[URZ0352] how to update to android 4.4.2

[mic13]

Hello,

recently I bought smartTV dongle URZ0352 with specification
-Rockchip RK3066 A9 @2x1,6GHz +4x Mali400
-mt5931sa & mt6622n
-1gb Gb ddr3
-4Gb nand flash
-1xHostUSB 1xmicroUSB OTG , 1xmicroUSB (for power) , MicroSD slot
-Android 4.2 kernel 3.0.36+, compilation rk30mtk-eng 4.22 JDQ39 eng.arron.20131118.181739test
-Cover is similar to J21 - with 2xWiFi antenna

I would like to update android to v4.4 and add CWM/TWRP

Regarding this I have some questions:
- how to make a full backup of rom to recover if device will be partially bricked?
- how to install CWM on this device
- which rom to choose to update to 4.4 - I see that J21 has more internal memory than mine
- how to change partitions size (with mtk6577 was a piece of cake here I don't know how to do it)

Thanks
mic

[mic13]

Hello,
I see that this thread was visited many times but without any answer.


I'll try to update it with some things I was able to do at this moment:

>> - how to change partitions size (with mtk6577 was a piece of cake here I don't know how to do it)
Still I didn't change the partition size but I was able to add some memory for my applications. I just changed the mounting points for Internal memory & sd card in vold.fstab

To do this I had to root my device using commands and applications from first post on

http://forum.xda-developers.com/showthread.php?t=2102600

but uploading binaries from this

http://forum.xda-developers.com/showthread.php?t=2363342

Unfortunately CWM from that post was not working. When updating on my device it was just rebooting to factory defaults

But as it was written "USE IT AT YOUR OWN RISK"... it's connected with all modiications