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ClockworkMod (CWM) Recovery easy install for RK3066 and RK3188 -- TWRP/CWM Flash-Tool and root for RK3288

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[ ROM ] Cube U20GT Android 4.1 JB rooted firmware (from official version 2.00 dated 2012/11/24)
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admin

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2012/11/24 - 15:13
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Cube has just released an Android 4.1 Jelly Bean update for the Cube U20GT.

Cube U20GT official firmware version 2.00    U20GT_Android4.1_V2.00_20121124.zip (2012/11/24) 

 

Android 4.1 build: rk30sdk/rk30sdk/rk30sdk:4.1.1/JRO03H/20121108.105215:eng/release-keys

Linux Kernel: Linux version 3.0.8+ (root@ubuntu) (gcc version 4.4.3 (GCC) ) #505 SMP PREEMPT Thu Nov 22 23:18:14 PST 2012

 

This is a major upgrade to Android 4.1 Jelly Bean, Google Translation of Cube version history says this firmware changed the following:

Updated to Android 4.1 system;
aging game crashes to amend the part of the machine;
awakened not some machine screensavers.

 

Here is our custom rooted firmware version of the Android 4.1 JB based on official Cube version 2.00

Features:

- root with SuperSU version 0.96 (free version)

- writable /system partition

- removed most Chinese and unnecessary applications

- increased space for application (/data partition) to 2 Gb.

 

Rooted custom firmware for the CUBE U20GT: kasty-cube_u20gt-41-200-rooted.zip

Using Rockchip Batch Tool version 1.5 to flash the firmware.

 

Please report any problem with this firmware, I can't verify if this custom firmware works properly as I don't own a Cube U20GT  to test it.

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

S1eepy, andorman, palos, rostis72, xinjiangtour

If you like our web site, applications and firmwares, feel free to support our site. Donations are used to pay the bills for our server hosting costs, development tools and purchase new tablets to support.

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S1eepy
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2012/11/24 - 15:27
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Very fast and operative work, impressive!!!

The following users say thank you to S1eepy for this useful post:

palos
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benji
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2012/11/24 - 23:09
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Hi, thanks for this very good work.

i have a little problem, i can't download the official firmware on cube site. can someone explain me how?

thanks

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S1eepy
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2012/11/25 - 12:23
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@admin: Could you share stock 4.1 too? Thanks.


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admin

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2012/11/25 - 12:39
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I haven't kept it, I'll try to download it later.

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zcdroid
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2012/11/26 - 01:22
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Thanks a lot, I have installed your custom rooted firmware and everything is fine. Thank you!

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felixarch
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2012/11/27 - 15:00
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So far so good! txs a lot.

 

I've uninstall the 5 chinese apps that were still on the OS...  Can you tell me why you let them there ?  For chinese user i guess?

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raph07_08
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2012/11/28 - 00:36
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I tried to flash my Cube U20GT with Rockchip Batch Tool and this rooted firmware and impossible to flash (see screenshot below)

 

Anything I did wrong ?

rookchip.jpgImage Enlarger

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admin

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2012/11/28 - 00:42
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felixarch said
So far so good! txs a lot.

 

I've uninstall the 5 chinese apps that were still on the OS...  Can you tell me why you let them there ?  For chinese user i guess?

Not really, it's probably a miss during the apps cleanup when building the custom firmware. This is be corrected in next firmware release.

Cheers.

If you like our web site, applications and firmwares, feel free to support our site. Donations are used to pay the bills for our server hosting costs, development tools and purchase new tablets to support.

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admin

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2012/11/28 - 00:43
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raph07_08 said
I tried to flash my Cube U20GT with Rockchip Batch Tool and this rooted firmware and impossible to flash (see screenshot below)

 

Anything I did wrong ?


Was the square in green color when you started to flash the tablet ?

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raph07_08
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2012/11/28 - 00:46
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the square of connected device ?

 

no it was in pink

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raph07_08
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2012/12/01 - 11:23
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I finally succeeded in installing the firmware (I was not in download mode) !

 

The rooted rom works greats ! but the battery problem is still here (perhaps it's even worse).

 

When the battery is at 100%, If I activated wifi and launch an application ity takes about 4h30 to decrease from 100% to 45-40%

For me it's quite normal

 

But after that in less than 30 min it decreases from 45-40 to 15% !

 

Battery problem with cube u20gt ? calibration battery problem ? anyone else has this problem ?

Any idea what to do ?

 

Regards

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zcdroid
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2012/12/01 - 19:15
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raph, I have the same battery problem too. with 4.0.4. and Jelly Bean

 

I have noticed that g-sensor fails with the update. When I´m working for a long with the Cube g-sensor stops to work. If I let the tablet take a rest g-sensor works again. Maybe is not a problem with the update but I hadn't this problem before to install the new firmware.

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raph07_08
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2012/12/01 - 19:25
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zcdroid: I'm not sure to understand ... .did you use the 4.1 rooted update too ?  you had not the problem before ?

 

I just bought the tablet but it seems I also had the problem with 4.0.4. perhaps it's worse with 4.1 rooted

I think I will try to calibrate the battery ? (but I don't know how)

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zcdroid
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2012/12/02 - 13:43
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Yes, It is 4.1 rooted firmware, but I had also this problem before. My last firmware was 4.0.4 rooted from this page. I´ll try with another ROM and I´ll keep in updates.

 

I tought that was a cube problem but I had installed the two rooted firmwares from here. I had the same battery problem.

 

Let's see if I have the same problem with others ROMs.

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