AllWinner A33 not displaying after trying to get out of reboot loop - Android Q&A, Help & Troubleshooting

I managed to get out of the reboot loop (constantly showing the boot animation) by flashing the device using the A33 firmware + Phoenix flash utility from AllWinner website. I can see the download transfer of the image up to 100%... then completes successfully. Showing, 1 complete, 0 failed. However, it just ends up with a blank screen (with backlight on but no display image). I can hear the USB disconnect audio sound still on the device.
It seems like the device isn't powercycling (due to the battery); even though I've selected the checkbox for rebooting the device in the Phoenix flash utility.
I'm not sure how to force a powercycle. The battery wont let me. Does anyone know how to use the factory reset pinhole on the device? Can someone please tell me if I've completely ruined my tablet?
Thanks in advance for your help!

Related

Help! Boot Loop or Complete Brick? :(

So a friend recently bought this spanish voxter tab 97 IPS (16GB) and after a few days of usage and several attempt to install a custom ROM, the tablet stopped booting. According to him, he tried loading a "compatibility bla bla bla.zip" file with CMW which I really do not know what it is, and since he did the installation, the tab stopped booting into system. Every time it's turned on, it just stops at the boot screen and nothing more. Although before this, he had installed a custom recovery and had also done a Nandroid backup with the recovery. However, what baffles me is, CMW is no longer accessible through the normal "power + volume up" key combo and I'm quite unsure of how to boot into fastboot.
That aside, I tried booting into recovery with adb because apparently, adb recognizes the device whenever it's stuck at boot screen, this also failed, neither did rebooting into fastboot via adb work. All I need to know is if this device is totally bricked, or if there's still something I can do. If there's any, I really would appreciate every help offered. Thanks..

[Q] ALLWINNER A10 Booting Problems, stuck on Android Logo

Hi
Having major issues with my Tablet
Make - ArtView, Model - AT9C-A10WAA
Its an Allwinner A10 with ARM Cotex A8 and 1GB DDR3 Ram.
Turn it on and it just hangs and shows Android Logo for ever. Have tried coupl eof things to resolve such as use LiveSuit to flash new img.
I have downloaded both images from Artview Support Website and no joy opn either, tried another rom but still no luck each time just hangs and gets stuck on android logo.
I did however manage to get tablet to load up, and it worked fine but not sure if relaterd but went into settings and signed in with my gmail account and then just froze, turned off and then got stucvk again at android logo.
I have since tried reflashing but no joy. Tried the Advanced format setting on LiveSuit with rom from ArtView but nothing.
Any ideas what to do, rather than using LiveSuit rebooted tablet holding down VOL - and Power into Recovery Mode but when selecting flash from SD Card it doesnt show anything

Device boots only once after flashing

Device is MTK6572 Android 4.2.2
Android or the factory mode boots only once after flashing. If I flash the ANDROID section (stock system.img) the phone boots to Android and hangs after about 15 seconds (screen freezes, doesn't respond to anything), after that (on booting) only the screen backlight turns on and the device never boots (just hangs forever with the backlight turned on).
Exactly the same happens if I go to the factory settings (Power+VolumeDown) except the factory mode itself never freezes (I can go around in chineese menu, run tests etc.).
The recovery mode seems to work fine (Power+VolumeUp), it also never hangs and it always can be loaded after reboot (without needing to flash system.img).
I've tried to wipe everyting using both stock and CWM recovery before the first booting and before flashing the system.img. I've also tried to flash every file I have in my backup (preloader, uboot, boot, recovery, secro, logo, system) SpFlashTool allows to flash.
Also, I need to mention everything started when some "system GUI error" started to pop up and I've decided to rollback to the factory settings (I did such rollbacks before without any problems).
What could be the possible problems here? Any help would be very appreciated.

Bricked Asus TF103C

Hi all.
I have an Asus TF103C that had been updated to lollipop that is currently (soft?) Bricked
I've been through pretty much all the threads and tried all of the fixes. Still unable to boot into android. I am unsure what step to take next. I cant apply official firmware updates via SD card nor sideload via ADB
Currently I can get it to boot up to a UEFI BIOS screen(where I can only scroll up and down via volume keys on the first page and nothing else.) or a fast boot screen showing firmware version ( 209.05 just incase its needed.) I can get it back to a droidboot screen, but I still cant flash any system img. If it's important this tablet uses an Intel Z3745.
Just a quick bump. Still only have access to the fastboot screen and recovery. I attempted flashing images again, and while it eventually goes through after breaking the image down into smaller parts, upon reboot I'm stuck at the android screen.
Open to any help what so ever.
It should also be noted that upon flashing via fastboot, after the system image goes through, I get the error " Flash Capsule Failed." And then it reboots to just the android screen.
Mine also bricked
Hi cronus2
Did you manage to solve this problems? I gather from your second post that you managed to get past uefi... I'm still stuck there: how did you do that?
Thanks to anyone who can give me some help here...

Lenovo TAB S8-50F won't boot, help!

I'm not a n00b, I've rooted every Android device I've ever had, and I have my OnePlus Two running the latest CM14.1 nightlies. But I can not figure out what to do for this poor tablet.
I had downloaded and installed an OTA from Lenovo, but it must have been corrupt because the tablet got stuck in a boot loop. I can boot into recovery, so I tried formatting it and clearing all the caches, then it goes to a screen with a loading bar, which fills completely and just sits there. I've left the thing on all night. Nothing.
Sending it to Lenovo is a no-go because I voided the warranty when I rooted it.
I've also tried reinstalling the stock firmware, but the Intel phone flash tool either get's blocked by Windows 10 (with no way to whitelist it) or fails to flash properly.
crandroid99 said:
I'm not a n00b, I've rooted every Android device I've ever had, and I have my OnePlus Two running the latest CM14.1 nightlies. But I can not figure out what to do for this poor tablet.
I had downloaded and installed an OTA from Lenovo, but it must have been corrupt because the tablet got stuck in a boot loop. I can boot into recovery, so I tried formatting it and clearing all the caches, then it goes to a screen with a loading bar, which fills completely and just sits there. I've left the thing on all night. Nothing.
Sending it to Lenovo is a no-go because I voided the warranty when I rooted it.
I've also tried reinstalling the stock firmware, but the Intel phone flash tool either get's blocked by Windows 10 (with no way to whitelist it) or fails to flash properly.
Click to expand...
Click to collapse
What I've tried:
Just plain booting it - screen turns on and doesn't do anything, just black
Rebooting through recovery (power + vol_up) - plays boot animation, goes to a screen with a loading bar like it does after an update, but once the bar fills, a white line appears at the top of the screen and nothing happens
Downloading the official KitKat firmware (http://forum.xda-developers.com/android/help/lenovo-tab-s8-50f-stock-firmware-rom-t2989791), unarchiving the rar file and rearchiving it into a .zip, putting it on a MicroSD card, putting the card in the tablet, flashing through recovery - can't find the .zip, says SD card is blank
Clearing caches and wiping data - same as when rebooting through recovery
Using the Intel phone flash tool through bootloader (power + vol_down) - tool can't find device
Using the same tool through fastboot (power + vol_up + vol_down) - gets to the sleep 4000 ms step, reboots the device, then the device goes to the same loading screen and the flash tool can't contact it. I think it's trying to boot into the OS to finish the flash, but that's the problem to begin with
I've tried loading the temporary CWM session but that fails
I can't for the life of me figure out what the @bailka011 Unlock Tool is supposed to do or how to use it, plus the download link isn't working.
Can someone please guide my through this? I'm so confused
crandroid99 said:
What I've tried:
Just plain booting it - screen turns on and doesn't do anything, just black
Rebooting through recovery (power + vol_up) - plays boot animation, goes to a screen with a loading bar like it does after an update, but once the bar fills, a white line appears at the top of the screen and nothing happens
Downloading the official KitKat firmware (http://forum.xda-developers.com/android/help/lenovo-tab-s8-50f-stock-firmware-rom-t2989791), unarchiving the rar file and rearchiving it into a .zip, putting it on a MicroSD card, putting the card in the tablet, flashing through recovery - can't find the .zip, says SD card is blank
Clearing caches and wiping data - same as when rebooting through recovery
Using the Intel phone flash tool through bootloader (power + vol_down) - tool can't find device
Using the same tool through fastboot (power + vol_up + vol_down) - gets to the sleep 4000 ms step, reboots the device, then the device goes to the same loading screen and the flash tool can't contact it. I think it's trying to boot into the OS to finish the flash, but that's the problem to begin with
I've tried loading the temporary CWM session but that fails
I can't for the life of me figure out what the @bailka011 Unlock Tool is supposed to do or how to use it, plus the download link isn't working.
Can someone please guide my through this? I'm so confused
Click to expand...
Click to collapse
what did it says the update would do? android 6.0? latest update for this tablet was released 7 months ago... the unlock tool u mentioned unlocks the bootloader, and try to find a win7 pc to do the flashing. some users on a different forum stated that windows 10 will cause problems during flashing
good luck
xaocot said:
what did it says the update would do? android 6.0? latest update for this tablet was released 7 months ago... the unlock tool u mentioned unlocks the bootloader, and try to find a win7 pc to do the flashing. some users on a different forum stated that windows 10 will cause problems during flashing
good luck
Click to expand...
Click to collapse
This update was seven months ago. It did not claim to bring 6.0, just minor fixes.
Thank you for clearing that up, now I just have to figure out how to download and use it xD.
Also I have figured out how to enable the hidden administrator account in Win10 and use that to get around the security warning, still tries to boot partway through flashing. Unless there's some other part of Win10 that's disagreeing with it.
Sent from my ONE A2005 using Tapatalk
the same problem with me!
crandroid99 said:
What I've tried:
Just plain booting it - screen turns on and doesn't do anything, just black
Rebooting through recovery (power + vol_up) - plays boot animation, goes to a screen with a loading bar like it does after an update, but once the bar fills, a white line appears at the top of the screen and nothing happens
Downloading the official KitKat firmware (http://forum.xda-developers.com/android/help/lenovo-tab-s8-50f-stock-firmware-rom-t2989791), unarchiving the rar file and rearchiving it into a .zip, putting it on a MicroSD card, putting the card in the tablet, flashing through recovery - can't find the .zip, says SD card is blank
Clearing caches and wiping data - same as when rebooting through recovery
Using the Intel phone flash tool through bootloader (power + vol_down) - tool can't find device
Using the same tool through fastboot (power + vol_up + vol_down) - gets to the sleep 4000 ms step, reboots the device, then the device goes to the same loading screen and the flash tool can't contact it. I think it's trying to boot into the OS to finish the flash, but that's the problem to begin with
I've tried loading the temporary CWM session but that fails
I can't for the life of me figure out what the @bailka011 Unlock Tool is supposed to do or how to use it, plus the download link isn't working.
plz someone too guide me ,the same problem is happening but there is no appearance of a loading screen,when i switch on the tab ,it showws the lenova logo and goes to a black screen thats keeps on flahsing!! i dont knwo what to do ,when i connect to pc and try to flash it doesnt work,i dont what to do plz help me!!
Click to expand...
Click to collapse

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