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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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Cube U30GT doesn't start, disassambling to unbrick the tablet
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AzzyG
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2012/12/26 - 05:36
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There just seem to be little incompatibilities that arent making this easy - lol.

Like you have a devices heading and i dont have one and depending on which way i do things on my pc and on the tablet, i get different results in terms of whether i get a green light on RK etc etc.   Grrrrrrr

Do you think you would have the patience and time to lead me through a step by step if i tel you exactly what is going on this side on the tablet etc?   Maybe using a conversation tool that is more immediate like Skype?  I realize its asking a lot and I wont be the least bit offended if you decline.

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AzzyG
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2012/12/26 - 05:41
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if that is OK - i just created a new skype account called u30gt-h.

I would suggest you create a new one too for anonymity etc

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Proximo
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2012/12/29 - 20:11
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When mine was bricked and showing only the dead android bot with the red exclamation, I pressed both the VOLUME UP and the POWER buttons together repeatedly many many times, then I got the recovery menu and flashed from the SD card.  It did a flash then rebooted to a blank white screen.  Then I was able to flash to v1.10 from Rockchip Flash Tool 1.5, and success!!!  It's all good, and I have new great features.  ThanX all!!!

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

rohshall
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ayger
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2013/01/08 - 12:37
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Hi,

 

Just to add my experience concerning unbricking my new u30gt.

 

First of all, i managed to brick my tablet while i was trying to revert it from U30GT-H_v1.03_20120815(Win8 Metro) firmware to a normal android one (like 1.10 or 1.11). 

 

While i was trying to upgrade/restore the firmware, i had the same symptoms, dead android, only access to recovery menu, etc etc. Tried everything (download failed on Rockchip software, IDB failures and so on).Managed to restore 1.10 firmware but uppon boot up a white screen was shown.

Afterwards  i had the brilliant idea to update the firmware through SD card and recovery menu.

 

That was it. The tablet went dead.Totally. No response to power buttons (+Vol), no blink, no flash, no anything.No response.Totally FUBAR'd.

I followed exactly the instructions here, and trying for 6 hours to unbrick my tablet. Totally dissapointed
i left it -by mistake- on DC adaptor overnight and dissasemdled. 

Today before throwing out to the garbage bin, i thought my self "Let's give it a last chance" having in mind that i wouldn't spend any more than a minute with this issue.It was "restore now or go dead".

And voila.By touching the reset contacts and hitting gently the power button, usb device connected, blue icon on software, restore, green icon, restore again and yes we are back in bussiness!!!

Thank you all.Just saved me 230E. 

A.


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rcck8127
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2013/01/09 - 21:28
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Thanks to venz0ja and unreal for staying on the issue.

I encountered the same fate while trying to root my U30GT-H.  The tablet went into black screen upon power up.  And Vol up + Power would bring up the dead Android.

Going by venz0ja's finding on steps to perform upon seeing the dead Android, I was not able to get to the internal menu but doing short pressing on Vol up + Power.  However, Power + Vol Up did the trick.  That is, I held down Power then Vol Up.

I then proceeded to perform "factory reset" with all user data wipe option.  Then "Restart" from the internal menu.

Hope this helps.

Cheers!

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kisist1
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2013/01/12 - 11:58
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venz0ja said

 for open cube u30gt use T2 

...

...

Hi! I have one big problem. :(

I was updating my UG802 "TV Box" and I forgot to unplug my Cube U30GT, and the Rockchip Batch Tool flashed the UG802 rom on the Cube U30GT also!
I tried this reset function, but it seems it's not working. ;( Is it might not work because the battery might be discharged? I measured the batteries at the soldering point, and its 7.45V.
I tried to reset with the method above, and also tried to short the soldering points at the reset point (at the side of the PCB), and I tried to short both of them at the same time.
My PCB version is V14. Is it might need a different method?
I plug the USB in, and I try the reset after that. Its correct right?
What should I do to solve this problem? Please help! I'm kinda handy man, so I can try harder methods also.
Thank you in advance!

 

EDIT:

Problem solved. All I missed is to push the power button while short the reset :)

I installed the latest V1.11 (Cube U30GT-H V1.11)
you can download it from here (google dtrive):
https://docs.google.com/folder/d/0B3QeLWRixE4vak1UNVk3czZ2TDQ/edit

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neildove32
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2013/04/30 - 19:05
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my tablet has the power switch broken off ,i have tried to resolder it back but it wont come on , tried holding power and vol+ and that doesnot work , tried unbricking what ever that is , connecting tablet to the windows pc via usb cable  and pressing  power while shorting the two contacts  still nothing . i have charged it so help please.

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dlmosca
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2013/07/29 - 11:00
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Hello I have my Cube U30GT-H Bricked.

If I plug the ac adapter nothing appens.

When I plug the usb cable in the usb port automatically (without press Power+Vol.up) the Tablet is recognized and the Rockchipo batch tools show a green square I load the firmware path and I press upgrade but I read this:

10:20:39 937 Rockchip Batch Tool v1.5.3.0 start run
10:20:49 734 **********Upgrade Start Total<1>**********
10:20:49 734 <Layer 5-1> Test Device Start
10:20:49 734 <Layer 5-1> Test Device Success
10:20:49 734 <Layer 5-1> Check Chip Start
10:20:49 734 <Layer 5-1> Check Chip Success
10:20:49 734 <Layer 5-1> Get FlashInfo Start
10:20:49 734 <LAYER 5-1> INFO:FlashInfo: 0 0 0 1 0 1 10 0 28 0 5
10:20:49 750 <Layer 5-1> Get FlashInfo Success
10:20:49 750 <Layer 5-1> Prepare IDB Start
10:20:49 750 <LAYER 5-1> INFO:CS(1) (8192MB) (SAMSUNG)
10:20:49 750 <LAYER 5-1> INFO:CS(3) (8192MB) (SAMSUNG)
10:21:13 828 <LAYER 5-1> ERROR:FindIDBlock-->RKU_ReadSector failed,RetCode(-3)
10:21:13 828 <LAYER 5-1> INFO:FindBackupBuffer-->No Found Tag
10:21:37 890 <LAYER 5-1> ERROR:FindBackupBuffer-->RKU_ReadSector failed,RetCode(-3)
10:21:37 890 <LAYER 5-1> INFO:FindBackupBuffer-->No Found Tag
10:22:01 937 <LAYER 5-1> ERROR:FindBackupBuffer-->RKU_ReadSector failed,RetCode(-3)
10:22:01 937 <LAYER 5-1> INFO:FindBackupBuffer-->No Found Tag
10:22:01 937 <LAYER 5-1> ERROR:PrepareIDB-->Loader-->No Found IDB
10:22:01 953 <Layer 5-1> Prepare IDB Fail
10:22:01 953 **********Upgrade Done Success<0> Fail<1> Time<72218>ms**********

 

I have disasembled the tablet to shortcut the 2 notch but nothing happen.

I have tryed on sever pc with Windows XP - 7 and 8 but I have always the same result.

Any suggestion?

Thanks

Domenico

 

P.S.: I have tryed to use the restore button on rockchip batch tools and I Have this result:

10:44:03 500 **********Restore Start Total<1>**********
10:44:03 500 <Layer 5-1> Test Device Start
10:44:03 500 <Layer 5-1> Test Device Success
10:44:03 500 <Layer 5-1> Lowerformat Device Start
10:44:05 500 <Layer 5-1> Lowerformat Device Success
10:44:05 515 <Layer 5-1> Test Device Start
10:44:05 515 <Layer 5-1> Test Device Success
10:44:05 515 <Layer 5-1> Check Chip Start
10:44:05 515 <Layer 5-1> Check Chip Success
10:44:05 515 <Layer 5-1> Get FlashInfo Start
10:44:05 515 <LAYER 5-1> INFO:FlashInfo: 0 0 0 1 0 1 10 0 28 0 5
10:44:05 515 <Layer 5-1> Get FlashInfo Success
10:44:05 515 <Layer 5-1> Prepare IDB Start
10:44:05 515 <LAYER 5-1> INFO:CS(1) (8192MB) (SAMSUNG)
10:44:05 515 <LAYER 5-1> INFO:CS(3) (8192MB) (SAMSUNG)
10:44:05 671 <LAYER 5-1> INFO:FindBackupBuffer-->No Found Tag
10:44:05 671 <LAYER 5-1> INFO:FindBackupBuffer-->No Found Tag
10:44:05 671 <LAYER 5-1> INFO:FindBackupBuffer-->No Found Tag
10:44:05 671 <LAYER 5-1> INFO:FindBackupBuffer-->No Found Tag
10:44:05 687 <LAYER 5-1> INFO:FindBackupBuffer-->No Found Tag
10:44:05 687 <LAYER 5-1> ERROR:PrepareIDB-->Loader-->No Found IDB
10:44:05 687 <Layer 5-1> Prepare IDB Fail
10:44:05 687 **********Restore Done Success<0> Fail<1> Time<2188>ms**********

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globula_neagra
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yulden
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2013/09/13 - 23:46
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Hi ,I have Cube U30GTH worked,then not charged for more than a month (because of the broken charger connector) and after purchasing the new charger,the tablet do not want to turn on !

I flashed it with Rockchip  Batch Tool twice with different firmware including disassembling and restoring the boot ROM (dark blue square)...still no response from device after pressing the Power button.

The question is ,if the batteries died ,can it started without them just on charger or its more likely ROM problem??

 

Thanks in advance for any of you to response to this.

 

 

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cappybob
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2013/10/02 - 18:34
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Brick mine every day (u30GTH dual core).  Found a fix for my shut downs, maybe will work for those who wish to play.  RockchipTools come in rk cpu compliant and (2) loading factors.  My Cube Rk30 so I use RKTools Versions 1.5 or 1.35.  If you have bricked it you already have the proper usb drivers which are the same for both RKTool versions.  V1.5 is an UPDATE.img and V1.35 is the BUILD.imgs (kernels and etc.).  So when I brick a build, I go to RKTools V1.5 UPDATE.img, such as the original or for my use choice is Kasty. 

1) unzip you update.img file and load into RKTools V1.5 per instructions 

2) connect to RKTools V1.5 through normal 2button and usb process

3)  Let the loader do its magic, after boot up erase the previous zips on external storage

4) you should be ready to try again now

 

Remember it is not yours until you break it.

 

 

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cappybob
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2013/10/02 - 18:50
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Yulden, bad news, Li-ion batteries are creatures form hell.  They burn, get tendrals, and if they loose their memory they die.  Your case the drain from the battery has drained its brain and might be saved if you can get it to recognize the charger, if not, the battery is gone and will need to be replaced.  Sorry, but I play with Li-ions all the time, if they go completely down to no charge and won't charge I trash them.  The software installed in the Cube will go into shut down at 15% charge, but has to be recharged if left for extended period at this low level, death will occur.

 

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yulden
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2013/10/08 - 14:19
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Thanks for reply ,Cappybob (happy that somebody responded).Just wanted to update that eventually I managed to boost my batteries to life by connecting charger contacts directly to batteries connectors on motherboard itself ,than figure it out that i was trying to charge (in regular way) with new 5V charger and not 12V like I should. At the end my Cube is working even better than before (thanks to custom firmware from this forum).

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run_rabbit55
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2013/10/19 - 19:28
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trying to unbrick my u30gt but unsure of what i need to download to carry on the unbricking process after dismantling the tablet.

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cappybob
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2013/10/19 - 20:01
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Running Rabbit There is a post at #56 back 3 or 4 in this section with some instructions on reloading the update.img file which is usually your original image.  I am a Newbe, but quick learner, like to play.

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