My tablet isn't booting into the OS or into recovery, but it does boot into download mode. So, I am going to reflash it, but I was wondering if there is a way to retrieve the files from the tablet. Maybe something with an ADB shell. I don't know. I don't have much experience with this type of problem.
Thanks
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Guys,
I have a Freescale iMX515 A8 9.7" unbranded tablet running Android 2.2.
The software/firmware on there is f'ed up, because it doesn't have recovery mode. Since that's not all that is wrong, I need to update the firmware, but I don't know how.
If recovery mode works, then no problem, but it doesn't. So can someone tell me how to install new firmware without using recovery mode?
For info: I have a Mac and do not have access to a windows based PC. I also tried ROM Manager, which also doesn't allow me to install new firmware, and finally I tried quick boot, but that too doesn't allow me to utilise recovery mode.
As a suggestion (mind you, I'm a noob otherwise I wouldn't be asking for help here), I would expect a solution using adb shell, or perhaps just copy/pasting a clone of the internal TF card (most likely the best solution)
Hello XDA. I was looking through your forums trying to upgrade my android's os and ran into trouble. Any help would be appreciated.
I just broke my android inspire. I tried to root it and once I installed the hack it doesn't boot anymore. It's stuck at the boot screen. My volume down button doesn't work so I can't reset it. Can I reinstall it from my pc? I've got a windows and linux partition. I'm guessing I'm going to need the linux partition because I can't access the file system through My Computer anymore.
What should I do?
Find the forum for your phone and ask there, you will find people that know your phone better. Make sure you have the drivers installed on your computer and try to adb reboot recovery.
Hi there folks,
Hope someone can help me with this as I’ve searched high and low for answers on the interweb to no avail.
I tried installing the CyanogenMod 9 for AllWinner A10 tablets onto my cnmlifestyle table (a cheap tab shipped by the retailer argos).
http://forum.xda-developers.com/showthread.php?t=1760929
The installed failed as I’m getting the “encryption unsuccessful” screen after the initial boot.
I wasn’t too concerned though because I had successfully installed CWM recovery and created a back-up.
But now I can’t get back into CWM recovery?
I still have access to the device via adb but for some reason fastboot won’t work.
When I type “adb reboot recovery” the tablet boots quickly and goes straight into the CyanogenMod splash screen.
I can navigate around the device using adb shell so I’m assuming all is not lost?
Some background information:
The tablet is unsupported but I was pretty sure it was a clone of the Mediacom 907c or Gemei G9 so I used the g9_legacy-compatibility_vX.zip comp zip compatibility pack.
So can anyone suggest some means of either:
Triggering recovery from the PC
Flashing an alternative Rom from the PC using adb
Or getting fastboot up and running.
Any input would be appreciated.
Thanks in advance
Hello,
I have a tablet that has recently stopped booting. The manufacturer does not provide a firmware rom, nor have I been able to recover it any other way. I feel like I have been running in circles in researching ways to recover it (but I have learned alot). I think that I could recover the tablet if I could install a more flexible recovery manager, such as CWM or TWRP. However, to my knowledge, the tablet must be rooted first in order to install these custom recoveries. So that brings mt to my question: How can I root a tablet that won't boot? I have heard many good (and a few bad) things about Kingosoft Rooter and other root methods. However, even Kingosoft requires the tablet to have USB debugging enabled. Unfortunately, I did not have this enabled before my tablet crashed. So:
1. Is it possible to root my tablet that won't boot?
2. Is it possible to enable USB debugging on my tablet that won't boot?
3. Is there any other way you can think of to get this tablet running?
By the way, the tablet is a RCA RCT6378W2 tablet. I can access the stock recovery (android system recovery <3e>, but I can't seem to make it do anything worthwhile. Any ideas? Thanks!
1. You can't root because the tablet must be on
2. You can't enable adb debugging because the tablet must be on
3. I guess that your tablet is a made in china tablet, so there should be a devices that have same or similar characteristics, and maybe there is a stock rom for those devices
Good luck for your tablet :good:
jeremyb234 said:
Hello,
I have a tablet that has recently stopped booting. The manufacturer does not provide a firmware rom, nor have I been able to recover it any other way. I feel like I have been running in circles in researching ways to recover it (but I have learned alot). I think that I could recover the tablet if I could install a more flexible recovery manager, such as CWM or TWRP. However, to my knowledge, the tablet must be rooted first in order to install these custom recoveries. So that brings mt to my question: How can I root a tablet that won't boot? I have heard many good (and a few bad) things about Kingosoft Rooter and other root methods. However, even Kingosoft requires the tablet to have USB debugging enabled. Unfortunately, I did not have this enabled before my tablet crashed. So:
1. Is it possible to root my tablet that won't boot?
2. Is it possible to enable USB debugging on my tablet that won't boot?
3. Is there any other way you can think of to get this tablet running?
By the way, the tablet is a RCA RCT6378W2 tablet. I can access the stock recovery (android system recovery <3e>, but I can't seem to make it do anything worthwhile. Any ideas? Thanks!
Click to expand...
Click to collapse
Wipe cache and reboot and when it doesn't work do you have to try factory reset.
Bink Feed said:
Wipe cache and reboot and when it doesn't work do you have to try factory reset.
Click to expand...
Click to collapse
Thanks to both of you for your suggestions.
@ bink feed - Thanks for those recommendations. Those are the normal recommendations that should be given to most people. Unfortunately, I have already tried both of those options with no success. It seems that many, many people are running into this problem. It makes me wonder if the recovery partition is corrupt or if some system files were somehow corrupted. The "wipe cache" option and "factory reset" option both perform successfully according to the recovery system, but they do not fix the problem with the tablet not booting. I apologize for failing to mention that I have tried these options. If you have other ideas, please let me know.
@ kfarhan57 - Thanks for the suggestion. This seems like a good idea and it is something I have attempted to do. Problem is, I don't know precisely what similarities must be present for this to work. I have tried using ROMs from other tablets that share the same processor and motherboard, but have not had any success. They seem to always fail the verification process. I have very, very little experience in all of this, so it's always possible that I am not doing it correctly too. Do you know of anyone who has successfully done this? (Someone who has restored on device with a firmware from a similar device). If so, I'd like to ask them how they did it. Here is what I have tried:
1. Boot device into Android Recovery System.
2. Select "Apply update from ADB"
3. Connect the tablet to PC using USB cable
4. Load up Cmd terminal in Windows, navigate to folder containing ADB.exe
5. Type in "ADB sideload filename.zip"The only thing that I have successfully sideloaded (and passed verification with) has been 3 small firmware updates for my tablet. Unfortunately, they are minor updates and do not restore the Operating System or ability to boot into the OS. Presently, I have been toying with the idea of merging one of these small firmwares that pass verification with the factory OS firmware from a similar device. I don't know if this is even possible, and if it is, I probably lack the knowledge needed to do it. If anybody reading this post has a suggestion, please let me know! BTW, one other thing I forgot to mention is this- I have the files copied from a working tablet of the same model. I have the boot.img, recovery.img, system.img, and virtually everything from his device... I just don't have a clue what to do with it. Thanks again. Hope to hear back from one of you!
Ok, so as the title says, I have the blob files (which I just found on my laptop). The tablet has TWRP v2.6.3.0 and asks for a password, which I don't know. Reading around it looks like it's just the error you get if you happen to have installed the wrong recovery for your bootloader. I have run the JB brickproof (flatline) and have my files. However, I can't get my desktop *or* my laptop to see the tablet in adb. The drivers fail. I also can't seem to get it to boot to APX mode. It only wants to go to TWRP. I can't force the BL to run because I can't get ADB to run. Anyone have any thoughts?
-Todd
todd3835 said:
Ok, so as the title says, I have the blob files (which I just found on my laptop). The tablet has TWRP v2.6.3.0 and asks for a password, which I don't know. Reading around it looks like it's just the error you get if you happen to have installed the wrong recovery for your bootloader. I have run the JB brickproof (flatline) and have my files. However, I can't get my desktop *or* my laptop to see the tablet in adb. The drivers fail. I also can't seem to get it to boot to APX mode. It only wants to go to TWRP. I can't force the BL to run because I can't get ADB to run. Anyone have any thoughts?
-Todd
Click to expand...
Click to collapse
Try reinstalling the Universal Naked Drivers, using a different USB port, using Test Mode (if on Windows 8) to get the ADB working.
When that does get up, this thread should be helpful:
http://forum.xda-developers.com/transformer-tf300t/help/guide-t2854495
todd3835 said:
Ok, so as the title says, I have the blob files (which I just found on my laptop). The tablet has TWRP v2.6.3.0 and asks for a password, which I don't know. Reading around it looks like it's just the error you get if you happen to have installed the wrong recovery for your bootloader. I have run the JB brickproof (flatline) and have my files. However, I can't get my desktop *or* my laptop to see the tablet in adb. The drivers fail. I also can't seem to get it to boot to APX mode. It only wants to go to TWRP. I can't force the BL to run because I can't get ADB to run. Anyone have any thoughts?
-Todd
Click to expand...
Click to collapse
Hey todd.. I have a tab thats briked too for around 9 months now( flashed wrong twrp and on top of that chose wipe option from bootloader..my mistake for not reading the instructions clearly)and i hadnt made nvflash backup..now i am desperatly searching for the blob files so that atleast i can try doing something to get it out of the graveyard.. I never it online anywhere..I know the files are device specific but what goes in giving it a try..curretly the tab just boots to recovery with adb and apx only..fastboot doesnt work..
So will it be too much to ask if its possible to share the blob files??? ..