Lost IMEI while off over night? - Nexus S Q&A, Help & Troubleshooting

Hi all! I quiet annoyed with all this (especially cause I am using my Defy instead)..
Two days ago before sleep I turned the mobile off (NS i9200), and when I woke up, turned on again.. For my surprise, no signal.. Rebooted, and nothing..
Since I upgraded from GB to ICS that has not happened, I was using Nexus Beam for about 2 weeks and all was fine..
And when I try to see my IMEI, shows up de generic one, 00499...
I have tried,
http://forum.xda-developers.com/showthread.php?t=1398757
http://forum.xda-developers.com/showthread.php?t=1264021
http://forum.xda-developers.com/showthread.php?t=1264021
N nothing helped..
I also reverted to the stock ROM, locked and unlocked the bootloader (so in that way ALL date and partitions were going to be wiped), and rooted again..
And I have done the process also using ICS and GB 2.3.3..
Any ideas?
Many many thanks..
EDIT
I got a backup of EFS that I found in a folder "efs_autobackup", called by "efs-backup.tar.gz", that has been created Sat 24 Sep 2011..

So why not put the efs backup folder back into place, and rename it EFS? ...

dictionary said:
So why not put the efs backup folder back into place, and rename it EFS? ...
Click to expand...
Click to collapse
Already done and nothing.. I might need to change something else, like permissions?

thomasck said:
Already done and nothing.. I might need to change something else, like permissions?
Click to expand...
Click to collapse
I think you might need to replace the efs files, but also delete three files in that folder. Can't remember which ones, but it's in window7's radio thread in the development section.
For kernel benchmarks and more, see here: http://goo.gl/mpeHI

bedalus said:
I think you might need to replace the efs files, but also delete three files in that folder. Can't remember which ones, but it's in window7's radio thread in the development section.
For kernel benchmarks and more, see here: http://goo.gl/mpeHI
Click to expand...
Click to collapse
I will have a look, thanks..

Any help guys? I can not believe it's gone..
I cannot afford another good mobile now
Please..

Related

[Q] Recovering/Replacing the IMEI number

So I just received a replacement phone via warranty from T-Mobile.
I have upgraded to Gingerbread 2.3.6 and am rooted.
I just realized now that the IMEI number in Android is 00000000.
I'm not sure if it was like this before I started tinkering with it or if it happen as a result of the root/upgrade.
Anyways, I have the sticker that gives me the IMEI number under the battery, I just need to know if/how I can get this back into my phone. I've read something involving a HEX editor? But I don't know what or how.
Any advice and links would be greatly appreciated.
A little more information. I originally noticed that the IMEI was set at 0000000 because I tried to install Swype beta and it says cannot install on an android emulator. Further googling of this lead me to realize that swype wasn't recognizing my phone as a legit android OS because the IMEI number was missing...so yea. This is where I am now.
CoBfan1987 said:
A little more information. I originally noticed that the IMEI was set at 0000000 because I tried to install Swype beta and it says cannot install on an android emulator. Further googling of this lead me to realize that swype wasn't recognizing my phone as a legit android OS because the IMEI number was missing...so yea. This is where I am now.
Click to expand...
Click to collapse
Did you make any backups before upgrading to Gingerbread 2.3.6?
ADD: Here is a quote off another thread with this problem:
I got my IMEI back. I had my nv_data.bin.md5 and nv_data.bin backed up when I unlocked my phone after I got the new one from Samsung. I just coppied them the the efs folder and my IMEI is back."
Hope it helps! And hope you have a back up... maybe even from your other phone?? Or before you upgraded the phone you have.
Should they be in this directory?:
/efs/root/afs/settings
because those are the only ones i can find
Sent from my SGH-T959V using XDA App
CoBfan1987 said:
Should they be in this directory?:
/efs/root/afs/settings
because those are the only ones i can find
Sent from my SGH-T959V using XDA App
Click to expand...
Click to collapse
Yes.
10char
So I have the nv_data.bin and nv_data.bin.md5 files from my old phone and from my new phone. Sorry, I wasn't thinking enough to make a backup of these files when I upgraded to Gingerbread using Samsung Kies.
So now, with these two sets of files. Do I want to take the old (and good) files from my old phone and replace the files on my new phone. Won't that transfer the old phone's IMEI though?
CoBfan1987 said:
So I have the nv_data.bin and nv_data.bin.md5 files from my old phone and from my new phone. Sorry, I wasn't thinking enough to make a backup of these files when I upgraded to Gingerbread using Samsung Kies.
So now, with these two sets of files. Do I want to take the old (and good) files from my old phone and replace the files on my new phone. Won't that transfer the old phone's IMEI though?
Click to expand...
Click to collapse
First - Is your phone working?
Second - Have you tried a factory reset if your phone is working?
Third - Try a factory reset and reflash a stock rom.
Fourth - If you phone is not working give it a shot and let us know
Yes the phone is working fine. Just with the IMEI missing, I can't get Swype beta to install (I'm assuming that is the problem)(That the only problem I've found so far). Would a factory reset restore the bin files and IMEI number then?
CoBfan1987 said:
Yes the phone is working fine. Just with the IMEI missing, I can't get Swype beta to install (I'm assuming that is the problem)(That the only problem I've found so far). Would a factory reset restore the bin files and IMEI number then?
Click to expand...
Click to collapse
What I have read is a factory reset or reflashing a ROM (or both if all else fails) should restore your IMEI. I have also read flashing the original ROM that came on the phone has worked. You may try that if the factory reset does not restore it.
Since your phone is working don't copy the files over from your other phone
Do let us know your progress.
How do I obtain the original rom, is it posted here in the forum?
CoBfan1987 said:
How do I obtain the original rom, is it posted here in the forum?
Click to expand...
Click to collapse
Did you do the factory reset yet?
resetting as we speak. Report back in a sec
okay reset is done and IMEI is still 0000000000
CoBfan1987 said:
okay reset is done and IMEI is still 0000000000
Click to expand...
Click to collapse
Try doing the factory reset again and flashing back to froyo
http://forum.xda-developers.com/showthread.php?t=1106822
assuming the was what came with the phone?
I'm hitting the same very disgruntling problem that I did in the past when I tried to use CWM. When I try apply update from sdcard and I choose my update.zip file I just get E:signature verification failed and I can't proceed from there....
CoBfan1987 said:
I'm hitting the same very disgruntling problem that I did in the past when I tried to use CWM. When I try apply update from sdcard and I choose my update.zip file I just get E:signature verification failed and I can't proceed from there....
Click to expand...
Click to collapse
What color is your recovery?
blue
"Android system recovery <3e>
Samsung Recovery Utils
- for BML -"
CoBfan1987 said:
blue
"Android system recovery <3e>
Samsung Recovery Utils
- for BML -"
Click to expand...
Click to collapse
You need a custom kernal to flash from CWM. That is why you are getting that error. Let me look for an odin flash back to froyo stock for you.
On a side note - I have read taking your battery out for 10 mins has worked for some. Since your phone is working you may try that while we continue to look for a fix.
Sucks that this kind of problem would happen from following these instructions. I figure it would all automated and such...
http://support.t-mobile.com/docs/DOC-1810
and my battery is out now.
CoBfan1987 said:
Sucks that this kind of problem would happen from following these instructions. I figure it would all automated and such...
http://support.t-mobile.com/docs/DOC-1810
and my battery is out now.
Click to expand...
Click to collapse
I say before going back to froyo try raver's ROM-ODIN-2.3.6-Gingerbread Offical Maybe a stock reflash will work. I have read a thousand ways that have work for different people now. You have done a few. Try this as it is easier than going back to froyo for now. Let your battery charge first.
Maybe kies just f-ed up your imei. And where are the big dog's when you need them? bhundven/FBis251?
Did you just root? Or did you use an app to unlock your phone as well?

[SOLVED] Vanished IMIE number

After flashing final fixed VB i have noticed that when i look up phone info at the IMIE number it reads as000000000000000 and IMEI SV is05. Not sure if it is from this rom because i have flashed multiple roms and of course i have always done major cleaning before flashing but this is the first time that i have needed to look up the IMEI number.
Any nandroid backups?
no just use titanium for apps and data
Read...
There is a guide in GS4G section. Nobody is going to hold your hand and walk you through something that has already been laid out step by step
anoymonos said:
no just use titanium for apps and data
Click to expand...
Click to collapse
Good luck. Without a backup there aren't many easy options. Most of the options you do have seem to be luck of the draw attempting the many theories to fix it. If you do, however get lucky, backup your damn efs folder.
Did you use SGS Kernel Flasher by chance? I think that might make a backup of the files you need... or I am talking out of my ass.
I backed up my sd card on computer before i even rooted but no nandriod backup. Ill give the thread a read and thanks.
Try taking out the battery for 10 minutes first.
Sent from my SGH-T959V using XDA App
vgcraze said:
Try taking out the battery for 10 minutes first.
Sent from my SGH-T959V using XDA App
Click to expand...
Click to collapse
Hell... hold the power button down as Thomas explained in the gremlin thread to clear whatever it was we are clearing. Hmmm.... a light bulb just went off - I suppose that is why it resets the IMEI for some and fixes it.
I tried the gremlin fix with no luck where exactly can i find this efs folder
That is the backup you needed to make before doing anything to your phone. Try the taking out your battery for 15 mins and holding down the power button for 15 seconds. It has worked for some.
Also try flashing back to stock froyo and see if kies mini will let you upgrade. Make sure you aren't rooted when you use kies.
Is your phone making/receiving calls?
I have tried battery removal gremlin fix and yes my phone still works but it is causing my qik account to not be validated. I wiil try the kies method next. I made a backup of sd card on computer before flash but cant locate efs folder anywhere
Efs is a system folder. It is already corrupt. Which happens and now you know you need to back it up.
solved please close
Issue resolved thanks to Odia.
anoymonos said:
Issue resolved thanks to Odia.
Click to expand...
Click to collapse
They don't really close threads. Just add [SOLVED] to the title of the thread.
cant figure out how to edit title, and i thought that was the rules to follow.
anoymonos said:
cant figure out how to edit title, and i thought that was the rules to follow.
Click to expand...
Click to collapse
Just click edit in your original posts. And rules actually say type [RESOLVED] in the title but we have kinda changed it to [SOLVED].
lumin30 said:
They don't really close threads. Just add [SOLVED] to the title of the thread.
Click to expand...
Click to collapse
How did you solve it? I also have the same problem.
Thanks
Do you have any nandroid back ups?
lumin30 said:
Do you have any nandroid back ups?
Click to expand...
Click to collapse
I thought i backed up the whatever file in esf folder, but when I recovered it, it didn't work either...

For those who have no baseband and null Imei on their i997...

Im not sure were to put this so called tutorial so mods feel free to move it to were it belongs if its not supposed to be here. I was having a big issue with my Samsung i997 thats was showing no baseband on settings, No imei null/null and of course didnt have any signal. I started a couple threads about things related to that. No luck, until a member called Truckerglenn pointed me to a efs .tar file he had made that fixed his phone.
So before i start, credit for the efs file goes to Truckerglenn i had nothing to do with that. Then, i want to make this clear, This worked on my i997, it doesnt mean it could work on other phones but for some reason i think it will. I messed up mine on purpose a couple times after i solve it just to see if it was a real solution or just luck. It worked every single time like a charm. With that said, i got to make clear i didnt have a copy of my original efs file. I have deleted the efs file a couple times also. So i think none of you could mess a phone worst than i did, and i still managed to bring it back to life using this method.... So lets talk about what i did:
First download Truckerglenns efs .tar file located here:
http://forum.xda-developers.com/showthread.php?t=1438113
In my case i used the infuse unbrick ODIN file so i dont know if it works with any other firmware or not.
Open the ODIN file located on the infuse unbrick files and click efs clear, yes i know it sounds very risky and people have made clear that is not recommended but hey, you cant mess up your phone worst than you already have so. Anyways, put the infuse ODIN files were they belong, pit, pda and phone. Then here comes the tricky part, i used the Truckerglenn file in the csc box to flash it with the unbrick files.
Click start and the phone will flash the stock Froyo for the i997, wait until the flashing ends. Then when the phone reboots into recovery before hitting reboot go to wipe data/factory reset and click it. Then you can hit reboot phone and if youre lucky enough you will have your signal, restored imei number and baseband version.
Like i said this worked for me and i cant asure you it will work for you. But after all those weeks i spent dealing with this without success and having deleted efs many times and messing the phone that much, i didnt have anything to lose. Also thank Truckerglenn for his efs if this work on your phone, after all im just giving you an idea on how i made it work on mine but i didnt create a file or anything i just flashed it the way i just told you. Good luck guys and keep up the good work!
this happens to me as well, but flashing an efs didn't help me. any other ideas?
Step by step??
enelyam said:
Im not sure were to put this so called tutorial so mods feel free to move it to were it belongs if its not supposed to be here. I was having a big issue with my Samsung i997 thats was showing no baseband on settings, No imei null/null and of course didnt have any signal. I started a couple threads about things related to that. No luck, until a member called Truckerglenn pointed me to a efs .tar file he had made that fixed his phone.
So before i start, credit for the efs file goes to Truckerglenn i had nothing to do with that. Then, i want to make this clear, This worked on my i997, it doesnt mean it could work on other phones but for some reason i think it will. I messed up mine on purpose a couple times after i solve it just to see if it was a real solution or just luck. It worked every single time like a charm. With that said, i got to make clear i didnt have a copy of my original efs file. I have deleted the efs file a couple times also. So i think none of you could mess a phone worst than i did, and i still managed to bring it back to life using this method.... So lets talk about what i did:
First download Truckerglenns efs .tar file located here:
http://forum.xda-developers.com/showthread.php?t=1438113
In my case i used the infuse unbrick ODIN file so i dont know if it works with any other firmware or not.
Open the ODIN file located on the infuse unbrick files and click efs clear, yes i know it sounds very risky and people have made clear that is not recommended but hey, you cant mess up your phone worst than you already have so. Anyways, put the infuse ODIN files were they belong, pit, pda and phone. Then here comes the tricky part, i used the Truckerglenn file in the csc box to flash it with the unbrick files.
Click start and the phone will flash the stock Froyo for the i997, wait until the flashing ends. Then when the phone reboots into recovery before hitting reboot go to wipe data/factory reset and click it. Then you can hit reboot phone and if youre lucky enough you will have your signal, restored imei number and baseband version.
Like i said this worked for me and i cant asure you it will work for you. But after all those weeks i spent dealing with this without success and having deleted efs many times and messing the phone that much, i didnt have anything to lose. Also thank Truckerglenn for his efs if this work on your phone, after all im just giving you an idea on how i made it work on mine but i didnt create a file or anything i just flashed it the way i just told you. Good luck guys and keep up the good work!
Click to expand...
Click to collapse
So, I am having same problem as u were. One thing that I want to make sure is do i clear efs and then flash ?? or just click the box on the efs clear and put everything and flash it??
So here is first option - You check on the clear efs box and then click "start". After it's finished, put other files and click "start" button again.
Here is second option - You check on the clear efs box then put all files and click "start" button and done.
which one is correct way to do this process??
zpzp96 said:
So, I am having same problem as u were. One thing that I want to make sure is do i clear efs and then flash ?? or just click the box on the efs clear and put everything and flash it??
Here is second option - You check on the clear efs box then put all files and click "start" button and done.
which one is correct way to do this process??
Click to expand...
Click to collapse
It's been a while now, but if I remember the Clear EFS box was checked, so go with option 2.
But hey, right now your phone is 'FUBAR'. Try different settings if one doesn't work, maybe another one will.:good:
Different Settings??
Truckerglenn said:
It's been a while now, but if I remember the Clear EFS box was checked, so go with option 2.
But hey, right now your phone is 'FUBAR'. Try different settings if one doesn't work, maybe another one will.:good:
Click to expand...
Click to collapse
OK, I just tried option two, and it didn't work.
Now, what should I try?? I really need your help for this.. I have no idea what I've done on my phone to cause this situation, plus I have no idea what is worng with this phone..
please help me
Try option one.
I'm planning my escape from the digital world!
EFS
Truckerglenn said:
It's been a while now, but if I remember the Clear EFS box was checked, so go with option 2.
But hey, right now your phone is 'FUBAR'. Try different settings if one doesn't work, maybe another one will.:good:
Click to expand...
Click to collapse
Thanks Truckerglenn - you saved my phone:good:
Ok, my phone got fixed by AT&T. But it wasn't software problem. My radio chipset was burnt. I checked and when AT&T saw that, they just replaced my phone to new one. For free. Pretty happy now. Thanks for help tho
Thanks!
OMFG...I bricked my Infuse a while back and I thought all hope was lost. I have bought a Note since then but I wanted to sell it and wait for the Note2 while I could still get a pretty penny for it.
This worked like a champ.
I basically followed your instructions using the Unbrick package here:
http://forum.xda-developers.com/showthread.php?p=27286083#post27286083
I also checked the EFS clear checkbox. I didn't have to factory reset from recovery either. It just rebooted and I popped in my SIM and it worked!
So I haven't gotten to the stage where I do not have signal... but do plan on moving my infuse from 4.0.4 to 4.1.1. Through this process, it has been noted that you could lose efs. So before I tried to install the rom, I backed up my efs through root explorer. Within this app, all I did was copy my whole efs file and pasted it to my SD card. After this, should my efs be fully backed up? And if I were to install jb and WERE to lose signal, how would I go about restoring it? My efs is on my internal storage..
Thanks
Sent from my Nexus 7 using xda app-developers app
i don't know why it does not work for me =(
When I check my IMEI, it says null/null. I tried the mentioned fix but not luck. Please help.
vires90 said:
When I check my IMEI, it says null/null. I tried the mentioned fix but not luck. Please help.
Click to expand...
Click to collapse
I was having the same problem. What room are you on/trying to go to?
I was trying to flash slim bean beta 2 and encountered the same problem.
I Odin back to stock, flashed cm9, flashed Beta 2...
Loss IMEI...
My solution was to flash CM 10, THEN flash beta 2.
No problems since then.
Sent from my SGH-I997 using xda app-developers app
I just flashed slim bean back on my infuse and when it booted up i saw that i had no signal so i did the whole efs thing on odin.. check the EFS box then start but it didn't work for me.. Can someone help me please
I have this i997 infuse 4G with symbols instead of IMEI... I flashed this efs.tar, and now it's showing a fake IMEI. It's not my original IMEI. Still no signal. How can I restore my original IMEI?? Please help!!!
any way to get imei back without going all the way back to stock? running slimbean
TokyoLee said:
I just flashed slim bean back on my infuse and when it booted up i saw that i had no signal so i did the whole efs thing on odin.. check the EFS box then start but it didn't work for me.. Can someone help me please
Click to expand...
Click to collapse
@TokyoLee
It would be best if you informed us of the upgrade path you took.
Slim ROMs (I am assuming you are trying to flash a JB 4.2.2) are known to cause loss of IMEI if flashed directly from ICS. Best solution would be to flash a CM10 and then a CM10.1 before flashing SlimBean. I have followed this path and have had no problems although I have gone on to Rootbox 4.2.2.
scott.hart.bti's Unofficial CM10.1 post has instructions for the proper upgrade path, see here: http://forum.xda-developers.com/showpost.php?p=28842232&postcount=1
andros11's "[Guide] How to Flash Jellybean" here: http://forum.xda-developers.com/showthread.php?t=1878458
is an essential and important read to avoid any IMEI snafus.
Also, and this important since almost every JB ROM thread mentions it at one point or another: REMOVE your external micro-SD card from the device before flashing a JB ROM.
Hope this helps.
---------- Post added at 01:20 PM ---------- Previous post was at 12:56 PM ----------
feiereisztitus said:
I have this i997 infuse 4G with symbols instead of IMEI... I flashed this efs.tar, and now it's showing a fake IMEI. It's not my original IMEI. Still no signal. How can I restore my original IMEI?? Please help!!!
Click to expand...
Click to collapse
You may have to start fresh from GB [or Froyo]. That would be the best recommendation.
qkster's posts are valuable in how to get back to GB. See here: http://forum.xda-developers.com/showthread.php?t=1524081
and especially here: http://forum.xda-developers.com/showthread.php?t=1437548
---------- Post added at 01:22 PM ---------- Previous post was at 01:20 PM ----------
TeamHackura said:
any way to get imei back without going all the way back to stock? running slimbean
Click to expand...
Click to collapse
Unless you have your EFS backed up which you can flash via ODIN or Heimdall it is impossible to get tour IMEI back.
Best is to go all the way back to GB.
Called at&t Sim cards shot not the usual imei probs
Damn how annoying
Sent from my SGH-I997 using xda app-developers app
can i use this Efs on galaxy R to repair unknown baseband & Blank imei????
kunnaliskinng said:
can i use this Efs on galaxy R to repair unknown baseband & Blank imei????
Click to expand...
Click to collapse
Do not even think about doing such a silly thing. This is an Infuse specific efs. You cannot flash it to the I-9000 or I-9100, for example. The partitions are different on different Samsung phones, they are not necessarily interchangeable.
Unless there are clear instructions available, you could end up with a very expensive brick.

[Q] Lost IMEI

Guys, need some help here.
I´m noob, After try some custom Roms, scripts, kernels, etc, I lost my IMEI. Device is working fine, but can make emergency calls.
Try many things to recover it, i flash a froyo stock rom, GB stock, try diferent programs and read a lot here in XDA.
Cant find EFS folder, even using Root Browser.
I didn´t know that was need to back up the EFS folder. I only had CWR backups, and even this not works.
Maybe there something especific for Galaxy Fit?
Thanks for any help!
nisiomorais said:
Guys, need some help here.
I´m noob, After try some custom Roms, scripts, kernels, etc, I lost my IMEI. Device is working fine, but can make emergency calls.
Try many things to recover it, i flash a froyo stock rom, GB stock, try diferent programs and read a lot here in XDA.
Cant find EFS folder, even using Root Browser.
I didn´t know that was need to back up the EFS folder. I only had CWR backups, and even this not works.
Maybe there something especific for Galaxy Fit?
Thanks for any help!
Click to expand...
Click to collapse
Try install stock ROM with 4 files via ODIN, after CWM via ODIN and after custom ROM which you want.
Tried exactly this using a stock froyo rom, doesn´t work...
nisiomorais said:
Tried exactly this using a stock froyo rom, doesn´t work...
Click to expand...
Click to collapse
Are you tried Gingerbread with 4 files?
No, i tried Gingerbread (one package) and Froyo (4 files). Is there any diference?
nisiomorais said:
No, i tried Gingerbread (one package) and Froyo (4 files). Is there any diference?
Click to expand...
Click to collapse
I do not know. After this what I suggested, custom ROMs should work normally.
I will try again, where i can find GB in 4 files?
thanks!
nisiomorais said:
I will try again, where i can find GB in 4 files?
thanks!
Click to expand...
Click to collapse
Here: http://www.sammobile.com/firmware/
In Search write s5670, and download ROM for your location.
Ahhh this is something that even I was perplexed with...
A lot of people have reported this already, but we haven't made headway in this area...
In samsung phones, IMEI is either in efs or in csc, but none of us have had a closer look at this...
Hopefully, we'll be able to have ways to backup imei in the future...(no promises, though)
I hope too, for now I'm trying many ways to recover my IMEI, nothing works...
Updating: I use EFS Pro V2 http://forum.xda-developers.com/showthread.php?t=1308546 , and finaly have my IMEI back. I post it cause coud be helpful for others.
nisiomorais said:
Updating: I use EFS Pro V2 http://forum.xda-developers.com/showthread.php?t=1308546 , and finaly have my IMEI back. I post it cause coud be helpful for others.
Click to expand...
Click to collapse
Can you be a bit detailed?
Maybe list the steps.
This would help a lot of people.
Well, sorry for my bad english, will try to explain step-by-step: i instaled the app (EFS Professional) in my notebook, conect my device via USB, debuggin, ADB too.
Open the app on computer, select Qualcom.
Click on Qualcom NV Tools, a new box will apear.
Click Connect.
First i try Imei Repair box, insert manally the IMEI number and click Write IMEI,doesn´t work (and i don´t know if to digit IMEI number was neccessary, but just in case)
Close this box, go back to initial box and click NV Restore. The fone will reboot and it´s done. IMEI original number was restored.
I don´t know if maybe just clicking NV Restore as first step will do all the job, maybe. But I was "exploring" the options and thats works for me.
I hope it be helpfull
nisiomorais said:
Well, sorry for my bad english, will try to explain step-by-step: i instaled the app (EFS Professional) in my notebook, conect my device via USB, debuggin, ADB too.
Open the app on computer, select Qualcom.
Click on Qualcom NV Tools, a new box will apear.
Click Connect.
First i try Imei Repair box, insert manally the IMEI number and click Write IMEI,doesn´t work (and i don´t know if to digit IMEI number was neccessary, but just in case)
Close this box, go back to initial box and click NV Restore. The fone will reboot and it´s done. IMEI original number was restored.
I don´t know if maybe just clicking NV Restore as first step will do all the job, maybe. But I was "exploring" the options and thats works for me.
I hope it be helpfull
Click to expand...
Click to collapse
Have a couple of thanks, coz this was helpful.
I'll ask around if somebody has lost their imei and we'll try to cross check this, make it noob proof and then have it added to my guide to help the poor souls who might need this in the future
a.cid said:
Ahhh this is something that even I was perplexed with...
A lot of people have reported this already, but we haven't made headway in this area...
In samsung phones, IMEI is either in efs or in csc, but none of us have had a closer look at this...
Hopefully, we'll be able to have ways to backup imei in the future...(no promises, though)
Click to expand...
Click to collapse
We do not hav EFS partition in ROM's that are released now and i dont see that y..... But afaik for the OP's concern he could flash some old FW which has csc file in it which might help him regain his IMEI

[Q] how to restore the automatic backup of efs folder take by ROM

hello everyone..
a couple of days earlier i had flashed a CM 10.1 JB rom for i9003
and everything was working well... kudos to developers.
but then the phone turned itself off automatically and when i rebooted it it showed me no network..
further checking in about phone i saw there was no imei and no baseband and no service obviously
further after a bit research on xda i found out somehow my efs folder got corrupted...
i have a backup of that folder on my pc.. this backup was of a month ago when phone was working fine..
and i tried the possible ways to replace the efs folder with root explorer etc.. nothing turned up.
i really need help regarding restoring that efs folder..
thank you.
Nityam
Nityam said:
hello everyone..
a couple of days earlier i had flashed a CM 10.1 JB rom for i9003
and everything was working well... kudos to developers.
but then the phone turned itself off automatically and when i rebooted it it showed me no network..
further checking in about phone i saw there was no imei and no baseband and no service obviously
further after a bit research on xda i found out somehow my efs folder got corrupted...
i have a backup of that folder on my pc.. this backup was of a month ago when phone was working fine..
and i tried the possible ways to replace the efs folder with root explorer etc.. nothing turned up.
i really need help regarding restoring that efs folder..
thank you.
Nityam
Click to expand...
Click to collapse
Just flash back to stock rom in this sequence. first flash xxkpe (with .pit file) then ddlf2. Many times IMEI gets restore just by flashing stock rom.
vishal24387 said:
Just flash back to stock rom in this sequence. first flash xxkpe (with .pit file) then ddlf2. Many times IMEI gets restore just by flashing stock rom.
Click to expand...
Click to collapse
i tried that..
nothing turned up... !!
and when i approached samsung service center they asked me to replace the motherboard which will cost 6000 rs ( 100$ approx )
so i dont want to spend 100 bucks on that.. ! please help me out !
http://forum.xda-developers.com/showthread.php?t=1264021
Do this then u'll have 049 imei. Then go to dhiru's thread and flash the zip which deletes your efs and then flash the other one which brings your backup to efs folder then u'll be good to go
Sent from my GT-I9003 using xda app-developers app
Is it possible to upload a copy efs
nilebiker said:
Is it possible to upload a copy efs
Click to expand...
Click to collapse
Nobody would do it including me cuz EFS Folder has the most important info for your phone which is imei and copying is an illegal action. You may try to find efs.rar from google
Nityam said:
hello everyone..
a couple of days earlier i had flashed a CM 10.1 JB rom for i9003
and everything was working well... kudos to developers.
but then the phone turned itself off automatically and when i rebooted it it showed me no network..
further checking in about phone i saw there was no imei and no baseband and no service obviously
further after a bit research on xda i found out somehow my efs folder got corrupted...
i have a backup of that folder on my pc.. this backup was of a month ago when phone was working fine..
and i tried the possible ways to replace the efs folder with root explorer etc.. nothing turned up.
i really need help regarding restoring that efs folder..
thank you.
Nityam
Click to expand...
Click to collapse
Having the same problem. Tried a lot of things including the above mentioned but no luck. It seems like motherboard replacement is the only solution.

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