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hi ,
i got nexus s (3g)
and i try to install a new rom, Rom fell in the middle of installation, and since my phone is not dead (no reception) after I went online I realized that what happened is a folder called EFS was deleted or changed, because it is not working, I did a backup the folder ... What can you do?
Thanks
The device is a Root
http://forum.xda-developers.com/showthread.php?t=1138873&highlight=efs
yea i saw that , but i don`t have a backup file... i need to recreate it...
orbens said:
yea i saw that , but i don`t have a backup file... i need to recreate it...
Click to expand...
Click to collapse
If your EFS folder is damaged/deleted and you have no backup, you are out of luck. I don't know of any official way to restore it.
Search in the Sense port thread where apparently EFS folders were damage, maybe some hints in there.
I read on Google some ppl got lucky restoring their IMEI etc by deleting every remaining item in the EFS folder and flashing a new ROM using a fake IMEI.
DISCLAIMER: I have absolutely NO experience with it and strongly advise to do research before taking further actions. This is a too serious issue to try&error.
any one can help me? plz..
orbens said:
any one can help me? plz..
Click to expand...
Click to collapse
In case you didn't get what I said, there is NO fix for that. You're phone is basically useless now.
What is it? Because I want to download the mokeeOS, but the installation is confusing me, so I wanna know if the efs matters
Sent from my SGH-T959V using XDA
1. Yes efs matters a lot
2. I don't know a whole lot but it holds the network info, imei number, and alot of other really important things
Sent from my SGH-T959V using xda premium
Although there is a way to make sure you have a backup, flash this file in cwm
sourceforge.net/projects/teamacid/files/fb/cwm/cm7-efs-backup.zip/download
And there will be two files in the root of your sd card
Efs-backup.tar and efs-backup.tar.md5 ( I suggest save it to your computer, it saved my ass )
And you can restore this backup at anytime by flashing this
sourceforge.net/projects/teamacid/files/fb/cwm/cm7-efs-restore.zip/download
Good luck
Sent from my SGH-T959V using xda premium
Efs is the files system that holds the unique identifiers for your device. Without it, your phone is basically useless. You won't be able to connect to any network properly do things like phone calls, internet, texting, are all degraded, if they even work at all... Make sure you know what you are doing before messing with it. Fb created a vet good guide on the wiki. Follow it to a T!
Sent from my SGH-T959V using XDA
I would suggest using a root browser to copy the EFS folder to somewhere safe on your PC and copy a 2nd back-up to your SD card. I lost IMEI going from CM7 to moKeeOS but was able to easliy restore it with a back-up and a root browser.
The flashable EFS back-up/restore from FB should still be used, but with EFS/IMEI I don't think you can be too careful and backing it up manually as previously stated is a good idea.
Yeah, I keep multiple copies of it on my PC. The reason being is that I copy it whenever I do a backup before a flash. So I have a directory with the date with 3 folders: efs, nandroid, and sdcard. I used adb to copy them:
Code:
cd efs
adb pull /efs/
Probably overkill, but better to be safe than sorry, eh?
Ok, but once you lose IMEI and don't have a backup (I received this phone for repair), then what can I do?
serialteg said:
Ok, but once you lose IMEI and don't have a backup (I received this phone for repair), then what can I do?
Click to expand...
Click to collapse
It's pretty much screwed without the OEM Samsung/Tmo software. You would have to send it to Samsung for repair, or you might get lucky and get an engineer to hook you up, but that is unlikely...
thomas.raines said:
It's pretty much screwed without the OEM Samsung/Tmo software. You would have to send it to Samsung for repair, or you might get lucky and get an engineer to hook you up, but that is unlikely...
Click to expand...
Click to collapse
thanks for the answer. that OEM software isn't available in the forums or anywhere else for us? because I swear I flashed something OEM'ish without root with heimdall.
also, the imei is on the battery part of the phone, can't i fix it?
i read somewhere that you could use a phone just fine without imei on the about phone.
you can use the phone without imei, but it doesn't function as well as it would with it. Also, i was using titanium backup and it said my device's id was changed, and it showed my actual imei. If i were to restore it, would that fix the imei?
EFS help on the SGH-T959V
Basically, I've had a hell of a time with some EFS drama this weekend, made a total noob mistake, but in a stroke of luck I was able to "recover" so to speak my EFS even after it was supposedly "wiped."
After some thorough research and READING and bit of thought, I realized that the PIT mapping layouts between BML and MTD are indeed different, and that in theory if one remaps to BML (in layman's terms a stock partition map) then the EFS data originally on the phone gets correctly remapped (at least in my case it did).
To reiterate:
1. I did a nandroid backup. Basic ****. I hope to god you at least did this step too.
2. I used the cm7-efs-backup.zip script to backup my EFS. This was my first mistake. In my case, I don't know why I'm still researching, this script failed to make a backup .tar on my sdcard or anywhere else for that matter. It didn't throw any error messages either on the screen in the process. Not trying to attack the authors of that script, I'm just saying it didn't work for me this time.
3. I pushed the TWRP boot.img with Heimdall
4. I used the cm7-efs-restore.zip script which also "succeeded" but did nothing to restore any sort of EFS obviously because there was no backup to begin with.
5. I flashed R11 unofficial cm7 and booted up. Everything was fine but the IMEI was corrupted and I confirmed that the new MTD EFS partition was empty. On T-Mobile I could place no calls and only got sporadic and intermittent data access.
It was at this point I was sure I had ruined my phone.
After some more careful reading I realized that the original EFS was still present on the firmware, however the new MTD layout I flashed (wisely) stores its EFS partition in a different physical location. In theory, I thought if I reverted to BML and a stock ROM then I would recover the original EFS. In my case, this was successful.
1. I accessed the most recent "boot.img" file from my most recent nandroid and pushed that back to the device with Heimdall
2. At this point you have to flip your USB drivers back to USB Composite Device.
3. I then used a Heimdall one click to return to a rooted stock KJ6 "Gremlin Remover"
4. Upon restart, everything was fine (sigh of relief)
At this point, I'm still trying to determine why my EFS cannot be backed up with a few automatic tools. I made a backup of the file structure, but even lyriquidperfection's EFS Pro 1.4.7 can't make a backup of the EFS. It can access the ADB Server, but the backup 'fails'.
I'll check back in after I figure out why.
Hopefully this info will help anyone else who has switched to MTD and has a missing EFS.
nick.tansy said:
At this point, I'm still trying to determine why my EFS cannot be backed up with a few automatic tools. I made a backup of the file structure, but even lyriquidperfection's EFS Pro 1.4.7 can't make a backup of the EFS. It can access the ADB Server, but the backup 'fails'.
I'll check back in after I figure out why.
Hopefully this info will help anyone else who has switched to MTD and has a missing EFS.
Click to expand...
Click to collapse
I had similar issues yesterday. If your trying to install the twrp and then downgrade to the version with wifi dont flash the boot.img with heimdall. Follow the instructions for installing via cwm.
Just install the zip that has twrp in it. But follow the directions for normal cwm installation.
Also when trying to make a backup of your efs, make sure system is mounted. I initially did not have any problem but I was on antonx's kernel and when you flash with that recovery it would mount properly. What is happening is system isnt getting mounted. So its making a null backup.
The most important thing to do is when you are trying to make a backup of your efs is mount system!
Hi have you tried the updated EFS Pro v1.7.13? It can now automatically detect the mount point of the '/efs' folder for back up and restore. Also many many bug fixes and new code to communicate with adb.exe alot more quickly and efficiently.
Head over to the forum and check it out.
I already solved this problem, but this would seem useful other people with the same problem. But what forums are you exactly referring to?
Sent from my SGH-T959V using XDA
mierkat09 said:
I already solved this problem, but this would seem useful other people with the same problem. But what forums are you exactly referring to?
Sent from my SGH-T959V using XDA
Click to expand...
Click to collapse
This one.
http://forum.xda-developers.com/showthread.php?p=18524176
please help my phone has no imei after flash a custom rom framework * # 06 # get this IMEI null / null http://imageshack.us/photo/my-images/546/sc20120828223834.png/
http://imageshack.us/photo/my-images/266/sc20120828223733.png/
Try flashing a different modem
Sent from my SAMSUNG-SGH-I727 using xda app-developers app
dutchthomas said:
Try flashing a different modem
Sent from my SAMSUNG-SGH-I727 using xda app-developers app
Click to expand...
Click to collapse
I tried ics and ginger stock and nothing
See if this helps you http://forum.xda-developers.com/showthread.php?t=1611796
kishke said:
See if this helps you http://forum.xda-developers.com/showthread.php?t=1611796
Click to expand...
Click to collapse
I try this method and repair the lock screen that did not work but still not working imei imei null / null thank
That is REALLY BAD.... Not sure what to tell you... Heard someone else did that and they were screwed....
Sent from my SAMSUNG-SGH-I727 using xda app-developers app
If it's only IMEI number that's missing use the search, there was a thread a while back with someone having the same issue, he got told to edit some file and enter his IMEI from the phone's sticker.
aiyoros02 said:
please help my phone has no imei after flash a custom rom framework * # 06 # get this IMEI null / null
Click to expand...
Click to collapse
Exactly what rom framework did you flash?
cschmitt said:
Exactly what rom framework did you flash?
Click to expand...
Click to collapse
Just install the Alpha 3 rom CyanogenMod 10 Chopsticks eat as usual, but I think the problem arose when trying to unlock the sim with an online payment program, since then insert * # 06 # and IMEI it says null / null
aiyoros02 said:
Just install the Alpha 3 rom CyanogenMod 10 Chopsticks eat as usual, but I think the problem arose when trying to unlock the sim with an online payment program, since then insert * # 06 # and IMEI it says null / null
Click to expand...
Click to collapse
Ok, first off did you follow the other post regarding repairing /efs/imei/keystr file if necessary?
Otherwise, sounds like the hidden EFS partitions are corrupt.
Do you have a recent nandroid backup (prior to the unlock attempt)? If so, check the data.ext4.tar for an efs1.bin, efs2.bin, and efs3.bin located in /data/qcks directory.
If you have the efs?.bin files I can walk you through flashing them back into the EFS partitions on the phone. That'll restore the IMEI.
cschmitt said:
Ok, first off did you follow the other post regarding repairing /efs/imei/keystr file if necessary?
Otherwise, sounds like the hidden EFS partitions are corrupt.
Do you have a recent nandroid backup (prior to the unlock attempt)? If so, check the data.ext4.tar for an efs1.bin, efs2.bin, and efs3.bin located in /data/qcks directory.
If you have the efs?.bin files I can walk you through flashing them back into the EFS partitions on the phone. That'll restore the IMEI.
Click to expand...
Click to collapse
if you use the method / efs / imei / keystr, and retrieve the Parameter Display Lock was corrupt, but does not appear imei,
I have nothing, everything was erased trying to repair the error, I did all the wipe and factory reset. maybe find another method
aiyoros02 said:
if you use the method / efs / imei / keystr, and retrieve the Parameter Display Lock was corrupt, but does not appear imei,
I have nothing, everything was erased trying to repair the error, I did all the wipe and factory reset. maybe find another method
Click to expand...
Click to collapse
Sorry to say then, without a nandriod backup you're SOL.
cschmitt said:
Sorry to say then, without a nandriod backup you're SOL.
Click to expand...
Click to collapse
I'm facing same issue with my Skyrocket. Did anyone found any solution for this null/null IMEI?
talk2sharn said:
I'm facing same issue with my Skyrocket. Did anyone found any solution for this null/null IMEI?
Click to expand...
Click to collapse
Check out these threads, there are solutions but you got to pay up at least €10
http://forum.xda-developers.com/showthread.php?t=2288390
http://forum.xda-developers.com/showthread.php?t=2287136
how to use efs1.bin efs2.bin and efs3 bin to restore imei
cschmitt said:
Ok, first off did you follow the other post regarding repairing /efs/imei/keystr file if necessary?
Otherwise, sounds like the hidden EFS partitions are corrupt.
Do you have a recent nandroid backup (prior to the unlock attempt)? If so, check the data.ext4.tar for an efs1.bin, efs2.bin, and efs3.bin located in /data/qcks directory.
If you have the efs?.bin files I can walk you through flashing them back into the EFS partitions on the phone. That'll restore the IMEI.
Click to expand...
Click to collapse
Hi,
I found myself in exact same situation (0 IMEI, corruct EFS, no nv_data.bin files on i727). I however have a nandroid backup and I found and extracted the efs1-3.bin files from /data directory.
Could you please let me know how to flash them into the EFS partition to restore the IMEI.
you are my last hope !!!!!
bmyury said:
Hi,
I found myself in exact same situation (0 IMEI, corruct EFS, no nv_data.bin files on i727). I however have a nandroid backup and I found and extracted the efs1-3.bin files from /data directory.
Could you please let me know how to flash them into the EFS partition to restore the IMEI.
you are my last hope !!!!!
Click to expand...
Click to collapse
howto backup/restore efs
dont know if it will fix the imei though
LESSON LEARNT (for everyone): Please make sure to do a complete EFS backup before you do anything or you will end up like me!!!
So yeah I flashed Deodex_LF2_Cwm.zip yesterday, trying to deodex my DDFL2.
And following that I experienced total loss of mobile signal, baseband, IMEI, IMEI SV, and phone (*#1234#).
And I haven't been seeing this kinda thing to come, I did not back up EFS. (Yeah brilliant me)
So I tried a few of these:
[GUIDE] Recover your IMEI in 9 steps
Repair IMEI using EFS Pro
Reflashing from latona.pit then XXKPE; for a few times
Flashing stock ROM for Malaysia region (Froyo and GB)
Flashing various Modem.tar (DDLE1, DXKP7, etc) via Odin3 at different ROM levels (XXKPE, DDLF2, even CM10A4)
Restoring Nandroid backup from other SL user (Thanks Rich'Dawg')
But nothing worked so far yet.
Now that I checked the /efs folder is empty and there is only a folder named lost+found.
Some websites said about fixing IMEI for small fees but in cases of blank IMEI (*#06#), chances are only 30%.
And my last resort would be getting it replaced in Samsung service centre or any repair shop, which I suspect that the motherboard would be more expensive than some simple new Android phones.
Leaving this forum for the moment as to collect more money to get a new phone . . . :crying:
Lastly, thanks for all the input. Greatly appreciated.
Do you able to call anyone. ? if yes then no need to change anything. if no then you should search for imei solution on xda. there is some tutorial for fake imei.
nicsptl said:
Do you able to call anyone. ? if yes then no need to change anything. if no then you should search for imei solution on xda. there is some tutorial for fake imei.
Click to expand...
Click to collapse
Nope. I totally lost signal and mobile network.
cheeyeen said:
Nope. I totally lost signal and mobile network.
Click to expand...
Click to collapse
do you flash b4 CM10? if yes, search your sd card and External sd card for the installation backup of efs folder
chongns said:
do you flash b4 CM10? if yes, search your sd card and External sd card for the installation backup of efs folder
Click to expand...
Click to collapse
Yes I did but nope I couldn't find. sucks.
It is in a folder name backup
Sent from my GT-I9003 using Tapatalk 2
chongns said:
It is in a folder name backup
Sent from my GT-I9003 using Tapatalk 2
Click to expand...
Click to collapse
Sad enough this folder does not exist in my phone....
Have you had any idea if Samsung would fix this in Malaysia..? Or how much would that be.
I spent like 10 hours trying to look for a solution but >"<
cheeyeen said:
Sad enough this folder does not exist in my phone....
Have you had any idea if Samsung would fix this in Malaysia..? Or how much would that be.
I spent like 10 hours trying to look for a solution but >"<
Click to expand...
Click to collapse
no idea of how much it should be.
but a idea to help you,
1st idea:
go in recovery and fix permission.
2nd idea:
you said you flash Deodex LF2 in CWM, it should not touch efs folder. so, very high change of your nv_data.bin file backup still good.
OK. use any file browser look in the efs folder, see if the below file still exiting, (they are hidden file)
check on the file date. is the date older than the date you flash the zip, if yes, this is the one original from your phone.
the file name start with a dot
.nv_data.bak - ( this is your imei backup file) copy and rename the .nv_data.bak to nv_data.bin and set permission and change owner.
.nv_data.bak.md5 - (delete this file first)
chongns said:
no idea of how much it should be.
but a idea to help you,
1st idea:
go in recovery and fix permission.
2nd idea:
you said you flash Deodex LF2 in CWM, it should not touch efs folder. so, very high change of your nv_data.bin file backup still good.
OK. use any file browser look in the efs folder, see if the below file still exiting, (they are hidden file)
check on the file date. is the date older than the date you flash the zip, if yes, this is the one original from your phone.
the file name start with a dot
.nv_data.bak - ( this is your imei backup file) copy and rename the .nv_data.bak to nv_data.bin and set permission and change owner.
.nv_data.bak.md5 - (delete this file first)
Click to expand...
Click to collapse
Fixed permission.
I found one .nv_data.bak dated year 1994 , which I think came in when I was trying to flash some efs fixes i found in XDA.
Without much hope I tried what you said, but still nothing happened. IMEI blank, baseband unknown.
Is it possible to have the mobile phone repair shop with RIFF or Jtag or some box thingy to have this done?
i think you must change the motherboard
cheeyeen said:
[Request] Is it possible if anyone could send me a Nandroid backup of a working rom, so I could restore it via CWM? (It is a way I found in the XDA forum).
...
So yeah I flashed Deodex_LF2_Cwm.zip yesterday, trying to deodex my DDFL2.
And following that I experienced total loss of mobile signal, baseband, IMEI, IMEI SV, and phone (*#1234#).
And I haven't been seeing this kinda thing to come, I did not back up EFS. (Yeah brilliant me)
So I tried a few of these:
[GUIDE] Recover your IMEI in 9 steps
EFS Pro
Reflashing from latona.pit then XXKPE; for a few times
Flashing various Modem.tar (DDLE1, DXKP7, etc) via Odin3 at different ROM levels (XXKPE, DDLF2, even CM10A4)
But nothing worked so far yet.
Now that I checked the /efs folder is empty and there is only a folder named lost+found.
And my last resort would be getting it replaced in Samsung service centre??
I don't know how much would it cost in Malaysia to change the motherboard but I'm sure it will be stupidly high...
Or.. does that mean my time in i9003 forum is up..? :crying:
Please help me because I don't want to buy a new phone yet! :crying:
Click to expand...
Click to collapse
Mate, do you like JellyBam V.1.3.0? Because that's the only Nandroid backup i have in my phone. I was thinking to upload it to my Box account for Emergency Backup if i don't have my computer. If you like, i can upload it for you, but the size of the backup would be nuts, it's 850 MB. It's up to you.
Rich'Dawg' said:
Mate, do you like JellyBam V.1.3.0? Because that's the only Nandroid backup i have in my phone. I was thinking to upload it to my Box account for Emergency Backup if i don't have my computer. If you like, i can upload it for you, but the size of the backup would be nuts, it's 850 MB. It's up to you.
Click to expand...
Click to collapse
I would try anything as long as it works! Please do!
Best of Luck
a friend of mine ran through the same same problem and i think he did some sort of repair from a shop but later we came to know that the backup can do the task not sure whether that work or not but u can give it a try,, BEST of Luck with that..... Hopit Fix the Issue
Good luck sir! As far as I know, if you would choose to replace the motherboard from repair center, it would cost you more or less 80% of the original price of the phone. So it would seem that you have to buy a new one. I hope that a nandroid backup (as stated above) would solve the problem. God bless you! Think positive
i have the same problem and tried those solution the TS tested and still no luck, i wan't to try those nandroid backup but can't find any.
Rich'Dawg' said:
Mate, do you like JellyBam V.1.3.0? Because that's the only Nandroid backup i have in my phone. I was thinking to upload it to my Box account for Emergency Backup if i don't have my computer. If you like, i can upload it for you, but the size of the backup would be nuts, it's 850 MB. It's up to you.
Click to expand...
Click to collapse
Bro,pls upload... let me try it... if imei is changed to 043xxxxxxx then we can fix with z3x box
Xperia.IN said:
Bro,pls upload... let me try it... if imei is changed to 043xxxxxxx then we can fix with z3x box
Click to expand...
Click to collapse
can you share it with me if you have nandroid backup, i will try to fix it with z3x and asansam
never thought deodexing gonna brick the phone.. ive deodex once without any problem.. without any doing backup before that.. lucky me.. huhu
try other people's nandroid and see.. i dont think it needs a specific emei or what so ever.. as long as its a backup.. goodluck..
the problem is we can't find someone to lend us their nandroid backup.
I did it!
Bro, try use Efs Pro, http://forum.xda-developers.com/showthread.php?t=1308546
Try the new version, you can choise Qualcom version, write you IMEI number, go back to initial and do NV Restore.
My SG Fit go back to life (after maybe 4 months with 0000000000000 Imei). :good:
I´m very happy
Hope it work for you! Good luck!
I received my Nexus 5 a week ago, and after setting it all up how I like it, I noticed dead pixels. I ordered a replacement which has arrived today. and I'm wondering if I can make a TWRP backup on my old phone, and then restore it on the new one? Both have the same SKU number - LG-D821.AAU3WH.
iPWNtehNOOB said:
I received my Nexus 5 a week ago, and after setting it all up how I like it, I noticed dead pixels. I ordered a replacement which has arrived today. and I'm wondering if I can make a TWRP backup on my old phone, and then restore it on the new one? Both have the same SKU number - LG-D821.AAU3WH.
Click to expand...
Click to collapse
Yes but DO NOT BACKUP OR RESTORE EFS!!!!!!
Absolutely. The trick to this is to make a quick backup on the new phone (backup cache, or something small) so that it creates a folder with your new device's serial number. TWRP looks in /sdcard/TWRP/BACKUPS/<DEVICE's SERIAL NUMBER>/ to find backups.
So, once TWRP has created a folder for the new device's serial number, you can transfer over the backup files from the previous device. You'll need to ADB PULL the directory to a computer from the old device, then PUSH them back to the new one.
It works like a charm. My wife dropped her first N5 during a walk in a park and shattered the screen -- when her new one came, we made it a perfect "clone" of the first this way.
Good luck!
rootSU said:
Yes but DO NOT BACKUP OR RESTORE EFS!!!!!!
Click to expand...
Click to collapse
bcgaynor82 said:
Absolutely. The trick to this is to make a quick backup on the new phone (backup cache, or something small) so that it creates a folder with your new device's serial number. TWRP looks in /sdcard/TWRP/BACKUPS/<DEVICE's SERIAL NUMBER>/ to find backups.
So, once TWRP has created a folder for the new device's serial number, you can transfer over the backup files from the previous device. You'll need to ADB PULL the directory to a computer from the old device, then PUSH them back to the new one.
It works like a charm. My wife dropped her first N5 during a walk in a park and shattered the screen -- when her new one came, we made it a perfect "clone" of the first this way.
Good luck!
Click to expand...
Click to collapse
Excellent, thanks gents! So backup and restore EVERYTHING but EFS, or just Data?
iPWNtehNOOB said:
Excellent, thanks gents! So backup and restore EVERYTHING but EFS, or just Data?
Click to expand...
Click to collapse
You'll need to restore /system and /data if you want it exactly the same. I do not know what modifications / differences between the /system on your old and new phone are, so if in doubt, do both.
You should also do a backup of the EFS partition of the new phone since it's fresh, and keep it in a handy place. You never know when you might need it.
Further information from Dees_troy.
isn't EFS something samsung specific? can't find it on my N4
prulleman said:
isn't EFS something samsung specific? can't find it on my N4
Click to expand...
Click to collapse
Nope. Here is a thread for N5.
Primokorn said:
Nope. Here is a thread for N5.
Click to expand...
Click to collapse
ok thanks didn't know that. good info awaiting my N5
prulleman said:
ok thanks didn't know that. good info awaiting my N5
Click to expand...
Click to collapse
One of the first things you should do after root
TWRP has also a built-in feature as you may know.
prulleman said:
isn't EFS something samsung specific? can't find it on my N4
Click to expand...
Click to collapse
They all have efs but only some phones implement it as a dedicated partition or mounted filesystem.
Sent from my Nexus 5 using Tapatalk