Need Firmware For RK3026 PC Tablet - Forum

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Need Firmware For RK3026 PC Tablet

I bricked it while attempting to flash a rom.

SinTakai

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2014/12/06

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2014/12/08 - 20:00

Hello, I did a dumb thing and tried to flash a custom rom on my tablet ( http://tableta-ieftina.ro/tableta-pc-exclusiv-tab-704dc-7-dual-core-transport-gratuit/157.htm ) and now I bricked it. Can anyone give me a firmware/rom to install on it via RKTools?

Details:

Operating System	Android 4.2.2 Jelly Bean
Display	7”
Resolution	800x480 (XGA) 16:9
Touchscreen	Capacitive multitouch 5 points
Processor	Dual Core ARM Cortex A9, 1 GHz, Rockchip 3026
GPU	Dual Core Mali 400MP2, supports OPNEGL ES1.1/2.0
RAM Memory	512Mb DDR3
Internal Memory	4 GB
External Memory	Maximum: 32 GB Micro SD Card
Camera	Front – 0.3 Mp
Wifi	IEEE 802.11b/g/n
3G	Supports 3G dongle extern TD-SCDMA/WCDMA/EVDO
GPS	No
Light Sensor	Yes
Gravity Sensor	Yes, 3D-GSENSOR
USB	1x microUSB , supports OTG, Supports charging
Audio	Speakers 1W, 1x 3,5 mm jack
Microfone	Yes
Multitasking	Yes
Audio	MP2,MP3, WMA, OGG, AAC, FLAC, APE,WAV
Video	AVI, WMV, MP4, MKV, RM, RMVB,FLV, MPEG1/2/4 , MJPG , H263 ( 1280 × 720 ) , H264 ( 720 × 480 )
MS Office	Suports Word, Excel, PowerPoint
Adobe Flash	Adobe Flash Player 11.1
Applications	Android Market, Browser, Google Maps
Photo	JPEG, BMP, GIF, PNG, JPG
E-book	ANSI, UNICODE TXT, PDF, PDB, HTML, EPUB
Language	Englsih / 70 other languages
Charger	2200 mAh
Battery Life	4 Hours
Colours	White
Weight	300 g
Dimensions	191 x 109 x 10 mm
Accesories	Alimentator priză, cablu USB, cablu OTG, manual de utilizare în limba română

thewizard207

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2014/12/29

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2015/01/09 - 00:46

hi man, i got the same trouble... you could fix it?

SinTakai

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2014/12/06

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2015/01/10 - 17:38

thewizard207 said
hi man, i got the same trouble... you could fix it?

No, I couldn't. I found no stock firmware, kernels or anything for this device. The supplier publically humiliated me after I nicely asked them to provide a stock kernel or firmware so...

Oma7144

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Thanks Received: 1376

2015/01/10 - 20:16

Check out this build: http://www.arctablet.com/blog/forum/crewrktablets-rk3026-entwicklung-und-customroms-development-and-croms/rom-sumvision-cyclone-odyssey-7-android-4-4-2-kitkat-custom-root-firmware-20140622/

Change kernel http://crewrktablets.arctablet.com/?wpfb_dl=2373 in folder rockdev/Images before flash.

- Oma -

The following users say thank you to Oma7144 for this useful post:

SinTakai

Per aspera ad astra, we rock the Tablets !

If you like our firmwares, please consider making a donation to support our work.
Thank you!

SinTakai

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2014/12/06

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2015/01/10 - 22:54

Oma7144 said
Check out this build: http://www.arctablet.com/blog/forum/crewrktablets-rk3026-entwicklung-und-customroms-development-and-croms/rom-sumvision-cyclone-odyssey-7-android-4-4-2-kitkat-custom-root-firmware-20140622/

Change kernel http://crewrktablets.arctablet.com/?wpfb_dl=2373 in folder rockdev/Images before flash.

- Oma -

Oma, you are the Android God. Thank you so much for your help <3 I am forever in your debt

Edit#1: Everything works fine except the touchscreen, it seems to be inversed (Ex: I touch right side and device thinks it's left) also, rotation seems to be off (Rotation fixed with Gravity Calibration Unit)

Edit#2: Wi-FI doesn't work, power button doesn't make unlock screen appear after tablet screen goes dark. Anything I can do?

Oma7144

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2015/01/11 - 09:41

The kernel does not fit. Use an usb-mouse to go on.

Download a terminal emulator from Play Store. Boot tab fresh and try to enable Wifi a few times.

Open the terminal and type:

su
dmesg >/mnt/sdcard/dmesg.txt
logcat -d -v time >/mnt/sdcard/logcat.txt

The logs are now on your internal sdcard. Copy to PC, zip them and upload the file here.

- Oma -

Per aspera ad astra, we rock the Tablets !

If you like our firmwares, please consider making a donation to support our work.
Thank you!

Oma7144

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2015/01/11 - 11:17

Ok, found some hints that the tab is based on PCB ZM726C. So, same PCB as Chuwi V17pro.

Flash this build: http://www.arctablet.com/blog/forum/crewrktablets-rk3026-entwicklung-und-customroms-development-and-croms/rom-chuwi-v17pro-android-4-2-2-jelly-bean-custom-root-firmware-20140418/

And this kernel for 800x480 screen: http://crewrktablets.arctablet.com/?wpfb_dl=1874

- Oma -

Per aspera ad astra, we rock the Tablets !

If you like our firmwares, please consider making a donation to support our work.
Thank you!

SinTakai

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2015/01/11 - 13:40

Oma7144 said
Ok, found some hints that the tab is based on PCB ZM726C. So, same PCB as Chuwi V17pro.

Flash this build: http://www.arctablet.com/blog/forum/crewrktablets-rk3026-entwicklung-und-customroms-development-and-croms/rom-chuwi-v17pro-android-4-2-2-jelly-bean-custom-root-firmware-20140418/

And this kernel for 800x480 screen: http://crewrktablets.arctablet.com/?wpfb_dl=1874

- Oma -

Looks the same, except mine has a single camera. Gonna give it a spin and keep you updated. x) Also, I got the hang of the reversed touchscreen so I can operate it without a usb mouse. I'ma have some trouble downloading the terminal emulator from the store since wi-fi doesn't work but I think I can find a alternate apk to download from pc and move to SD

Edit#1: This one isn't good. Screen if off (about 0.5 cm to the left), touchscreen doens't seem to work at all, USB mouse doesn't work either (could be the mouse though, not sure, got nothing else to test it on xD ) Also, sometimes when it opens it gets stuck in bootloop (Titan > Oma, screen gets 'pixelated' > Titan >Oma >Repeat)

Oma7144

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2015/01/11 - 15:06

Ok, try this V17pro build with the manta kernel. Just to see if you get wifi.

- Oma -

Per aspera ad astra, we rock the Tablets !

If you like our firmwares, please consider making a donation to support our work.
Thank you!