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I have a Samsung Galaxy S II with lost IMEI & unknown baseband, ( the source of such a problem usually is the corruptness of the efs folder or missing ), My question is if the efs folder is missing would it be possible to use another backup from another backup of the efs folder from different S2 and edit in the details needed?
You can restore from your backed up EFS folder .
Or search XDA >>> EFS will find a number of posts and some fixes .
jje
Hi mate, I don't have a backup of the folder so can't restore
no, you can not use a efs from another phone as the imei is unique to each phone. you would end up bricking it.
You need to send it in for reflashing with specialized tools which will rebuilds your efs folder.
I have the same problem here.. any idea how to rebuild the efs folder?
DMLING said:
I have the same problem here.. any idea how to rebuild the efs folder?
Click to expand...
Click to collapse
SEARCH would be where i would start sorry but i am to lazy to do it for you .
Search >> EFS and IMEI
jje
without a backup its gonna be hard but check out this thread.May or may not help.
http://forum.xda-developers.com/showthread.php?t=1377105
Theres also a Dev called Odia that can restore lost EFS/IMEI folders.Costs i think but its worth it if you cant get it done yourself.Send him a PM.
Solution
I managed a solution to get your phone back, not perfect but works.
http://forum.xda-developers.com/showthread.php?t=1659366
Send me a PM for the EFS partion backup link.
Cant understand why people do not make a backup of the EFS. If they all took the time to read the stickies, they would know how important this is. Learn to walk before you start to run.
Sent from my GT-I9100 using Tapatalk 2
bored_stupid said:
Cant understand why people do not make a backup of the EFS. If they all took the time to read the stickies, they would know how important this is. Learn to walk before you start to run.
Sent from my GT-I9100 using Tapatalk 2
Click to expand...
Click to collapse
That's assuming they indeed read the stickies, of course.
Reading
Read Stickies is important, but sometimes there are procedures that don't work well, or as expected, so problems like this will appear and they must have a solution.
restore with a backup folder!
You may not of personally made a backup but a lot of roms and kernels do it for you automatically, so you may have one or more backups and not even know it.
Check if you have one in /data/.siyah if you have used said kernel.
Check your sdcard for any made by roms they usually make a folder named something like efs_backup
Last I looked in addition to the backup I made 5 minutes after buying the phone I have 20+ made from each rom upgrade.
Hi, I'm new to rooting etc. Is it too late to backup an efs folder after I rooted the phone but have done nothing else?
Cool
coolshades said:
Hi, I'm new to rooting etc. Is it too late to backup an efs folder after I rooted the phone but have done nothing else?
Cool
Click to expand...
Click to collapse
As long as your EMS folder is intact and IMEI is correct, its not too late. There are a number of apps and programs to backup your imei. Ktool is one of the best and simplest to use. Also try EFS pro.
Sent from my GT-I9100 using Xparent ICS Blue Tapatalk 2
bored_stupid said:
Cant understand why people do not make a backup of the EFS. If they all took the time to read the stickies, they would know how important this is. Learn to walk before you start to run.
Sent from my GT-I9100 using Tapatalk 2
Click to expand...
Click to collapse
Mate when people buy a phone, they don't expect that their phone's EFS will get meshed up. In my case I have Galaxy S and my wife has Galaxy S2. She has been using her phone for year and half, no major problem. Last week it suddenly lost the network connection. I tried different SIM but still no good and started searching to resolve the issue and I found how to access IMEI. It was empty. She didn't do anything, no new apps installed. Mobile service provider can't help..
samsung galaxy note 2 lte 4g N7105
Hi everybody i'm new here i have a problem with my phone,my phone is rooted, 1 month ago i had this problem that my phone would not boot stay on samsung logo,i rebooted in recovery and say EFS failed,so i connected my phone to odin flashed a couple of roms but nothing worked, i saw that there was an option EFS clear so i did that but did not work either so i reflashed a rom and this time it worked but when it booted it didn't even ask me to enter PIN for sim and i noticed in about device there was no baseband and no network signal please help guys i would appreciate thanks.
Hi there.
Hope someone can guide me on this. I've been reading all the posts related to unknown imei, lost efs folder, etc and tried several things to solve the problem, but anything worked out.
The phone got wet with some raindrops (very few raindrops). Warranty was lost because they told me the motherboard was damaged by water. At first the battery exhausted in no time and it didn't charged properly, but a couple of months later everything seems to be all right except that it tells there's no IMEI, and the SIM card isn't read by the phone. Later on I've brought it to another technical service where they've told me the motherboard wasn't damaged, but the SIM connector. They wanted me to pay a big amount of euros for such a little piece. I picked up the phone and decided to investigate by myself.
The actions done to the phone: I fisically opened it and applied a connector cleaning spray; then I upgraded it to ICS and finally rooted it. Then I tried lots of solutions that are posted in the forum, like the GSII_repair, busybox, backup of the efs folder via android-sdk, efs pro, etc.
The only thing about efs that I can read in the phone are two files: an efs.tar.gz and an efs.img.
The efs.tar.gz seems to contain everything needed to restore EFS folder: nv_data.bin, nv_data.bin.md5, etc.
I have no idea how to tidy all this mess up. I know that it's possible that the phone won't work again because of the rain, but I want to sold all the possibilities out before using it only as an ipod galaxy, and I resist thinking that if it was damaged by water the phone woulnd't work ok like it does.
What do I want? Trying to give it its IMEI number again and seeing whether it catches signal. Any idea on how to do that with the files efs.tar or efs.img.
Thank you so much.
Since you have some kind of an EFS backup, then you can use kTool, in the Google Play Store, to restore that backup.
kTool requires root.
Hi and thank you for the reply.
I've downloaded this hc-ktool and tried to restore EFS from backup via efs.tar.gz and via efs.img but anyone worked out. It still says "unknown IMEI". Any idea about why it didn't work?
lespou said:
Hi and thank you for the reply.
I've downloaded this hc-ktool and tried to restore EFS from backup via efs.tar.gz and via efs.img but anyone worked out. It still says "unknown IMEI". Any idea about why it didn't work?
Click to expand...
Click to collapse
Not really, I am still a noob in Android.
Do you have unknown baseband problem? If yes, then try flashing another modem via Odin.
przemcio510 said:
Do you have unknown baseband problem? If yes, then try flashing another modem via Odin.
Click to expand...
Click to collapse
In the baseband section it tells UNKNOWN, as well as the telephone number, IMEI, IMEISW and Bluetooth. D'you think changing the modem will change all the other unknown stuff? I'll try it anyway, thanks.
lespou said:
In the baseband section it tells UNKNOWN, as well as the telephone number, IMEI, IMEISW and Bluetooth. D'you think changing the modem will change all the other unknown stuff? I'll try it anyway, thanks.
Click to expand...
Click to collapse
Nothing to do with the modem. I changed it and everything's still the same.
Still rounding the problem... I installed root explorer and I saw there is an original efs folder in the root of the memory, not in the internal sdcard of the phone. So, what can the problem be? Is the phone really damaged? Or do someone think is only a software matter (is the efs folder corrupted?). Anyone can help?
http://forum.gsmhosting.com/vbb/f258/galaxy-s6-edge-imei-null-null-1960154/
Ok Guys. This is the story, i was playing with kTool, then i hit "Format EFS"
The phone restarted itself and then failed to boot...
After a long 4 hours of research, i discovered that i had a EFS.img on my SDCard
The i said to myself "WOW i'm lucky!"
restored this image to my efs partition, it mounts correctly now but i seems to have the "Fake IMEI 004999010640000" problem.
Anyone have a spare efs.img available to i try it on my phone? Of course... From a bricked or not working anymore phone
My Galaxy SIII is the International I9300
I would love to have a new efs on my phone, i don't have original one =/
Sorry if it's illegal or against rules of the forum or in wrong place ^^
I don't know if this helps.. But...
I have attached an image of how my phone looks like
no, that's illegal
Why would that be illegal?
Sent from my SGH-I747 using xda app-developers app
because it would change the IMEI
Then i just lost my phone?
I'm asking a backup of a dead phone... Is that illegal? :S
you just lost your phone, yes.
but you said you had a backup, you might be doing something wrong. just don't ask for others people backups anymore
Take it too service centre, the imei is in the back of the phone, they should be able to reinstate if the phone isn't blocked
Hi guys I'm having a strange problem with my sister's galaxy s2. For the second time she lost her IMEI without any reason (no flash ecc just turned off the phone and no IMEI when turned on). The last time I've been able to restore it and I made all the backups using efs pro, But this time when I try to restore it the procedure goes well but the imei is still missing. I tried to restore it manually and I discovered that for some reason the EFS folder is blocked on READ ONLY and I can't switch it in R/W. This problem is preventing me to restore the IMEI and I can't find any similar case on google. Can someone helps me with it?
Thank you a lot
EDIT: Android version 2.3.6 Gigerbread.XILA3 with chainfire kernel
artos01 said:
Hi guys I'm having a strange problem with my sister's galaxy s2. For the second time she lost her IMEI without any reason (no flash ecc just turned off the phone and no IMEI when turned on). The last time I've been able to restore it and I made all the backups using efs pro, But this time when I try to restore it the procedure goes well but the imei is still missing. I tried to restore it manually and I discovered that for some reason the EFS folder is blocked on READ ONLY and I can't switch it in R/W. This problem is preventing me to restore the IMEI and I can't find any similar case on google. Can someone helps me with it?
Thank you a lot
EDIT: Android version 2.3.6 Gigerbread.XILA3 with chainfire kernel
Click to expand...
Click to collapse
Have you root your phone?
akumasihdisini said:
Have you root your phone?
Click to expand...
Click to collapse
Sure the phone is rooted. My situation is very strage. If I enter the EFS folder with root explorer and I click on "Convert to R/W" the folder remains R/O. Also if I try to cancel any file (or rename or move) in EFS folder nothing happes (that probabbly is what prevents EFS PRO from working). Is there any way to force that folder to be read/write or to cancel it? Maybe using adb shell from the pc?
try tool, play with it for a while.
GS2 repair app is your other choice.
Sent from...this is not even my S2
gastonw said:
try tool, play with it for a while.
GS2 repair app is your other choice.
Sent from...this is not even my S2
Click to expand...
Click to collapse
Thx for the info. Gs2 repari looks like the fix that i need but unfortunatelly it doesn't work. Can you specify what app is the Tool one that you suggested me?
hc ktool I think it's called.
Sent from the little guy
gastonw said:
hc ktool I think it's called.
Sent from the little guy
Click to expand...
Click to collapse
Thank you a lot gastonw that worked. If someone is interested I had to cancel the efs folder with hc ktool, reboot, restore and reebot again to have i work. Now I think that I will upgrade the phone to the last firmware available hoping to avoid other imei loss
Back up & save to a safe location that EFS folder like there's no tomorrow!
Sent from the little guy
gastonw said:
Back up & save to a safe location that EFS folder like there's no tomorrow!
Sent from the little guy
Click to expand...
Click to collapse
Eheh of course I already done it about one year ago! The problem was my blocked EFS folder but now I know how to fix it if it happens again :good:
People seem to have problems whenever they use EFS Pro. People should use kTool; seems to almost always restore without any problems.
This is the new ROM Manager?
Sent from the little guy
Hi guys
I bought samsung galaxy s3 i9300 sprint and it was working with me pretty good until i installed a new customed rom , and rom was working fine and one day i have lost my mind and wanted to increase the ram so i downloaded an app after i rooted my phone and instead i format the sd card parition i have formatted the efs and my phone doesnt boot , was freezing on the startup so i Google and found out to download efs repair and after it worked fine but i cant make any calls it gives me a fake IMEI , i installed new official rom 4.1 and 4.3 and changed too many modems all kinds of modems i think but nothing worked and my IMEI still not restored to the orginial one that is written on the back of my phone .
i noticed later that whatever i install from modems it is like nothing because efs folder in my phone missing the the file that my IMEI stored in so i got later that the file that store my original IMEI is missing from ESF folder
I also tried everystep about busybox and emulator dos and nothing worked with me because i think i need to rewrite again my IMEI .
Is there any means to do that or anyone upload me EFS folder of same phone or i will just throw my phone now i dont know what to do i havent enjoy my phone more than one month
Wrong phone, wrong forum. This is for the i9300 only.
If you've wiped your efs then nothing you can do, take it to a repair centre and pay them to fix it.
Questions go in the q&a section, not general.
I cannot help here, but i suggest having a more specific title for the topic.
thanks!
kamel7896 said:
Hi guys
I bought samsung galaxy s3 i9300 sprint and it was working with me pretty good until i installed a new customed rom , and rom was working fine and one day i have lost my mind and wanted to increase the ram so i downloaded an app after i rooted my phone and instead i format the sd card parition i have formatted the efs and my phone doesnt boot , was freezing on the startup so i Google and found out to download efs repair and after it worked fine but i cant make any calls it gives me a fake IMEI , i installed new official rom 4.1 and 4.3 and changed too many modems all kinds of modems i think but nothing worked and my IMEI still not restored to the orginial one that is written on the back of my phone .
i noticed later that whatever i install from modems it is like nothing because efs folder in my phone missing the the file that my IMEI stored in so i got later that the file that store my original IMEI is missing from ESF folder
I also tried everystep about busybox and emulator dos and nothing worked with me because i think i need to rewrite again my IMEI .
Is there any means to do that or anyone upload me EFS folder of same phone or i will just throw my phone now i dont know what to do i havent enjoy my phone more than one month
Click to expand...
Click to collapse
Theres no way to fix it unless u have a back up of ur efs. And yeah. this forum is for the international version not the sprint version. Go to the repair center and ask them to fix it for u. You most probably formatted ur internal memory since its called the sdcard. ur ext sd card is called the sdcard1
JellyYogurt said:
Theres no way to fix it unless u have a back up of ur efs. And yeah. this forum is for the international version not the sprint version. Go to the repair center and ask them to fix it for u. You most probably formatted ur internal memory since its called the sdcard. ur ext sd card is called the sdcard1
Click to expand...
Click to collapse
thank you for the answer , i sent it to the repairing center,i appreciate ur help
Local shop will fix this a lot cheaper than Sammy service center. Efs is not located on int SD so wiping int SD won't wipe you're efs. Any back ups you made to int SD would be wiped.
andrewwright said:
Local shop will fix this a lot cheaper than Sammy service center. Efs is not located on int SD so wiping int SD won't wipe you're efs. Any back ups you made to int SD would be wiped.
Click to expand...
Click to collapse
He formatted the internal memory, not factory reset.
Sent from my GT-I9300 using XDA Free mobile app
Yes and formatting won't delete the efs folder. Its not located in int SD. Trust me bk up your int and wipe it. Efs is not affected by formatting int
andrewwright said:
Yes and formatting won't delete the efs folder. Its not located in int SD. Trust me bk up your int and wipe it. Efs is not affected by formatting int
Click to expand...
Click to collapse
thank you for you answering but i wanna say i know that efs located in the internal memory..after i installed the rom it was working fine until i used swap app and i formatted internal memory then my phone restart while im working on it and the phone froze on the boot so i googled i found someone putting file called efs repair i flashed it through odin and my phone back again normal but with fake serial so do u think the orginial efs have been replaced when i flashed this efs repair file because it happened after i flashed this file nd get my phone boot working but serial fake.
what can i do ?
kamel7896 said:
thank you for you answering but i wanna say i know that efs located in the internal memory..after i installed the rom it was working fine until i used swap app and i formatted internal memory then my phone restart while im working on it and the phone froze on the boot so i googled i found someone putting file called efs repair i flashed it through odin and my phone back again normal but with fake serial so do u think the orginial efs have been replaced when i flashed this efs repair file because it happened after i flashed this file nd get my phone boot working but serial fake.
what can i do ?
Click to expand...
Click to collapse
Ur efs is corrupted. Do u have a back up of ur efs?
Sent from my GT-I9300 using XDA Free mobile app
Efs I learned a lot about on the s2. S2 and s3 and all Sammy phone work the efs the same. What's nv_data.bin file size. The PIC is to show that efs folder isn't in int SD. Any efs file that's in int SD is a copy and same as with ext SD.
Also try this out...
http://forum.xda-developers.com/galaxy-s2/help/solved-stuck-flight-mode-efs-issue-t1261948 may help may not but its worth a go on the s3. There also is a man on xda who can fix efs...all he needs is control of you're PC to make it happen but he charges for this. Interested? Not been interested in efs folder since s2 but now I'm getting interested again.
andrewwright said:
Efs I learned a lot about on the s2. S2 and s3 and all Sammy phone work the efs the same. What's nv_data.bin file size. The PIC is to show that efs folder isn't in int SD. Any efs file that's in int SD is a copy and same as with ext SD.
Also try this out...
http://forum.xda-developers.com/galaxy-s2/help/solved-stuck-flight-mode-efs-issue-t1261948 may help may not but its worth a go on the s3. There also is a man on xda who can fix efs...all he needs is control of you're PC to make it happen but he charges for this. Interested? Not been interested in efs folder since s2 but now I'm getting interested again.
Click to expand...
Click to collapse
Thank you too much i appreciate your help really , i wanna really say when i take my phone to
repair shop all they say they dont have zx3 box and the tools to maintain it otherwise i would
have fixed it but really here maintaining centers too bad they all just told me replace the
motherboard and buy new one i think this is stupid just i buy a phone and after a month i
throw it because of efs corrupt (sorry for the headache). i checked the link you showd me and
when i access the efs with the root folder i found all files that they guy mentioned in efs
folder except this file name (.nv_data.bak) i couldnt find it inside my efs folder .do you
think the problem is there because i have not this file
another request please u said there is a man on xda an fix it , would please tell me how to
contact him and how be in touch with so he can fix it, i dnt mind he control my pc the most
important i wanna my phone works again and i agree about the charges .. there is something else before i have this problem with efs folder i made a copy with clockworldmod for whole system on my memory card but when i restore the version the IMEi is the same doesnt change , i have an idea i dont know it is rght or wrong i wanted to extract that clockwordmod backup and fine efs folder and use it , i dontknow that clockwordmod where it keeps efs folder or even it does back up to efs when i used clockwordmod
Thank you too much for
your support
http://forum.xda-developers.com/member.php?u=1465627
This is odia. Pm him you're problem and details and wait! Do not bug him! This man has crazy skills with android. And Sammy said replace mb! Thats just lazy of them to say that. for probably a quicker fix go to a different local shop.
andrewwright said:
http://forum.xda-developers.com/member.php?u=1465627
This is odia. Pm him you're problem and details and wait! Do not bug him! This man has crazy skills with android. And Sammy said replace mb! Thats just lazy of them to say that. for probably a quicker fix go to a different local shop.
Click to expand...
Click to collapse
i tried to send message to odia , it says when i send message he isnt accepting private pm. do you know anyway to get in touch with him or somebody else fix it to me through controlling my pc
kamel7896 said:
i tried to send message to odia , it says when i send message he isnt accepting private pm. do you know anyway to get in touch with him or somebody else fix it to me through controlling my pc
Click to expand...
Click to collapse
same here
I don't know anyone else that has done this over the net.