[Android Head-Units] sunnyy15:
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Hi kaween,

It’s a good news. Thanks for all your efforts to get me through. Refer to post #6643

My inability to solve the problem was due to “Bad or corrupt SD Card”. I had been thinking of buying a new SD Card but had no time to do so. But when my Instructor advised me to get a new SD Card, then I quickly realized how important this could be and I got it this time without delays to clear all doubts.

1. The first thing I did was to apply “Full Format” files from the new SD Card to clear all the mess from the system successfully. Note that this does not affect the Android Operating System 4.2.2.

2. Applied firmware version 2.8.8_TT_permroot files to give the system another refreshment.

3. Then using the steps described below, I rooted the system with “BaiduRoot” successfully. Note that “Root My AN-21 U” has never worked for me, neither did I succeed with “Root Master 2.11”.

Finally, I have one question about Android Kitkat. How can we possibly upgrade the Android 4.2.2 to 4.4.4? Is it necessary to update the system firmware version from 2.8.8 to version 2.9.4 before Kitkat can be installed? Where can we find compatible files for this? Can we use files from the following server to upgrade our systems to Kitkat? http://huifei.fs-fileserver.de/content/firmware/

http://xdaforums.com/showthread.php?t=2660662

http://xdaforums.com/wiki/OUKU_Unbranded

Regards,

Sunny.

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The unit specification is as follows:

Model: TH8681GA

Android 4.2.2 Cortex dual A9 core, 1Ghz

MCU version: 4.3.10.1-10-612101 (VW 4.3.10.1, CONFIG, RDS, BC6, Color, Rohm37xxx, TEF665X)

System version: 2.8.8

DVD version: 2.13.11-hd860mc

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FORMATTING & ROOTING WITH "BAIDUROOT"

1 - If there is need, wipe out and reset the system with any of the "Full Format" files as follows:

2 - Copy files into the SD Card, insert it the in SD slot, reboot or switch on system while holding down MENU + VOLUME button until "UPDATE" appears on the screen, then release and wait patiently till the system finishes & reboots automatically.

Note: If your system cannot update any files and frequently reports "Update Fails", then replace your SD Card for a new one. SD Cards are easily damaged or corrupted.

3 - Update the system firmware version with the "2.8.8_TT_permroot" files found in the folder "2.8.8 Patched Firmware Files" by following the instruction as given in step 2 above.

4 - Copy BaiduRoot from “Root apk's” folder to SD Card and install it in your system. Make sure your WIFI connection is working before starting the root operation.

5 - Open BaiduRoot, Click in ROOT (blue icon in the center of the screen) and restart the system after rooting.

6 - Download and install Root Checker, use it to confirm whether the system is rooted. If yes, proceed to step 7. If not, repeat the process in steps 5 and 6 until rooting is confirmed.

7 - Install CWM Superuser and update binaries. A window with Chinese words will appear. Press the right hand option.

8 - After you update the CWM binaries, Uninstall Baiduroot and delete all traces of Baiduroot because we do not understand Chinese and it keeps popping up multiple messages in Chinese.

9 - Reboot and enjoy!