Hello,
I got a bricked SM-T830 and tried to fix it. It boots and shows "failed to mount /efs". I did the usual recovery stuff (repartition/flashing stock with odin) but still get the same error. I assume that the efs partition as deleted.
Since the device is not a mobile device, there should be no IMEI, so any partition of a similar device should do it - right? Could anyone provide a partition dump of the efs partition?
Since i have to assume that all partitions have been wiped, are there any other partitions that are not included in the stock firmware?
Related
Hi,
I've been trying to install a custom ROM on my grand duos to replace the china unicom rom that restricts access to a lot of things and have run into problems. I have managed to install a cwm recovery using odin but formatted all partitions in the process and now I can't mount the /data partition. The phone is stuck in bootloop when I try turning it on, I have tried using a .pit file to repartition but no success. Can anyone help?
Hello.
I attempted to flash the Open Beta 7 (OTA_011) zip with TWRP to my OnePlus 3 and it broke everything.
The flash went normally, like with previous updates, but this time, I couldn't flash SuperSU over it. So I rebooted, hoping it worked.
I was presented by a "Decryption failed" screen, with the only option to factory reset.
The problem is, that I don't have any backups of my data, because FolderSyncLite aparently doesn't work at all.
When I got back into TWRP, my /data partition wasn't mounted, with the error
Code:
could not mount /data and unable to find crypto footer
TWRD shows the Data partition as 0MB. I know the data couldn't have just disappeared.
My best guess is that the userdata partition got corrupted somehow, and because it was encrypted, the entire partition is now useless.
TWRP's fsck.f2fs fails with error 255 (glitched error -1?), probably because it's encrypted.
Is there anything I can do to recover my data? Could I copy the raw partition to my computer and process it there?
Could I manually rebuild the broken header/footer? I still know the pattern/PIN and I don't think they're not salted.
I know there's some brilliant people on here. Please help.
Use the mega unbrick guide and everything will be fine
Edit: i didn't read that you're want to recover your data ... Hmm probably you can't recover your data anymore because your partition is currupted.
Look, change the data partition to ext4. It should work because sometimes the partition gets formatted to a corrupted form of f2fs. If it doesn't work, just wipe userdata and try again. It sure should work. Don't be shocked. Happens.
Thanks for the replies.
I tried a few more things, but the partition was beyond help. Full-disk encryption isn't very fault-tolerant.
I'll be using two sync programs from now on, just in case.
franga2000 said:
Thanks for the replies.
I tried a few more things, but the partition was beyond help. Full-disk encryption isn't very fault-tolerant.
I'll be using two sync programs from now on, just in case.
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I have the same problem. The unbrick guide didn't help. Any ideas anyone?. Please help
I've recently updated my htc 10 to Android 7.0 using the 2.38.617.6 firmware and added twrp to use for backup purposes. I have attempted to root the device with chainfire's supersu, but failed due to data being in the wrong format.
First off, I managed to find out the the system partition is ridiculously large (17,592,186,044,365 MB) leading me to believe that the system partition has been corrupted.
I've checked the format type for each partition (data, system and cache) they check out to be ext4.
As the title of the post states, I've also ran into that problem before the system partition size issue.
Also, when trying to reboot the system through twrp, I get the message, "No OS Installed! Are you sure you..." but the phone boots up just fine.
Any help is appreciated.
ensure you flashed the latest unoffical twrp from the xda twrp thread. not the official one.
j to the 4n said:
ensure you flashed the latest unoffical twrp from the xda twrp thread. not the official one.
Click to expand...
Click to collapse
I have fixed the issue. I had to find and flash the latest ruu because I had restore the /data partition from when I had the phone rooted and downloaded xposed. I ran through the same process after the flash without restoring the data partition and now it work.
Only downside is that I can't restore my data until xposed has a compatible framework. Thanks for replying.
I got a clean backup of the twrp formatted the sd card with external memory I mounted the backup in the external sd and restored the system .... With that I was successful:dedos cruzados::dedos cruzados:
Hello, I was on a meeting and I turn off Note 2. After this it was stuck on boot logo. My TWRP is v 2.8.0.1 It says there is no os; Internal storage is 0mb, External storage is 0mb. I tried sd card on other phones. It worked. My PC can't recognize my phone. Also:
- unable to mount ''/system; data; cash; efs; internal and external; no valid storage partition found for MTP etc.
Is there anything I can do about it? Thanks in advance!
Lavchev said:
Hello, I was on a meeting and I turn off Note 2. After this it was stuck on boot logo. My TWRP is v 2.8.0.1 It says there is no os; Internal storage is 0mb, External storage is 0mb. I tried sd card on other phones. It worked. My PC can't recognize my phone. Also:
- unable to mount ''/system; data; cash; efs; internal and external; no valid storage partition found for MTP etc.
Is there anything I can do about it? Thanks in advance!
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Change the file system to ext4 (for every partition possible). I had the same issue. You will loose all your data in internal storage. And you probably have to flash new rom.
You could try flashing a stock ROM with Odin but you will lose your data.
Ok... thanks... I change he file system to ext4 (for every partition possible). In recovery i wipe everything - loosing data is not important. Now I have problem with Odin. I tried to flash stock 4.4.2 but i have sbootbin fail. My latest ROM (i think) was 4.4.4. What can I do?
Did you confirm the model # in download mode? Sboot.bin is not flashing in Odin because the ROM is not made for the phone.
Did you try using different USB cables and USB ports? Tried using Odin 3.07?
The ROM is official, and latest for my country and carrier. I dont know if there is a problem with custom rom that was on my phone before - which is 4.4.4. I tried with Odin 3.12.3. Now i downloaded Odin 3.07. and now it says NAND write start! FAIL!
Lavchev said:
The ROM is official, and latest for my country and carrier. I dont know if there is a problem with custom rom that was on my phone before - which is 4.4.4. I tried with Odin 3.12.3. Now i downloaded Odin 3.07. and now it says NAND write start! FAIL!
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Click to collapse
Try flashing any custom rom. When i faced this issue, i just changed every partition to ext4 and then flashed a custom rom of my choice. And everything went normal.
How can I flash custom rom when I cant see my internal and external storage (it says = 0mb and all folders are empty). I tried different Roms with different ODIN's- mostly Nand write fail! I cant change internal storage to ext4 because :"Invalid partition selection"! Can I flash custom rom with Odin?
Lavchev said:
How can I flash custom rom when I cant see my internal and external storage (it says = 0mb and all folders are empty). I tried different Roms with different ODIN's- mostly Nand write fail! I cant change internal storage to ext4 because :"Invalid partition selection"! Can I flash custom rom with Odin?
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The 0mb issue isnt fixed by changing file system??
Remove any sd card if you have inserted. Try again to change them.
In my case i fixed 0mb issue by changing file system to ext4. Nothing else.
No... I have 0mb.. I changed available file systems to ext4 with and without sd card.. Is there any way to do something?
Your only hope may be flashing the phone with a jtag cable. If that doesn't fix the problem, the memory is defective.
https://forum.xda-developers.com/showthread.php?t=2093599
Hi everyone i have an A7 2017 model A720F
AND ITS BROKEN BUT it can still run twrp and nothing else
if it is possible for someone have the same model to backup all his partions [BOOT/SYSTEM/DATA/EFS/VENDOR(if exist)/CACHE...] and uploaded them
i would be grateful thanks a lot.
Instead of restoring a backup from someone else (which is generally a bad idea) it would be better to just download any custom ROM and flash that instead.
He's partitions corrupted!
matkali said:
He's partitions corrupted!
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yes partition are corrupted, I have tried many solutions but non fixes the phone,
so if you have a way to fix this problem or a twrp partitions back just send them my way please
find pit partition file from rom and tick the repartitioning and format option in odin then full reflash stock rom to device!
matkali said:
find pit partition file from rom and tick the repartitioning and format option in odin then full reflash stock rom to device!
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I've done all of that,
all i have to do now is a twrp restorationmaybe it will help restore the corruped partitions.
If you have an A720F can you perform a twrp backup to all partitions and upload them if possible
If you access to recovery mode use "Repartition tool for A5 and A7 2017" script 2 times to format your partitions (second time for come back to normal partition mode).
matkali said:
If you access to recovery mode use "Repartition tool for A5 and A7 2017" script 2 times to format your partitions (second time for come back to normal partition mode).
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thanks but I have done that as well but no success