My problem started when i tried to install a custom ROM. I was on Omega ROM v23 and all was fine but i tried to install other ROM and after the install was complete the phone turned off. I pressed power button but nothing. So i pulled the battery and the phone started. But my surprise is i have no signal and no IMEI??? I restored my nandroid backup from Omega ROM and my IMEI is back and signal but every time i turn on WiFi the phone reboots in Factory Mode and wifi turns off. After that i downloaded ES File Explorer to verify my EFS folder and is empty. So i said no problem i have my EFS backup. I did it manually and with 1 app from Google Play in .img and on tar.gz but the app doesn't restore my EFS backup. It says i have to use other app for that? However after downloading the app and restoring EFS it says i have to reboot but when the phone is back EFS folder is empty so no working. If i try to copy files it says there isn't available space. Please help. Any suggestion is appreciated.
PS: My model is N900w8 from Telcel with NH1 Bootloader and Baseband
Restore EFS through the restore option in recovery, or try rebuilding nv data via the service menu
Related
Hi, 1e thing i did was rooting device and backup efs folder all partition in efs pro
after that i installed phil recovery and make a compleet nandroid backup.
after 2 months playing with customs roms, and the latest was Omega 8, my signal was some times dropping and i'am getting the stopsign.
I find out that when the signal stops, my imei and baseband also disapeard. verry strange. So i tried to recover efs folder but this didn't solve the problem
even when i format efs folder en then restore, the efs folder is filled, but still no joy. also tried standard stockrom
where i made the first efs backup from and i tried nandroid restore, but still nothing.
I think there is nothing to do more and sent it to repair center
Can you try to flash Factory Firmware and see if your imei goes to 00/0.then restore your efs
cz4r3n said:
Can you try to flash Factory Firmware and see if your imei goes to 00/0.then restore your efs
Click to expand...
Click to collapse
i'm going to try that. Thanks :good:
I flashed factory-rom, that didn't work.
Also the service menu won't pop up *#0011# -> menu back -> menu keyinput 1
maybe it's hardware failure
Hy everyone,
I'm a little desperate now. my i9500 is stuck at Samsung logo even the animation sound that not complete, i had mokee rom 4.4.2, made a restore from a previous nandroid backup, barebone prism rom V3.0 worked perfectly, installed nandroid manager and restored some access point passwords, worked perfectly so far, my phone reached 1% in battery then turned off after a while. when i wanted to reboot it, the phone freezes in Samsung logo.
Recovery: Philz touch recovery
I tried everything that i know about,
1° reboot in revocery and restore from a previous nandroid backup (NOT GOOD)
2° reboot in recovery, perform a full wipe, restore from a working previous backup (NOT GOOD)
3° reboot in recovery perform a wipe reset (NOT GOOD)
4° restore via odin in download mode last stock firmware for my phone I9500XXUEMJ8 (NOT GOOD)
5° i tried mounting all partitions for check and .... Eroor mounting /efs!
i checked efs folder with aroma file manager ... 0 files inside :crying:
i had a previous backup for EFS found in kies in .tar.gz format
i tried to restore it with several methods
http://forum.xda-developers.com/showthread.php?t=2392632
guess what ?? NOT GOOOD
i tried manually to copy files in EFS folder and changed the permission for EACH file with the same permission from the backup in my laptop then i reboot in recovery, the files still inside but when i reboot the system, the files are gone
i've read somewhere that there is two type of efs , and the efs made by some old stock rom won't work for a new one (Personally i don't know but like i said i'm desperate) so i downloaded from sammobile the FIRST rom that was in my phone and put it via odin (Re partition was never checked) then i tried the methods above ... :crying::crying::crying:
because i only have .tar.gz i tried restore it and witout rebooting the phone ===> (EFS Folder not empty YET) made a backup in .img format so that i can restore in /dev/block/mmcblk0p3 still not good
so i REALLY need your help and plz do not ask me to go to service center, warranty binary status is 1
Thanks everyone and have a good day
Was i mistaken in the section or there is really no solution for my problem ??
solution
shinka110 said:
Was i mistaken in the section or there is really no solution for my problem ??
Click to expand...
Click to collapse
you need to flash a efs partition via odin. in tar format.
the your phone will boot normally. unistall knox and only then you could put your efs backup to the phone.
nefsation said:
you need to flash a efs partition via odin. in tar format.
the your phone will boot normally. unistall knox and only then you could put your efs backup to the phone.
Click to expand...
Click to collapse
where i can get efs in .tar? i have my old efs but in a single folder.
i have a big problem, more than a simple copy paste, but with prove i don´t miss anything.
this is my original problem and i´m still stucking there.
http://forum.xda-developers.com/showthread.php?t=2665161
Hi,
I have Galaxy S4 (I9505) and after official update, I have faced error of unknown baseband and lost IMEI (null/null). Problem was, that IMEI and baseband were working only, when I fully discharged phone, put it on charger and turned it on. But when I called once, I have lost IMEI and basbend suddenly, same for the second start after 0% battery. I have made EFS backup via terminal emulator and "dd" operation - (http://forum.xda-developers.com/showthread.php?t=2433966) and to successfuly recover EFS, I had to delete it first. But when I delete EFS and reboot, EFS folder is not empty but is populated from somewhere. I am not able to get into "permanent safe mode" so I am unable to restore EFS.
Anyone faced the same problem? Do you know, from where is EFS folder auto-populated? I have also tried old stock ROM, problem is I cannot downgrade to original ROM before update, it was 4.2.2 and I can't downgrade bootloader. Newest 4.3 ROM also doesn't solve the problem.
Thank for any ideas
Hmyzak
Anyone?
Hi Everybody,
I'm really disappointed. For the second Times, I've corrupted my EFS partition. IMEI is empty, as the baseband...
The first time that I had this problem, I could restore the EFS using the fabulous fix from Fireasusman : http://forum.xda-developers.com/showthread.php?p=47014662#post47014662
But this time, It didn't work.... I'm really really sad.
Before trying to restore the stock firmware ( My problem was coming when i tried to restore stock firmware before to sell it) i made a Nandroid backup with TWRP recovery. I've an EFS/MODEM backup in this Nandroid.
When I reboot into recovery, and go to restore, I can select EFS, and it seems restore It. It wrote : Restoring 2 partitions/Restoring EFS/restoring EFS2/restoring EFS3/EFS Done/Restoring Modem/ Modem Done...
But after reboot the problem is Still There...
I'm really Angry, I lost 400$ and I don't understand why my Nandroid Restore of EFS failed...
I also try to flash modem with ODIN but it still Failed.
Note: I was an temasek CM12 (android lollipop).
Thank you very much for every help.
1. Flash STOCK ROM and take a look how it works. Sometimes only flashing it recovers the EFS folder.
2. Next time use this APP for backup/restore your EFS.
Really thanks for your help.
But i've allready try to restore stock ROM. At least twice. But efs is still corrupt. And the phone never arrive to boot...
About how many time I can consider that flash stock ROM will not repair my EFS partition ?
I've allready done twice...
Ok... I solved my problem.
As I explain in first post, I'had a EFS backup with a Nandroid Backup. But when I restore with TWRP, the problem was still there. No pin, No baseband etc...
I only delete the EFS folder using root explorer. I reboot, and it was OK. EFS folder was rebuilt automatically.... No more complicated than that...
Good finding
pystolero said:
Ok... I solved my problem.
As I explain in first post, I'had a EFS backup with a Nandroid Backup. But when I restore with TWRP, the problem was still there. No pin, No baseband etc...
I only delete the EFS folder using root explorer. I reboot, and it was OK. EFS folder was rebuilt automatically.... No more complicated than that...
Click to expand...
Click to collapse
Because the IMEI is not stored in the EFS folder.
Guys i need help as I have lost my EFS folder. Summary of how it happened is as below:
Initially I had Note 4 Verizon version running Lollipop 5.0.1
I used a method to turn it into Developer Edition (DE) and I was successful in doing that.
Once got through that I installed customer Recovery (TWRP) and made a backup for it (including EFS folder and everything else)
After that I got SUPERSU installed and root access to my mobile.
Everything until this point was smooth and no issues until I installed XPOSED FRAMEWORK and my mobile got stuck on the boot screen.
After alot of hit and tries I used TWRP for Factory reset and WiPE DATA.
Since then I was totally lost in a boot loop.
I used ODIN with official ROM (downloaded through SAMMOBILE) for my variant and restored the boot but again my mobile went back to stock version.
Now the problem is that my phone gives me a message "FACTORY MODE IS ON ........................................."
Now my WiFi turns OFF automatically and everytime I bootup my mobile I have to enter passcodes for WiFi every single time.
I have again got it into Developer Mode and got the root access as well but when I check the EFS folder using TWRP, ROOT EXPLORER or any other software which has access to root files I can see that EFS folder is empty.
I even tried restoring the backup through TWRP (first time complete and 2nd time only EFS folder). It shows success but still EFS folder is empty.
Now I need support if anyone can either help me with the EFS file or help me restore the EFS file that I have available through TWRP backup.
In desperate need of help because I have tried every method I can find on this forum or after google results but none is working...
Any support to help it work will be very helpful and save me from losing my only source of mobile communication.
ThankS!!!
Try this:
https://play.google.com/store/apps/details?id=ma.wanam.efs
It saved me before =)
ledzpg said:
Try this:
https://play.google.com/store/apps/details?id=ma.wanam.efs
It saved me before =)
Click to expand...
Click to collapse
Dear this is a software to backup already existing EFS folder whereas my efs folder is totally empty...
Need someone to help me either with Verizon note 4 efs folder or help me on how to recover already backed up efs folder through TWRP..
Hello, I have the same problem with my sm-n910t. have you found the solution.. it would be a big help. thanks in advance.
Find the efs file compatible for your phone from google and install it into your phone using Odin