allwinner A13B (G-Touch M703) China Tablet, stuck at boot, PLEASE PLEASE HELP !! - Hardware Hacking General

hi, all, i'm new here, i'm in great problem, please please someone help me to find a working rom, with insturction how to install it on my tab,
its my younger sister, i installed chainfire 3d, i didnt saw before installing that it support jelly bean or not, my tab was running 4.1.1, and chainfire support only till gingerbread, now i am at great trouble. Stuck at boot, and i didnt installed a recovery before , and also tried to boot into recovery by pressing volume plus and power but it shows nothing rather it dosent boot for about a minute, please please help me to find a suitable rom for it.
:crying::crying:
I'm really sry if its a wrong section to post.
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I'm pretty sure there is a way to fully restore the tablet. For example, to open it up, get the sd card and format it and I'm pretty sure there will be a stock image
Sent from my SCH-I535 using Tapatalk 4 Beta

jun991013 said:
I'm pretty sure there is a way to fully restore the tablet. For example, to open it up, get the sd card and format it and I'm pretty sure there will be a stock image
Sent from my SCH-I535 using Tapatalk 4 Beta
Click to expand...
Click to collapse
(( no, that did'nt help..

Try holding both volume buttons down at the same time, then press and hold power button. See if that will put you into the OEM recovery screen that may have the option to do a factory reset or flash a ROM from an external SD. Keep playing around with combinations of this procedure, it may be your best bet.

I tried with holding volume down, volume plus then power, ...then only volume plus then power button, and every possible way of pressing thorugh.. now after these..now it seems to be fully dead... Anywa when i connect to pc.. it makes a sound on pc.. like connected.. but when i type adb shell on cmnt promt.. it says..
-Exes/system/bin/sh not found ..or something like.that.....
Now what should i do....,:-s
Sent from my HTC EVO 3D X515m using xda app-developers app

hey buy recovery works
hayetfahad said:
I tried with holding volume down, volume plus then power, ...then only volume plus then power button, and every possible way of pressing thorugh.. now after these..now it seems to be fully dead... Anywa when i connect to pc.. it makes a sound on pc.. like connected.. but when i type adb shell on cmnt promt.. it says..
-Exes/system/bin/sh not found ..or something like.that.....
Now what should i do....,:-s
Sent from my HTC EVO 3D X515m using xda app-developers app
Click to expand...
Click to collapse
what you have to do is hold vol up with power button ( you'll see a androbot lyieng down there) then just leave the buttons and again hold vol up button and then gently tap on power button (you should see a recovery console).

Related

No Recovery, No Download Mode

Screwed up a flash of build.prop
Originally I could access both Download Mode and Recovery but in the time I waited to download new Firmware to flash, I can't access either of them.
Holding Home+Vol Up+Pwer - Bootloops
Holding Home+Vol Down+Pwer - Bootloops
Letting boot shows the splash, makes bootsound with no graphic, lights the LED buttons and then Freezes
I was using the Stock Firmware from Optus.
Someone please help
EDIT: Fixed it, Anyone else who has a similar issue, I let it boot, and then it turned it's self off, once that happened I could access Download Mode again...Thank god
maybe you can help us here
http://forum.xda-developers.com/showthread.php?t=746814
a similar case, this guy has lost the ability to use the 3 key combo to go into the recovery mode
Try the flash seq. As soon as u see the s logo light up release per for a sec then press again.
Sent from my GT-I9000 using XDA App
Same Problem here i contact samsung here in mexico and a technical aggent tell me if we make a repair our phones we need a jtag and this is so bad alllready contact many people jtag manufacturers in china and honkong trow alibaba.com and no luck don't have other source i try is contact to nspro and z3x and no support for this repairand only hope still have is a reply from the people in the forum SMTi Jtag Repair Tool
just to be sure.
Did you get stuck in this screen? then you were able to continue after it turned itself off?
also, originally were your 3 buttons combo working out of the box?, mine was not working at all out of the box
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arch3rm said:
Screwed up a flash of build.prop
Originally I could access both Download Mode and Recovery but in the time I waited to download new Firmware to flash, I can't access either of them.
Holding Home+Vol Up+Pwer - Bootloops
Holding Home+Vol Down+Pwer - Bootloops
Letting boot shows the splash, makes bootsound with no graphic, lights the LED buttons and then Freezes
I was using the Stock Firmware from Optus.
Someone please help
EDIT: Fixed it, Anyone else who has a similar issue, I let it boot, and then it turned it's self off, once that happened I could access Download Mode again...Thank god
Click to expand...
Click to collapse
No, I only saw that screen once and the 3keys worked on it.
Sorry
meh... then it's not the same
that picture above, is the ultimately bricked screen.
and only the 3 button combo can save it, but if the phone have 3 button sequence disable, you are pretty much dead in the water.
Shut this ANDROID IS killing me with my s60v5 i8910 dont have any problems at all when flashing and i flashed arround 50 times
FKTS
lgkahn said:
Try the flash seq. As soon as u see the s logo light up release per for a sec then press again.
Sent from my GT-I9000 using XDA App
Click to expand...
Click to collapse
this worked for me. thanks!
hELLO NO RECOVERY NO DOWNLOAD MODE
i HAVE THE SAME PROBLEM, WHAT CAN i DO? THE SAME SCREEN...
see the sticky topic about the home made JIG?
use that
then you can go back to flash a good ROM

[Q][SOLVED] How to boot into recovery using hardware buttons?

There have been some people telling that we can boot into recovery using HOME + POWER but unfortunately it won't work for me. It won't work for some other people too.. But since some people state it works! Im confused..
I wonder if I should flash fastboot with a different method(kdz).
Any help ın this?
Thanks!
Editt: flashing the kdz in this thread solved it
For me the hardware buttons work u need to press VolumeUp+Power+Home hit thanks if it worked
Long press Power, when it powers up press Home and don't release the Home button until it boots into recovery.
snakkarike said:
For me the hardware buttons work u need to press VolumeUp+Power+Home hit thanks if it worked
Click to expand...
Click to collapse
Nope! it didn't
snakkarike said:
For me the hardware buttons work u need to press VolumeUp+Power+Home hit thanks if it worked
Click to expand...
Click to collapse
lewymaro said:
Long press Power, when it powers up press Home and don't release the Home button until it boots into recovery.
Click to expand...
Click to collapse
Nope! didn't help
by holding volume up press both power and home at the same time and keep holding it
snakkarike said:
by holding volume up press both power and home at the same time and keep holding it
Click to expand...
Click to collapse
dude! doesn't work!
ok then flash the kdz
Some times you must press so hard you smash the keys!!!
I would suggest you to reflash kdz file...
Flash a different recovery and try again
Sent from my LG GT540 using xda premium
nah, flashing a new recovery wont work..
ill try flashing kdz ...
if you're using a custom ROM then press and hold power will give you power menu where you can choose to reboot in recovery or fastboot (bootloader)
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\
stock ROM is very terrible, you shouldn't use it anymore
fulloflove said:
if you're using a custom ROM then press and hold power will give you power menu where you can choose to reboot in recovery or fastboot (bootloader)
\
stock ROM is very terrible, you shouldn't use it anymore
Click to expand...
Click to collapse
Dude why dont you go to a thread where you understand what people are talking about?
Btw flashing the kdz in this thread solved it
HOLD
Thats How i do it i hold power and home button until the phone vibrates.When it vibrates i stop holding power and i still hold home button
pwned686 said:
Thats How i do it i hold power and home button until the phone vibrates.When it vibrates i stop holding power and i still hold home button
Click to expand...
Click to collapse
Yeah yeah, i do it that way too. As i said flashing the kdz solved it

[GUIDE] How to get into RECOVERY & Download Mode

I couldn't find any information about how to get into download mode using any method other than using ADB and thougth to myself, "There has to be a key combination" so I had a play around and there is.
DOWNLOAD MODE:
1) Power down the camera.
2) Whilst holding down the Shutter Button press an hold the power button.
You will then see the following screen.
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Then just follow the on screen instructions.
In fact, you can do it using the zoom rocker too.
Now, I have been trying to find a combo to get into recovery, I have got it to flash up, but not stay, so it has to be in there, just a case of figuring it out.
UPDATE:
I've figured it out!
To get into RECOVERY MODE:
Make sure the camera is off first.
1) Press the shutter button HALF WAY IN and keep it held in that position.
2) Press the power button until you see it turn on then let it go, but keep the shutter button in the half way position.
You will then enter Recovery.
I keep doing this accidentally, so it wasn't hard for me to find . Must be something about the way I'm holding the camera sometimes when powering up.
I've figured out the combination to get into recovery, first post updated.
Sent from my GT-N7100 using Tapatalk 2
nice.. have been trying to figure this out myself,,,
Thanks for this! I'm trying to help someone recover from a bad stock update and we could find the info anywhere on how to get to recovery mode.
Ok guys. I tried all your suggestions and none work. I will tell you which one does. Download quickboot from play store and it allows you to tap on option to go into recovery. Works like a charm. none of this other nonsense.
Sent from my SPH-L710 using Tapatalk 2
You actually need to hold longer and it will enter the mode you want.
Sent from my EK-GC100 using xda app-developers app
Hello ,
camera samsung galaxy EK-GC 100 asks for update and does botloop.
I was loading CF-Root and it did not help.
Flash -Odin and Z3X didn't help.
Can you remove the update from the system and make a flash? e.g. reverse enginering. Regards Michał

HELP: accidentally turned off Android System and can not reboot

Hello everyone,
I need some help. I was using package disabler to disable some apps and I accidentally disabled Android System. This is now causing the phone not to boot pass the ATT logo screen. The phone is vibrating multiple times like it would normally do when starting up but it is not going pass the ATT logo. Any ideas how I can possibly fix this without resetting my phone? I am not rooted and am on the latest update from ATT.
Any help is appreciated.
Thank you.
elosogrande7076 said:
Hello everyone,
I need some help. I was using package disabler to disable some apps and I accidentally disabled Android System. This is now causing the phone not to boot pass the ATT logo screen. The phone is vibrating multiple times like it would normally do when starting up but it is not going pass the ATT logo. Any ideas how I can possibly fix this without resetting my phone? I am not rooted and am on the latest update from ATT.
Any help is appreciated.
Thank you.
Click to expand...
Click to collapse
The only thing i could suggest is to hold the power, up and home buttons until you see be blue lettering in the corner then let em all go, after that use the volume keys to scroll down to factory reset then press the power button to reset
BigHussle said:
The only thing i could suggest is to hold the power, up and home buttons until you see be blue lettering in the corner then let em all go, after that use the volume keys to scroll down to factory reset then press the power button to reset
Click to expand...
Click to collapse
Thanks....i was trying see if there was a way to fix it without erasing it...possibly using adb or a way to reflash the os and but keep the data
Sent from my LG-H900 using XDA-Developers mobile app
Try booting into safe mode and go and enable android system or uninstall app whichever work. Heres instruction how to boot in to safe mode
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Sent from my SM-G935U using Tapatalk
dogredwing1 said:
Try booting into safe mode and go and enable android system or uninstall app whichever work. Heres instruction how to boot in to safe mode
Sent from my SM-G935U using Tapatalk
Click to expand...
Click to collapse
Thanks for the suggestion....i have tried to get it to boot into safe mode but it isnt working....i am not sure if I am doing it wrong or just that the phone is so screwed up that its not going into it....thanks tho!
You may just have to face the fact that a factory reset is necessary. Not ideal I know, but short of getting safe mode to work it looks to be your only option...
Sent from my SM-G935U using Tapatalk

HELP! my a20 is stuck at installing system update .

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Been stuck on this screen for the last 6/7 hours. Pressing power plus volume down restarts the phone then rapidly goes into this screen and starts loading the update. After 100% it stays, nothing happens. The recovery menu never comes. Mine is SM-A205U Full Stock ROM
try this
Crash Recovery for the Samsung Galaxy A20
Crash Recovery for the Samsung Galaxy A20 1. Be Prepared Most of us will suffer from a crash at some time. If you know how to fix it, you will have a lot less stress. There are certain files you need to keep in readiness. Always backup boot...
forum.xda-developers.com
jodiac said:
Been stuck on this screen for the last 6/7 hours. Pressing power plus volume down restarts the phone then rapidly goes into this screen and starts loading the update. After 100% it stays, nothing happens. The recovery menu never comes. Mine is SM-A205U Full Stock ROM
Click to expand...
Click to collapse
Restart the phone using volume down and the power button.
After the screen turns off but before it turns back on, let go of volume down and hold volume up instead along with your power button.
Either wipe your phone or format data from there. (Either option will leave you factory fresh in this case)
Unless you wanna use odin to push the update instead of relying on the inbuilt updater.
In which case you hold volume up and down along with the power button before using a computer to do your update.
ninjasinabag said:
Restart the phone using volume down and the power button.
After the screen turns off but before it turns back on, let go of volume down and hold volume up instead along with your power button.
Either wipe your phone or format data from there. (Either option will leave you factory fresh in this case)
Unless you wanna use odin to push the update instead of relying on the inbuilt updater.
In which case you hold volume up and down along with the power button before using a computer to do your update.
Click to expand...
Click to collapse
So it should revert back to its original firmware?
Always wondered about this situation on unrooted phones. It can happen too easily with auto flashing.
blackhawk said:
So it should revert back to its original firmware?
Always wondered about this situation on unrooted phones. It can happen too easily with auto flashing.
Click to expand...
Click to collapse
It'll clear any data on the partition that may be interfering.

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