HELP!!!
After i tried using App2sd on my rooted S3 I9300 (Intl version), my phne went into a boot loop, and apparently i tried fixing it by installing a new rom..now, here comes the real problem..I installed a wrong ROM, it seems (although the rom is for i9300, it is for a different region)..
So after installing this Rom using odin, i get the message "e: failed to mount efs folder"..
Now im lost, especially because i have no backup of any kind...Is my efs folder corrupted??? and the phone still wont go past the samsung logo..only hope i have is that i can enter into recovery mode
Any suggestions ??? Please..anything...
http://forum.xda-developers.com/showthread.php?t=2393289
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i am a international galaxy s3 user I9300, i have lost my efs folder while flashing ROM, i messed up everything . i have tried flashing with Odin also does not work, it passes but does not boot stucked on the Samsung logo. when i put it on recovery mode it shows efs failed to mount. while reading some thread here i found that it can be recovered by flashing through flash box, so will the handset be recovered by flashing through flash box like z3a... plz helppp..
Read this:
http://forum.xda-developers.com/showthread.php?t=2393289
Unless you have an efs backup, or flashing an EMG modem enables your efs partition to be read again, then you are basically screwed and need a service centre.
it started when i was using offical firmware jelly bean 4.1.2 (I9100XXMS1) rooted and i wanted to flash Cyanogenmod 11
to do so you need CWM recovery 6.0.4.4 at least but i had philz touch cwm based 5.0.x.x. (that kind of cwm i had with root)
so i downloaded CWM recovery 6.0.4.4, copied it to my sd card, entered recovery mod and flashed that CWM recovery 6.0.4.4..
so if im not wrong i flashed different version CWM recovery that i had..
because of it bootloop started.
somehow i managed to restore my phone back to working status. i had a lot of problems like "cant mount E:/ efs" and bootloop all the time but now almost all is ok
almost except IMEI...
i used some SGII_repair app so now i have signal but my IMEI is different than before.. no idea how to restore it.. why i need it? cause i cant enter my sim contatcs
and no i did not backed up my /efs folder before so i cant just copy nv_data.bin, nv_data.bin.md5
no idea what to do now.. i checked every topic about it and still dont know how to fix it
help..
No IMEI & no EFS backup = service centre or local mobile repair shop.
but according to that [GUIDE] Recover your IMEI in 9 steps.
i dont need imei or efs backup.. i did same as on guide and it did not worked.. still IMEI changed to 004999010640000
Exactly my point
well at least phone is working..
i can call and ppl can call me..
but its not my IMEI so its not good..
if they can do it at service centre or local mobile repair shop i cant do it myself?
galaxy s2 9100 e:failed to mound/efs
this is one of my friend mobile
when he give me this its working but no imei with 4.0.3
then i tried to update to 4.1.2 after that it just rebooting
then am all most read and try all threats about this prob but still it unfixed
i tried all most all the way to get efs. i have no backup of that. can i manually write down that? bcz before i get an lenovo like this then i just manually enter the imei with mtk droid tools
now the condition is:-
cwm mode with cyanogenmod 4.4.2 rom boot loop
model GT-I9100
What have you tried? Bootloop...system,data,preload,cache format then flash the rom/gapps this should make it boot up ok. Is imei blocked? Have you asked you're friend? Sounds like it to me
I have a now bricked Samsung Grand Neo GT-i9060. This happened because after rooting it I tried to unlock the bootloader using EZunlock app. After restart it wont start and was stuck at the Samsung Boot Logo. I didnt happen to take a backup of the EFS folder. On the Android(3E) Recovery Screen it shows "E: Cant Mount EFS(Invalid Argument). I have another GT-i9060. I tried flashing Stock ROM using ODIN and repeatedly and tried Kies also. Every time it will get stuck at the android updating and then say EFS not mounted. I was thinking of using another EFS folder of same modelGT-i9060 and edit it for my IMEI number. Can I do say and if possible at all, how do I flash the edited EFS folder back into my bricked Grand Neo? Please help as i havent made any backup of my EFS folder.
Hello All,
i'm trying to help my friend to unbrick a S3, it just stuck at Samsung Logo forever. I tried to root it, install TWRP, flashed a custom rom (stable as per reviews), reboot it and no go, redo everything again with a stock rom, and still no go. Can anyone help? Thanks in advance.
One thing i found out that when i boot to recovery mode (original android) it does have a error message saying "E: failed to mount /efs (Invalid argument)" will this be the cause ?
rayzx said:
One thing i found out that when i boot to recovery mode (original android) it does have a error message saying "E: failed to mount /efs (Invalid argument)" will this be the cause ?
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Hi rayzx,
according to what I know, "EFS" is the partition that holds the IMEI (International Mobile Equipment Identity) of your phone. This IMEI number is unique to your phone (Dual-SIM Phones have two IMEI Numbers though). Flashing and reflashing ROMs only will not help here, since flashing (proper) ROMs will/should leave the EFS partition untouched anyways. If that partition gets destroyed / corrupted (commonly referred to as "IMEI-Brick") you will have a hard time restoring it - unless you have a complete backup of the (Stock) ROM INCLUDING its EFS partition. You would have to flash it back up onto the device. Without having that kind of backup, special (expensive) equipment and licensens for doing this are required. Since tampering with the EFS Partition (or tampering with the IMEI) is illegal in most (if not all) contries, the only and easiest way I see is sending the device in for repair to SAMSUNG or a specialized & licensed repair shop - as far as I remember you would need to povide/send the phone itself and the sticker belonging to the phone with its IMEI Number clearly visible.
@rayzx: damaged efs-data don't prevent booting. So take latest firmware & Odin from sammobile.com, flash it. If Odin finshes with 'succeeded', boot into recovery and exec factory reset. Phone should boot then. If you see a factory IMEI 0049..., try KIES-repair function.
If this fails: service center (as said above).
rp158 said:
@rayzx: damaged efs-data don't prevent booting. So take latest firmware & Odin from sammobile.com, flash it. If Odin finshes with 'succeeded', boot into recovery and exec factory reset. Phone should boot then. If you see a factory IMEI 0049..., try KIES-repair function.
If this fails: service center (as said above).
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Agreed..
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I think your emmc is dead i had the same probleme but i could get into recovery.. try to glash a pit file if odin stuck u need to change the motherboard