and bt, all is working well.. :) so i think, there will be a larger list of supportet tabs in near future :)

Gesendet von meinem CONNECT mit Tapatalk
[Android Q&A, Help & Troubleshooting] slysnake96:
Please help?

Hi Again XDA :highfive: ... I would appreciate it very much if anybody here could help me with some simple noob friendly instructions on how to install Generic CWM for rk2926/rk2928 i am having difficulties doing so (description at end) and also could i please get some instructions also again noob friendly on how i can install a custom rom for my,

Audiosonic 7" T-17B Tablet running rk2926, (bought at a K-Mart store here in Australia, if that helps?)

Model number: T-17B

Android: v4.1.1

Kernel version: 3.0.36+

EM2926-738a@V01M#313

Mon Dec 31 22:52:46 CST 2012

Build number: RK292X_ANDROID4.1.1-SDK-v1.00.00

rk2926sdk-eng 4.1.1_20121226

I would appreciate all possible help very much .... :confused: I have tried to install the Generic CWM for rk2926/rk2928 and Multiple Different Custom Rom's and tried installing them from .zip, .img and even tried to Sideload them through ADB ... But to no avail :confused:

PLEASE HELP?:confused:

Many Thanks In Advance :fingers-crossed:

----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------

:p1x, Rooted Audiosonic 7" T-17B Tablet rk2926 Stock ROM ... 1x, Rooted LG Optimus L3 E-400f running CM9-Nightly Custom ROM ... 1x, Rooted LG Optimus L3 E-400f Stock ROM:p
[Android Q&A, Help & Troubleshooting] freibergisch:
Your device is rooted, so search for flash_image binary and type in terminal: flash_image recovery cwm.img (or your cwm image name).. Are you able to boot in the cwm recovery? I dont know if there are roms for your tablet in cwm flashable zip format.. Mostly there are no roms for rk devices in zip files.. There are flash tools for pc, and your tab needs to be in bootloader mode. Then you can flash roms, recoveries, ...

Gesendet von meinem CONNECT mit Tapatalk
[Android Q&A, Help & Troubleshooting] slysnake96:
answer

i cant find a cwm image file for my device all i found was something here on XDA and it was a generic cwm recovery zip for

rk2926

/2928 devices but whenever i try to load it through ROMManager and enter cwm recovery mode i just get android man lying down with exclamation without anything happening for ever i then have to reset my device manually ... the Last time i tried to put one of the exact same make model etc. tablets into bootloader mode it completely deep bricked without me doing anything ...

also please quote me next time so as i know that i have a reply ... thanks.
[Android Q&A, Help & Troubleshooting] fnsnet:
trying to follow

Hey folks! I have been trying to flash two RK3026's for the last two days - I've been bouncing between this forum and TWRP with no success. I tried TWRP first, but could never get the batch file from the generic to recognize an ADB connection. I tried AndroidTool, but all that has done is leave me stuck in Recovery. I have the RC Batch Tool, and even that hasn't been able to revive the tabs even back to stock. I was dumb and didn't get a backup of the tabs prior to attempting this, and the site hosting the stock image has a dead link. (Not allowed to post links...)

www rockchipfirmware.com node 259

^ put the obvious slashes back. The "update.zip" link is dead.

The only thing I can muster is a flash of "roverpad" in stylized writing for a moment during normal-boot.

Where did this process end?

Matt
[Android Q&A, Help & Troubleshooting] ftorga:
i build custom recovery for rk2928

you need

Unpack the Stock recovery with "RK3xxx_firmware_tools_4.2.22.0"
Unpack attach, and copy zimage for you recovery to custom
build.
flash with RKDevelopTool_v1.37, selected only recovery part

if you have recovery.img i try to build cwm recovery for you.

don´t flash any recovery before get stock recovery.img

sorry for my english
[Android Q&A, Help & Troubleshooting] zdig1:
there is many manufucture in taiwan and china doing those tbalet

many tierce inc are buying rk3026 on under other name like archos etc ...

for example from a couple month i bought a rk3026 MD706B 8Go / 1 go ram

and have many compatilbité probleme

after rooting and with some update like with aptoide and integrating them to the rom with link2sd

it resolved some pb and improved benchkmark

the most important is how google+, chrome and hangout are not working

all those application are made by google (like android)

when i told to the bye he telle me that the taiwan inc are wokring in a 4.4.2 rom

(also autodesk360 are not wkoring )

any way now have the new update of hangout working

but to use google+ i have to install v 3.6.1 all v4.xx are not wokring ( even the last week update)

do you have the same pb

any solution ?
[Android Q&A, Help & Troubleshooting] zdig1:
hi it is again me :)

in fact i want to share you some app that i think a must have in any andoird device

but with google paly store we have ' this app cannot be installed due to incompatibility"

i think the pb is not from the rk3026 but from the os 4.2.2 version

so you can find many of those app on

zdig.store.aptoide.com
[Android Q&A, Help & Troubleshooting] HypoTurtle:
[MENTION=5556677]Cass1977[/MENTION]

Have you managed to unbrick your 3026 (/3028A).

Was gonna post initially to ask for help unbricking mine, but have managed somehow to get mine running again.

If your is a brick I may be able to help.

One thing I would like to ask is do you know anything about how the kernel loaded in the kernel partition differs from that in the boot.img?

Other than the KRNL header is there any difference... My kernel partition was empty (or full depending on you persuasion with FF's). I've flashed the kernel partition with my kernel but device won't boot with a boot.img that doesn't have a kernel bundled in, not a major issue, was just gonna try and compile some kernels, and it would be easier to test if flashing kernel partition worked.
[Android Q&A, Help & Troubleshooting] Vohukain:
Need help to indentify my tablet

Hi!

I got this new 7'' tablet for free but I don't have proper information of it. This is everything what I know about it and I got this information by AnTuTu (score 8875):

-Brand: Rockchip

-Model: Q8

-Android: 4.2.2 (SDK: 17)

-Kernel: Linux version 3.0.36+ (lijian@ibm-0A) (gcc version 4.6.x-google 20120106 (prerelease) (GCC)) #69 SMP PREEEMPT Thu Jan 16 15:50:05 HKT 2014

-Number of the version of the software: rk3026-eng 4.2.2 JDQ39 eng.lijian.20140107.155201 test-keys

-CPU Model: Rockchips Cortex-A9 (Dual Core, freq: 312-1008MHz)

-Renderer: Mali-400 MP

-Resolution: 800x480

-Rear and front camera: 1,9 MP (1600x1200) and 0,3 MP (640x480)

-Ram: 512MB

-System storage: 0,98GB

-Internal storage: 1,90GB

-GPU version: OpenGL ES 2.0

Also I got some manual but there was only "MID Android". Tablet looks like THIS.

I'm hoping to find a custom rom for better performance for my device because it is little bit too slow and lag. So far I have only used CWM and ODIN with s5360 and s5660 devices so I don't know how to use different root tools. I would be very happy if someone could make a tutorial for rk3026 devices or post some helping links so I can get started on my on.

I have tried to make dumpROM so that I could make a backup rom if something goes wrong but I couldn't make it with this guide. I'm stuck at the last step. When I type /data/rkdump /dev/block/mtdblock5 /sdcard/update.img it says something like unknown destination.

I have also tried to install TWRP (rk3026, 800x480) with this guide. Only problem is that recovery installer script doesn't work for me. It give me this:

Pushing files

3365 KB/s (something)

3485KB/s (something)

Flashing

/system/bin/sh: /system/bin/sh: - : unknow option

/system/bin/sh: /system/bin/sh: - : unknow option

Disabling install-recovery.sh

/system/bin/sh: /system/bin/sh: - : unknow option

Cleaning

/system/bin/sh: /system/bin/sh: - : unknow option

/system/bin/sh: /system/bin/sh: - : unknow option

All done

I haven't have enought courage to install recovery.img with RkAndroidTool or RkBatchTool because I don't have backup. I have tried to install recovery.img also by manually with adb but I guess I don't have proper bootloader mode drivers.

Edit: Can we flash THIS rom for all rk3026 devices? iFive 100 tablet has different resolution than my tablet.

Ps. Sorry my bad english, I'm from Finland.
[Android Q&A, Help & Troubleshooting] HypoTurtle:
I'd say you have a Q8 (based on lijian in kernel version).

Before doing any flashing I would:

1. Create a backup using RkAndroidTool

2. Get a dmesg from you're running device - to check the device layout

3. For adb - download SuperOneClick (then open a cmd prompt in SuperOneClick/ADB (hold shift and right click in Windows) )

4. ROMwise, you might be better trying this, there's a q8 kernel here, but you'd be better taking one from you're device (kernel partition or from boot.img)
[Android Q&A, Help & Troubleshooting] Vohukain:
Thanks for your reply. Is this only way how I can make a backup with RkAndroidTool? I have already read it but I don't understand it.

Also I'm not familar with adb so I don't know how to "get a dmesg from you're running device" or how to take kernel from "kernel partition or from boot.img". I would be very happy if you could post guide link for me.
[Android Q&A, Help & Troubleshooting] HypoTurtle:
I don't think I had too much joy with that guide. For backup the easiest thing would be to dump everything in one block - there's a program rkDumpSlicer.exe that splits it into the individual partitions. In AndroidTool => Advanced Functions => in start put 0 => in end put the last block number (if you can't find it putting in a very large number should also work) => Export Image.

Do you have root? For the dmesg it would be "adb shell dmesg > dmesg.txt", but all we need is the cmdline (found at /proc/cmdline) - "adb shell cat /proc/cmdline". Alternatively you can pull the first few blocks (say ~100) using AndroidTool and split it with rkDumpSlicer.exe to get the parameter file (partition layout). If you have root you could alternatively use a dump_image binary to pull the kernel and/or boot partition.
[Android Q&A, Help & Troubleshooting] Vohukain:
Thanks again! I will try to make backup from ROMdump. Then I guess I can try to install custom recovery. But I haven't find any custom rom for my device. Do you know any place I could try to find a rom?
[Android Q&A, Help & Troubleshooting] HypoTurtle:
The roverpad one I posted earlier (http://crewrktablets.arctablet.com/?p=3443) would be your best bet (replacing the kernel.img with the q8 one).

Just FYI. the kernel partition on mine was empty and flashing it with a kernel wouldn't work, I had to inject my kernel into the boot.img and recovery.img for them to work using imgRePackerRK.exe
[Android Q&A, Help & Troubleshooting] Vohukain:
Drivers missing

Do you know where I can find the right one fastboot/bootloader drivers. ADB is working great but when I boot my tablet to fastboot mode device is not listed (when I type: fastboot devices).
[Android Q&A, Help & Troubleshooting] HypoTurtle:
I don't think there are any fastboot drivers for rockchip, the nearest think is the rk drivers - bundled with every ROM I've downloaded thus far - which shows the tablet as a loader device in AndroidTool. (which is essentially fastboot without the cmd interface). (or in mask mode when the bootloader/NAND has been scrubbed).
[Android Q&A, Help & Troubleshooting] Vohukain:
Flashing problem

In think fastboot option is gone then. How can I flash twrp recovery.img then?
[Android Q&A, Help & Troubleshooting] HypoTurtle:
In AndroidTool while in loader mode or use flash_image from a rooted ROM.
[Android Q&A, Help & Troubleshooting] Vohukain:
Many thanks HypoTurtle! I have now rooted my tablet, managed to install TWRP and I also made backup! Only thing missing now is better ROM. Can you suggest any custom rom for rk3026 (800x480)?

Edit1: BIG TROUBLE! I tried to flash custom rom made by Cass1977 but I ended up to a bootloop. I tried to restore my backup which I made earlier. When I click restore via TWRP I get no error but when I press "reboot system" after restore TWRP say that "no os isntalled". If I press reboot I end up to a bootloop. Is there something wrong with my backup

Edit2: Damn! Now I managed to brick it totally. I tried to flash that Rom what you posted with kernel included in the zip but now my tablet is no responding to anything. I cant access to the recovery anymore and RkAndroidTool does not regonize my tablet. Anything to do?

Edit3: Okey there is still little hope. Now I get my tablet to do something. When I plug it in with usb cable windows start to make that "dunduh" sound over and over again. Windows say that it can't identify davice because it is in the "safe mode". I don't know if the "safe mode" is the right term because I'm finnish and my pc use finnish language. In finnish it is "vikasietotila". "Vika" means "failure", "sieto" means something like "tolerance" and "tila" is "mode".

Edit4: Geat news! I really don't know what I just did but I got my tablet back to this world. (I tried something like this). I still get a bootloop but I can acccess TWRP again! I'm in the same situation like in the "edit1". Any help?
[Android Q&A, Help & Troubleshooting] sls13:
Help Me!

Hi, i have an mt-700 liife, is a tablet with rk3026 and kitkat.

I want to do the root permission but, don't work any software in the pc and the stock recovery can't flash anything.

How i do root? Please i'm be going to be crazy! I tryed and tryed to do root in this damned tablet!
[Android Q&A, Help & Troubleshooting] Vohukain:
You can root your device using Vroot but that is chinese software and dodgy. Better if you find some other rooting method but that is one possibilty. What kernel do you have?

And back to my case:

Now I have pushed boot.img and system.img from ROM made byCass to my tablet with kernel named "RK3026 Kernel 3036 Q8" form crewrktablets. I still get bootloop but TWRP works and RkAndroidTool. I have tried with two other kernels also, RK3026 Kernel 3026 Mid7 Acho and kernel form this ROM. Those both kernels end up to a very bad thing and I almost lost my tablet 4ever!

I have also checked my backup which I made with TWRP. When I compare the files sizes I notice that "system.ext2" file is very small only 1kt but every other files are bigger, for example "recovery.mtd" 32Mt, "boot.mtd" 16Mt. I guess something went wrong when I made backup :(.

My hope is that if I find working kernel for my tablet I can flash Cass1977 boot.img and system.img with that kernel.img. Can you guys help me with that?
[Android Q&A, Help & Troubleshooting] HypoTurtle:
You didn't backup with AndroidTool then I take it... Can you post the boot.mtd and the recovery.mtd and I'll see if there's a kernel in one of them...

Do you have a parameter file? Did you try and install via TWRP or AndroidTool?
[Android Q&A, Help & Troubleshooting] sls13:
i've the kernel 3.0.36+

xiaosh@ychip-super #36

Fri Apr 11 11:14:46 CST 2014

I've ubuntu, but the adb don't recognize my tablet