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Hello Guys,
I have an 8 month old i9100 that never had a custom rom or even root, but for more than a week los it's baseband information/IMEI and all the rest. The EFS folder was intact, no file missing and I tried all the known restore methods of restoring the IMEI but with no succes.
My question is: can it be a hardware problem? The service said the board need replacement. I have to mention that the phone had some serios drops in it's lifetime, but non of them when this problem occured.
I need some advices...
Thank you!
hardware prblm cause no root,custum roms,or changes,tweaks u made ..but phone had serious drops u say...so the board mus b damaged..do u hav efs bckup,if yes then root an restore using helcats tool..
rocky23 said:
hardware prblm cause no root,custum roms,or changes,tweaks u made ..but phone had serious drops u say...so the board mus b damaged..do u hav efs bckup,if yes then root an restore using helcats tool..
Click to expand...
Click to collapse
It's not my phone and I had to use the EFS folder I found. I tried with other nv_data.bin files but no result. is like phone refuses to read the file. No previous EFS backup as the user of the phone has no idea about custom FW and stuff like that... he uses what he buys.
go in efs and delete nv data.bin and nv data.bin md5 an there is a imei folder u can delete and replace with the backdup efs.....but sure u hav the good efs bckup or the phone is fu---ed up
rocky23 said:
go in efs and delete nv data.bin and nv data.bin md5 an there is a imei folder u can delete and replace with the backdup efs.....but sure u hav the good efs bckup or the phone is fu---ed up
Click to expand...
Click to collapse
already did everything I could... nothing seems to work. Also, afik if you delete the efs folder, the system creates another one with nv_data.bin inside, ofcourse not a good one. In reality, in this phone if I delete the efs, at reboot it gets recreated but with no nv_data.bin inside...weird
Wow M8! I just posted a question regarding a GS2 i bought from a friend with the exact same problem. If you find something let me know, If i do ill let you know then. But i guess its not because of the drops the phone has taken because the one i bought is intact. But exact same issue here....
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/
Hi, guys sorry for this maybe noob question. I've chged my firmware and all ( PDA, CSC etc) and after did that my IMEI chged to the test 1 for samsung. My phone is a galaxy s 2
I didnt backup my ESF, and now i cant use the gsm net of my sim, only wireless is working. I have my IMEI code ans S/N (dunno if needed), i'd like to know if there is a tool or sumthing to put in my old imei and let the phone work with my sim. ive tried to read this post, but im a noob and i didnt understand so much :
http://forum.xda-developers.com/showthread.php?t=1801997
can some1 pls help me?
Are you rooted with cwm. Nandroid bk up would help you out easy. I had to mount efs folder manual as phone said wasn't there and ext sd. Noob ish myself but got it bk on my own all part of the fun with android
Sent from my GT-I9100 using xda app-developers app
try sii repair from play store and ALWAYS back up EFS folder.
Sent from the little guy
Did you sort it?
Sent from my GT-I9100 using xda app-developers app
I also lost my IMEI no after a flashing a rom, as far as I was aware I had never made a backup of my efs folder, I attempted many different methods to resolve this, then I checked my external SD storage and saw an EFS_BACKUP folder with numerous compressed EFS files, I simply selected one of the early ones copied to my desktop and extracted contents and used them to replace my current efs folder on root of the phone, then reboot and you should have your original IMEI and phone working again, hope this helps goodluck
I flashed a JB ROM to my stock ICS ROM on my international S2 and my imei number keeps coming and going for away, it'll be there one second and if I restart it'll go away then come back randomly. I can't find any solutions anywhere, do you know what could be the problem? Anyone have a solution lol? i cant flash any ROMs, too scared to brick my phone
I'm not really into Samsung devices but maybe this thread will help you:
http://forum.xda-developers.com/showthread.php?t=1261948
well...that's what I call a dynamic IMEI.
Get sii_repair from play store.
Sent from the little guy
Azurael said:
I'm not really into Samsung devices but maybe this thread will help you:
http://forum.xda-developers.com/showthread.php?t=1261948
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Click to collapse
yeh that didnt helo, thanks anyway!
gastonw said:
well...that's what I call a dynamic IMEI.
Get sii_repair from play store.
Sent from the little guy
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Click to collapse
yeh i have that, i went back to me nandroid back up and my imei number was gone, so i used it to restore it, it took a couple of restarts to work but does that mean everytime i restart its gonna go away?
doesnt anyone have the same problem?
rohin26 said:
doesnt anyone have the same problem?
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Click to collapse
So you were restoring nandroid backup and you lost your phone's IMEI? No never happened to me. But you should have made a backup for it dude!
Edit: Okay got it. Install Root Explorer pro and check whether the efs folder is there or not. Set the same permissions from another I9100 and then reboot. Set the same permissions for each file in that folder and the folder itself. If you have made a backup in the form of .tar file then use HC ktool to restore your efs folder. It would automatically set the permissions required!
shahrozeumar said:
So you were restoring nandroid backup and you lost you IMEI afterwards? No never happened to me. But you should have made a backup for it dude!
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Click to collapse
no thats not what happened. I rooted my 4.0.4 using Odin and Siyah Kernel v5. Straight after rooting it, i downloaded GSII_repair from the app store and backed up my efs. Then i downloaded Titanium and backed up everything. Then i went to recovery mode and made a back up. I finally flashed the Resurrection ROM v3.1.3, i rebooted, everything was working fine, like imei was there and so was signal, i restarted my phone and my imei number went away, so i used the GSII_repair app to restore, it worked fine. I restarted my phone again, imei was gone yet again. So i decided to go back to my stock ROM back up, imei was gone, i restored, everything working fine now. Just not sure whats happening because i have rooted phones before and that has never happened to me, every time i restart, imei goes away, sometimes it comes back, sometimes it doesnt. What has happened? just reallly confused. i have a back up of my EFS though.
rohin26 said:
no thats not what happened. I rooted my 4.0.4 using Odin and Siyah Kernel v5. Straight after rooting it, i downloaded GSII_repair from the app store and backed up my efs. Then i downloaded Titanium and backed up everything. Then i went to recovery mode and made a back up. I finally flashed the Resurrection ROM v3.1.3, i rebooted, everything was working fine, like imei was there and so was signal, i restarted my phone and my imei number went away, so i used the GSII_repair app to restore, it worked fine. I restarted my phone again, imei was gone yet again. So i decided to go back to my stock ROM back up, imei was gone, i restored, everything working fine now. Just not sure whats happening because i have rooted phones before and that has never happened to me, every time i restart, imei goes away, sometimes it comes back, sometimes it doesnt. What has happened? just reallly confused. i have a back up of my EFS though.
Click to expand...
Click to collapse
Oh man that is really heart wrenching. Atleast you made a backup before messing with your phone. Okay now can you restore your efs? If yes then restore it and download HC ktool and make another backup for it. Then restart your phone and if you lose it again then restore it using HC ktool. You can try EFS Pro from your PC as well.
shahrozeumar said:
Oh man that is really heart wrenching. Atleast you made a backup before messing with your phone. Okay now can you restore your efs? If yes then restore it and download HC ktool and make another backup for it. Then restart your phone and if you lose it again then restore it using HC ktool. You can try EFS Pro from your PC as well.
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Click to collapse
okay i'll try that, sorry for the noob question but whats the difference between HC ktool and GSII_repair?
rohin26 said:
okay i'll try that, sorry for the noob question but whats the difference between HC ktool and GSII_repair?
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Click to collapse
They are two different tools I guess for efs backup and restore. HC ktool can also make backup for your kernel that your are currently on!
shahrozeumar said:
They are two different tools I guess for efs backup and restore. HC ktool can also make backup for your kernel that your are currently on!
Click to expand...
Click to collapse
just restarted my phone and checked, the imei number is showing. i didnt have to restore or anything. Is it safe to flash a ROM now? or any risk of brick? thanks for your help btw
I also lost my IMEI no after a flashing a rom, as far as I was aware I had never made a backup of my efs folder, I attempted many different methods to resolve this, then I checked my external SD storage and saw an EFS_BACKUP folder with numerous compressed EFS files, I simply selected one of the early ones copied to my desktop and extracted contents and used them to replace my current efs folder on root of the phone, then reboot and you should have your original IMEI and phone working again, hope this helps goodluck
strictly.mobile said:
I also lost my IMEI no after a flashing a rom, as far as I was aware I had never made a backup of my efs folder, I attempted many different methods to resolve this, then I checked my external SD storage and saw an EFS_BACKUP folder with numerous compressed EFS files, I simply selected one of the early ones copied to my desktop and extracted contents and used them to replace my current efs folder on root of the phone, then reboot and you should have your original IMEI and phone working again, hope this helps goodluck
Click to expand...
Click to collapse
yeh i know, but see thats not the problem. There is a million posts on that and i wouldnt have made another thread. The imei number will be there, and everything will be working, i'll restart my phone, it'll go away, i'll restore using GSII_repair, it'll come back sometimes, sometimes it wont, i just restart my phone untill it does but as soon as i restart it again, it'll say unknown. its a weird problem i know but im hoping someone has the answer to it
rohin26 said:
just restarted my phone and checked, the imei number is showing. i didnt have to restore or anything. Is it safe to flash a ROM now? or any risk of brick? thanks for your help btw
Click to expand...
Click to collapse
Yes you can go ahead with flashing stuff
rohin26 said:
yeh i know, but see thats not the problem. There is a million posts on that and i wouldnt have made another thread. The imei number will be there, and everything will be working, i'll restart my phone, it'll go away, i'll restore using GSII_repair, it'll come back sometimes, sometimes it wont, i just restart my phone untill it does but as soon as i restart it again, it'll say unknown. its a weird problem i know but im hoping someone has the answer to it
Click to expand...
Click to collapse
I get your point but with your IMEI coming and going, it would point too corrupt efs files on the root of your phone, given you have tried various methods already, I would take a copy of the suspected corrupt efs folder save it onto your pc, then go back to the root folder and delete it, replacing it with one from your EFS_backup folder on your external SD, no need to edit any of the internal files or use any other software, simply reboot
strictly.mobile said:
I get your point but with your IMEI coming and going, it would point too corrupt efs files on the root of your phone, given you have tried various methods already, I would take a copy of the suspected corrupt efs folder save it onto your pc, then go back to the root folder and delete it, replacing it with one from your EFS_backup folder on your external SD, no need to edit any of the internal files or use any other software, simply reboot
Click to expand...
Click to collapse
But do note down the permissions of the folder. You will need to set the same after pasting. Use Root Explorer for replacement purpose.
Sent from my GT-I9100 using xda premium
shahrozeumar said:
But do note down the permissions of the folder. You will need to set the same after pasting. Use Root Explorer for replacement purpose.
Sent from my GT-I9100 using xda premium
Click to expand...
Click to collapse
Good call, yes you will need root explorer and after pasting my permissions were already set but its best to make a note too be sure
Just backup your phone using galaxy toolbox and restore it
It can restore your IMEI
Hope it can help
Sent from my GT-S5360 using Xparent Skyblue Tapatalk 2
strictly.mobile said:
I get your point but with your IMEI coming and going, it would point too corrupt efs files on the root of your phone, given you have tried various methods already, I would take a copy of the suspected corrupt efs folder save it onto your pc, then go back to the root folder and delete it, replacing it with one from your EFS_backup folder on your external SD, no need to edit any of the internal files or use any other software, simply reboot
Click to expand...
Click to collapse
i have root access and everything but it wont let me delete the efs folder, keeps saying its only readable...
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.