Hello,
I was disabling journaling on my device's partitions then after rebooting from the TWRP I found a very slow startup. After that I thought it a bootloop. So I installed the previous ROM which was DevBase, followed by many as Alexis and others they were all giving the same a bootloop or at least what I thought it was.
So I flashed a stock firmware but the true issue started after this the IMEI is invalid and showing as null.
I found an EFS backup inside of .backup/efs/efs_bqckup.img.tar inside of the OTG folder together with recent.img something like that.
I tried to Gunzip to restore on the /sda3 partition didn't work nor direct dd command worked for the .img
How can I restore my EFS or repair the IMEI in a legal way note that I've everything for the phone including it's IMEI.
Related
There are a number of threads throughout xda-developers, but I had a very long journey to find a fix that worked with my T-Mobile T989 Galaxy S2 phone. In a nutshell, sometime over the last week I somehow corrupted my /efs directory/folder enough so that it wouldn't mount. The symptoms I started to have was that I couldn't load any custom ROM without it going into a boot loop eventually. Even the backups that I saved would not work! I was able to use Odin to factory reset my phone back to 2.3.6 gingerbread, and it would run, but if I tried to load any ROM including going thru a Kies factory update, it would fail. (Note I still had a valid IMEI number displayed) Then I saw the failed to mount /efs error on the factory recovery window. So after many attempts to find and try a specific fix for my T989, I came across this thread in the Skyrocket phone section. This guy named icenight89 came up with a method to fix their phones, with a note that it will work on T989's as well.
The fix for me that worked was for me to factory reset to 2.3.6 via Odin. Then load in CWM recovery and then Super-SU to root the phone. Then download a file on icenight89's thread called EFSFix.zip and upload it to your phone. (Nandroid backup first) then boot into CWM recovery and install this .zip file, and reboot, and voila the efs partition is mountable again!! Here is the link to icenight89's thread and in there are the file links: http://forum.xda-developers.com/showthread.php?t=1611796
Hope this can help shortcut the fix for our phones for someone else who runs into this.
I have n7100, I had corrupted EFS partition, because of which my phone was stuck at samsung logo. I had no backup of EFS partition, so I flashed the EFS i got it from online. My phone was able to boot without any problem but Cell phone is not getting registered to provider because of IMEI.
Next I wanted to root the phone.
I flashed the root file (CF-Auto-Root-t03g-t03gxx-gtn7100) from odin and in haste immediately flashed the recovery file without waiting for the next reboot.
Usually the root file installs the stuff after the first reboot, in my case it didnt happen since I installed recovery on top of that.
Now I am facing problem in full flash with pit file. Odin is stuck in Set Partition, Get Partition Mapping.
I can access Download mode and recovery.
In recovery the following errors are shown
Cant mount /system
cant mount /efs
Is there anything I can do to make the full flash work?
Your eMMC chip is corrupted, or, worse and probably, you have SDS.
Try and flash a stock ROM
Change the USB cable
Hello,
I have a big problem with my H815. I've installed H-ROM_V30-PORT-V2.1 but now I have no signal / no service and my IMEI is "unknown".
The steps i did before:
1. Unlocked the bootloader with this tutorial:
https://www.youtube.com/watch?v=O64GfQORCaE&t=450s
2. Installed TWRP (twrp-3.2.0-0-g4.img)
3. Made a full backup with TWRP (efs, boot, system, cache, etc...) and copied the backup at my pc.
Then i wiped the phone.
4. Installed H-ROM
https://forum.xda-developers.com/g4/development/rom-h-rom-v30-port-t3672567
So the system is working well and booting, but I have no signal and my IMEI is "unknown" in the android settings.
I thought this could be not a big problem, because I made a TWRP backup. So I copied the backup-files back from my PC to the phone.
At TWRP I can choose the backup but then nothing will happen.
The screen shows:
Running Recovery Commands
Updating partition details...
...done
Full SELinux support is present.
MTP Enabled.
Thats all. But TWRP does not restore anything.
Can you please help me??? I have no idea what I could do now :crying::crying:
I forgot a very importent step.
At the end I rooted the phone with SuperSU. And that's the step, when my IMEI got lost.
I used UPDATE-SuperSU-v2.76-20160630161323.
Is there a way to root the phone without loosing the imei???
try this: https://forum.xda-developers.com/showpost.php?p=73489308&postcount=2
Hello, I've buyed a Moto z2 play. I unlock the phone, I do a nandroid backup, then I flash Oreo 64 bit, then I reflash stock nougat. At this point, cause I'm an idiot, I make a format, so I loose my backup. I try to flash this and that but nothing. Fortunately I download a persist partition's backup (from another device) from the web and now my 2 IMEI are 0, i can't rewrite they with original IMEI I have (I think), I lost my serial number (?) and I lost my 4g (LTE).
I think it is because I've format a persist partition (perhaps) or other important partition.
I need help if anyone can rewrite a persist file with my original IMEI or if anyone can share this partition backup. I've a xt1710-09 (Italy).
Is it possible to relock bootloader and send phone to lenovo or I can brick the device?
Thanks
http://ilmiodiarioprivato.altervista.org
the folder is still in your system is recommended to find more about the subject, I managed to recover the imei of a moto.g4play do not lose the imei completely
you need a version of TWRP that is compatible with write twrp correctly and take a backup of your phone (this is achieved by formatting the persistent area and loading a stock software with the correct commands you have to verify your imei from fastboot, barcodes section , if it still appears, you can recover it
Thanks for your reply. When I came back home I try to restore the partition (or brick the phone)!
http://ilmiodiarioprivato.altervista.org
I`ve lost efs. Can`t get it back. the phone stuck at bootloop. tried to restore using adb command. it seems that is flashes back the modemst1 modemst2 but after a reboot they are lost again.
I also have qcn backup. but I`m not able to do anything with it.
If it happened spontaneously, then my bet is on a hardware fault.
If it is the result of something you did, then please describe as much as possible.
I did it and then the phone stuck at bootloop. I used TWRP for erasing EFS. Nothing helps like flashing different version of factory images. except the android 11. for the first boot the phone starts with no imei no wifi no mac address then if I reboot for the second time after flashing android 11. it bootloops again
Sounds like you've got a backup - if so, it should be possible to restore.
I haven't been in that situation myself, but I would try fastboot, something like described here:
How to Backup and Restore EFS Partition on any Android device
EFS is a partition on your Android device that stores all the important data associated with your phone. For instance, these data include the IMEI number,
www.getdroidtips.com
But this is for different phone, so you may have to change partition names.
I do not have my original efs but got it from another pixel 2 xl. I thought it should work but it didn`t. it flashes efs modemst1 modemst2 fsg fsc. but after reboot those files disappear
I do not know if installing the stock rom with the Deuce tools from here helps
https://forum.xda-developers.com/t/...very-flashing-script-v5-0-05-29-2019.3704761/