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I ve got a white u30gt1 cube..got frozen while playing. Then I copd the android red triangle.etc
since then I ve opened it up and reset it couple of times.. But what I want to know is that.. I got u30gt1 cube and inside on the mainboard/motherboard it says u30gt2.... Now I ve tried so many roms ....stock firms and custom.. the ones for u30gt1 they always faild...so then I moved on u30gt2 and it only did flash it with the 900 custom rooms..but never came up like the tablet never opened up..... so I get the blue square now then pink..then green...now I cant even install the rom 900.... keeps failing like no tomorrow......
SO ANYONE THAT CAN HELP////////// PLZ Tell me what to do.......
btw I didn't try anything with an SD Card whats so ever.... since I don't get that android laying down nomore.
and I followed that Russian youtube guide.... I ve done usb cables and stuff.....front back .....
It seems that you've now got it thoroughly bricked.
You are extremely vague about what exactly you have done, exactly which ROMs (and version numbers) you have tried to flash, and exactly how (and with which tools) you tried to flash them. Furthermore, telling us that you "followed that Russian youtube guide" is meaningless, and reveals nothing about what you have tried to do.
Perhaps if you gave full details of how exactly you got where you are now, someone may be able to comment.
Darth Jabba, the Dark Jedi from Nal Hutta
I have tried lots of rooms stock custom.. and I was going back and forth .im doing it thru usb since I had no other option to do it when the cube was working fine. What I realized is that wouldn't take any of the u30gt1 roms. So I got some roms for u30gt2..... And I managed to flash the cube once with a u30gt2 rom and the rom was (cubeU30GT2_1.03_900supersport) after that it did restarted ..... there was a welcome msg but the screen was flickering and it didn't boot up.... I had like blue background and an android icon standing up and there was something written ..... now on the back of my cube I got this (u30gtc4 16gbw then on the right side of it , I got the Chinese logo and I got 1 ) but inside my cube on the board I got U30gt2_3188) long story short.... I ve connected the two point on my cube just incase was bricked... left it there for couple of days tried again .I got the green box in rk tool 1.7 and like I said only that 900 rom worked I mean it was a successful flash......but that didn't fixed my cube.....so I ve been trying every rom that I could possible get off the net.....still stuck......about the Russian guide .....it shows how to un brick it.... and also showing that sometimes the usb cable might be the problem..... my usb detects my cube in maskrom..... I just don't know what rom should I go for u30gt1 , u30gt2 ,u30gtc4 or u30gt-W....... to be honest I ran out of ideas .....it might be that, I' am trying to install a wrong rom..... and out of 10 rooms half of them were for the u30gt1 and the other half for the u30gt2 only one rom worked I mean got flashed but that's as far it went... I never saw my cube working...... I didn't tried with an sd card ,since I need to get that card reader and 1st of all I got to format it with fat, and then processed ..but been in mask rom it wont help much .....with the sd option
From what im seeing on the net ppl are fine with having a blue square or green I got the blue square at the moment . My question is ...which info should I follow what it says on the outside of the cube that is u30gt1 or inside that's u30gt2.... so then I know what to search for and keep on trying.....I just downloaded u30gtc4 - W and even that one doesn't wanna work
I'm sorry, but you are still not giving clear or sufficient information. I have indicated above the information that is needed. You have only addressed some of it. Now, you have introduced "u30gtc4 16gbw" into the equation. Perhaps somebody else understands fully the situation. I don't.
Darth Jabba, the Dark Jedi from Nal Hutta
As for the blue square, as I understand this means the flash memory is in MASK mode, I had similar experience with another device as you can see in this video:
(this may not be appropriate for your situation, I am just posting that as an illustration)
In you case, it may be you flashed a KitKat firmware and you have a recent Rockchip (V2) loader that does not work with older firmware. So you would either need to reflash a KitKat firmware (with V2 loader) that is designed for your tablet model or just reflash an older Rockchip loader and try an older firmware (using V1 loader). I am still experimenting on this subject so I'd prefer to be done with that and make sure I am posting proper instructions to guide you. I hope to have time to make progress on that next week.... Others may have ideas as well.
Last things, can you please post a link where you bought the tablet, that may help identifying the model ? Maybe you could talk to the vendor asking which firmware you should flash.
By chance, did you note the kernel and firmware versions in Android Settings / About tablet screen before you re-flashed the device ? That also may help finding which model you have.
The following users say thank you to admin for this useful post:tetoec
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THank you for your effort. I introduced c4 because that's what its got on the back of the tablet..... but on the board its u30gt2...... and I bought this off ebay .....it was meant to come from Sydney....but they end it up getting from china , and the guy is not registered on ebay anymore..... and the only way I went to flash this is because my little one was playing a game and I got frozen in the middle of a shooting game.....after that I was trying to restart the cube.....but when it came back was that android laying down with the red triangle......so I could use the keys to go up and down.....and I remember I deleted something there wasn't much option there......and after that nothing happened.....so I started going sick at all the forums searching for clues......then I tried 900roms..... I tried couple stock standar firmwires from cube51 I think...... no cube no fun thingy.... then I kot that kayse something like that.... for u30gt2..... I ll try and type em all in here what roms I ve downloaded..... and also the cube that I bought...... and to get back to the question did I check the firmwire and all that stuff..no I didn't bcs it was blocked and after that never worked.....bur previously my screen used to flicker and what not im guessing from overheating.... while playing candy crush saga..and all I did was reset to factory .....then I tripped out it was all in Chinese I got it back in eng..... thanks to some tips and tricks off the net... and after that couple of days later my son was playing some Robocop shooting game ..and it froze....... okey I will post now the exact cube that I bought off ebay.....
10.1 inch Cube u30GT1 RK3188 quad core google android 4.1 tablet pc IPS HDMI (white one)
ROMS that I ve tried and failed
U30GT1 Android 4.1_V1.01_20130506
cubeU30GT2_1.03_900supersport - And I think this is the one that got installed once and it had that welcome on the loading screen but that's as far as it went..... and at that time I also got toe internal storage showing up on my computer....but that was it.....now im back to square one.......
im over it but its not bricked I think....and if it is I can unbrick it ......I did it so many times before.... maybe I should look for some roms for u30gt1 instead of u30gt2.......I will do my heading about it for another week after that its going in the bin.....
C4 is a different device from GT1 and GT2. If what is written on the back is C4, then you should assume that it is a U30GT C4. So, you need a C4 ROM. But you have tried so many things, including a KitKat ROM. The KitKat loader is different from earlier loaders, as admin has noted above - and is not interchangeable with JellyBean firmwares.
Your best bet at this stage is to try a C4 KitKat ROM (if there is a stable one).
If you want to go back to JellyBean, then you would first need to flash a v1 loader before trying anything else. You cannot do this with the RK Batch Tool - you would need to have all the separate images of the ROM that you want to use, and then use the RKAndroidTool to flash, first, the appropriate loader, and then the rest of the ROM.
The following users say thank you to DarthJabba for this useful post:tetoec, admin
Darth Jabba, the Dark Jedi from Nal Hutta
this is the webpage http://www.51cube.com/en/DownShow.asp?ID=184
I know what you mean... I forgot to add that... the rom 900 was done with RK Batch Tool not with the RKAndroidTool . I use to run RKAndroidTool just to see what colour square I had at the time getting whether is pink , green or blue.....so then I can go and install rom with the RK BATCH TOOL. Did you see the back cover ?!?!?!? about the c4......???? and what about the printed u30gt2 on the mainboard/motherboard?!!?!!?
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