Hi there.
I have a ROM backed up via recovery and I am pretty sure I have backed up my EFS as well.
However upon restoring my phone to stock, I noticed upon boot that I had the generic IMEI number (004999010640000) and have been unable to make calls etc.
Upon noticing I had to re-root and install recovery (PhilZ Touch 5, CWM Base version: 6.0.3.3) to restore the ROM and hope it restores my IMEI which it didn't, next I looked for my EFS in a folder called EFS_Backup and in there is 'efs_05Aug2013-2257.tar.gz" however it appears to be empty.
I don't know what to do as I am out of warrenty and I thought I completed the steps, theres no .bin or .img files I can find.
Any help will be appreciated.
Thanks.
You have to restore it using custom restore from philz
Sent from my GT-I9300 using Tapatalk 4
rootSU said:
You have to restore it using custom restore from philz
Sent from my GT-I9300 using Tapatalk 4
Click to expand...
Click to collapse
Thanks - I've tried using "Cusrom Restore Job" and selecting EFS, however it does nothing, and my IMEI number remains the wrong one
Did you read my imei / efs thread in general > sticky roll-up?
Sent from my GT-I9300 using Tapatalk 4
richncl said:
Thanks - I've tried using "Cusrom Restore Job" and selecting EFS, however it does nothing, and my IMEI number remains the wrong one
Click to expand...
Click to collapse
you said efsBackup.tar.gz is empty so which means its 'bad' backup . so obviously it won't work.
kangerX said:
you said efsBackup.tar.gz is empty so which means its 'bad' backup . so obviously it won't work.
Click to expand...
Click to collapse
Looks like I am f****d then
How big is the .tar.gz file? It should only be 80Kb
If zero size then yes, you are screwed unless flashing a full stock 4.1.2 rom via odin makes the efs readable again (make sure it's an EMG ROM if you've EVER flashed an EMG rom to your phone)
wrong post
JJEgan said:
wrong post
Click to expand...
Click to collapse
Just an update, I managed to get my IMEI number back by flashing the MG_Basebands.zip, however the altered EFS seems to affect the GalaxSimUnlock from working as it says the phone is "Unlocked" when it's locked to Three UK.
I am just glad the phone is working.
Related
Currently on Checkrom XWLA4 2.3.6 with Speedmod kernal.
Last night I performed a Titanium backup and a Nandroid backup in preparation for an upgrade. I had previously performed an EFS backup sometime back. I didn't perform the upgrade, just completed some backups. Anyways over night something seems to have gone wrong with my phone. I wake up to find that it's showing there's no SIM card detected and then when I checked baseband version and IMEI both are showing unknown as well as a bunch of other fields.
I've tried a number of ways to restore the EFS folder. I've tried GSII_Repair, EFS Pro 1.9, kTool, and a couple of manual methods. All of which give the same result.
Some strange things that I noticed, I have an EFS folder inside of an EFS folder. The /efs folder seems to have less files then the /efs/efs folder. Also /efs/efs folder was the fold that had the .nv_data.bak and .nv_data.bak.md5. Not sure if its suppose to be that way.
Wondering what the best way to try to get my phone up and running would be.
Thanks,
Lu.
Veeko said:
Currently on Checkrom XWLA4 2.3.6 with Speedmod kernal.
Last night I performed a Titanium backup and a Nandroid backup in preparation for an upgrade. I had previously performed an EFS backup sometime back. I didn't perform the upgrade, just completed some backups. Anyways over night something seems to have gone wrong with my phone. I wake up to find that it's showing there's no SIM card detected and then when I checked baseband version and IMEI both are showing unknown as well as a bunch of other fields.
I've tried a number of ways to restore the EFS folder. I've tried GSII_Repair, EFS Pro 1.9, kTool, and a couple of manual methods. All of which give the same result.
Some strange things that I noticed, I have an EFS folder inside of an EFS folder. The /efs folder seems to have less files then the /efs/efs folder. Also /efs/efs folder was the fold that had the .nv_data.bak and .nv_data.bak.md5. Not sure if its suppose to be that way.
Wondering what the best way to try to get my phone up and running would be.
Thanks,
Lu.
Click to expand...
Click to collapse
have u tried the link below
http://forum.xda-developers.com/showthread.php?t=1264021
Sun90 said:
have u tried the link below
http://forum.xda-developers.com/showthread.php?t=1264021
Click to expand...
Click to collapse
just tried that as well and no dice :S
Veeko said:
Currently on Checkrom XWLA4 2.3.6 with Speedmod kernal.
Last night I performed a Titanium backup and a Nandroid backup in preparation for an upgrade. I had previously performed an EFS backup sometime back. I didn't perform the upgrade, just completed some backups. Anyways over night something seems to have gone wrong with my phone. I wake up to find that it's showing there's no SIM card detected and then when I checked baseband version and IMEI both are showing unknown as well as a bunch of other fields.
I've tried a number of ways to restore the EFS folder. I've tried GSII_Repair, EFS Pro 1.9, kTool, and a couple of manual methods. All of which give the same result.
Some strange things that I noticed, I have an EFS folder inside of an EFS folder. The /efs folder seems to have less files then the /efs/efs folder. Also /efs/efs folder was the fold that had the .nv_data.bak and .nv_data.bak.md5. Not sure if its suppose to be that way.
Wondering what the best way to try to get my phone up and running would be.
Thanks,
Lu.
Click to expand...
Click to collapse
The problem:
(a) You performed nandroid backup in CWM recovery while your phone was connected to the charger. This is a known bug of almost all versions of CWM recovery.
(b) Baseband missing means that your Modem was wiped off which happened as a result of the bug in (a.)
Further Explanation
a. this has nothing to do with your /efs folder
b. If baseband is missing then the phone can never read your IMEI, hence no network
Possible Solution
a. Download Modem (CWM zip format) of your choice. If you already have a modem then, skip to next step
b. Disconnect your phone from the charger
c. Boot to CWM recovery
d. Flash modem.zip you downloaded
e. Reboot phone
check your phone info after reboot (give your phone about 5 minutes to settle down), your IMEI, network etc should be back now
good luck
Jokesy said:
The problem:
(a) You performed nandroid backup in CWM recovery while your phone was connected to the charger. This is a known bug of almost all versions of CWM recovery.
(b) Baseband missing means that your Modem was wiped off which happened as a result of the bug in (a.)
Further Explanation
a. this has nothing to do with your /efs folder
b. If baseband is missing then the phone can never read your IMEI, hence no network
Possible Solution
a. Download Modem (CWM zip format) of your choice. If you already have a modem then, skip to next step
b. Disconnect your phone from the charger
c. Boot to CWM recovery
d. Flash modem.zip you downloaded
e. Reboot phone
check your phone info after reboot (give your phone about 5 minutes to settle down), your IMEI, network etc should be back now
good luck
Click to expand...
Click to collapse
it was definitely plugged into my usb port charging at the time. just tried what you recommended and still the same issue. i wouldn't be surprised if everything that i tried today with the efs folder made it worse.
any recommendations? would it help if i tried a fresh install of xwla4 (2.3.6) or something newer like xwlpg (4.0.3)?
really need to get this fixed. any info or step-by-steps are greatly appreciated.
thanks.
Veeko said:
it was definitely plugged into my usb port charging at the time. just tried what you recommended and still the same issue. i wouldn't be surprised if everything that i tried today with the efs folder made it worse.
any recommendations? would it help if i tried a fresh install of xwla4 (2.3.6) or something newer like xwlpg (4.0.3)?
really need to get this fixed. any info or step-by-steps are greatly appreciated.
thanks.
Click to expand...
Click to collapse
You shouldn't have messed with your efs partition after the issue came up. it's suppose to be the last solution and not the first one.
ok.
try this:
-Remove your SIM.
-Reboot to CWM recovery
-Flash modem
-wipe cache partition
-wipe dalvik cache
-reboot phone
-Allow phone to stay for 5 mins.
-check your phone info, check IMEI
if both are back fine, just reinsert your sim and continue normal life.
let me know what happens
Jokesy said:
You shouldn't have messed with your efs partition after the issue came up. it's suppose to be the last solution and not the first one.
ok.
try this:
-Remove your SIM.
-Reboot to CWM recovery
-Flash modem
-wipe cache partition
-wipe dalvik cache
-reboot phone
-Allow phone to stay for 5 mins.
-check your phone info, check IMEI
if both are back fine, just reinsert your sim and continue normal life.
let me know what happens
Click to expand...
Click to collapse
my bad man, i went on what i found in the search results.
i've done exactly as you specified above and still the same issue.
Veeko said:
my bad man, i went on what i found in the search results.
i've done exactly as you specified above and still the same issue.
Click to expand...
Click to collapse
No problem. We learn everyday.
please provide answers to the ff questions:
1. Is your baseband showing now?
2. Is your IMEI back?
3. Goto Settings > About, in your phone and post everything you see there.
Jokesy said:
No problem. We learn everyday.
please provide answers to the ff questions:
1. Is your baseband showing now?
2. Is your IMEI back?
3. Goto Settings > About, in your phone and post everything you see there.
Click to expand...
Click to collapse
Not sure what happened or how this happened but while I was retrieving the information from the About Phone screen the baseband was showing unknown and then once I glanced back down to get some more info, it just appeared and within another few seconds I got my IMEI and cellular services started working!
Thank you very much kind sir! Greatly appreciated!
Veeko said:
Not sure what happened or how this happened but while I was retrieving the information from the About Phone screen the baseband was showing unknown and then once I glanced back down to get some more info, it just appeared and within another few seconds I got my IMEI and cellular services started working!
Thank you very much kind sir! Greatly appreciated!
Click to expand...
Click to collapse
Glad it's solved. You are always welcome!
Thanks for this I had same problem I've managed to get the network going again by deleting everything in efs and rebooting then I replaced nv_data&nv_data.bin.md5 & imei folder and rebooted all works for about a day but it keeps losing imei for generic one. I have a stored setting which I restore with galaxy unlock but it's still kind of there if u know what I mean???? Any help me on this?
Mash able jb stable siyah 4.1.2+
shopsdesire said:
Thanks for this I had same problem I've managed to get the network going again by deleting everything in efs and rebooting then I replaced nv_data&nv_data.bin.md5 & imei folder and rebooted all works for about a day but it keeps losing imei for generic one. I have a stored setting which I restore with galaxy unlock but it's still kind of there if u know what I mean???? Any help me on this?
Mash able jb stable siyah 4.1.2+
Click to expand...
Click to collapse
When you have this kind of problem, messing with /efs should always be the last solution and not the first one.
Swyped from my Samsung Galaxy SII
Thanks for the advice But what other solutions were there? I thought back to Sammy was the last resort? Is there any constructive feedback? Or just dissing?
Sent from my GT-I9100 using xda premium
shopsdesire said:
Thanks for the advice But what other solutions were there? I thought back to Sammy was the last resort? Is there any constructive feedback? Or just dissing?
Sent from my GT-I9100 using xda premium
Click to expand...
Click to collapse
in your own case, where baseband and imei was missing, changing anything in the efs comes last because, if it's other thing related, flashing modem , firmware and things like that should fix the problem.
Then the last thing is messing with /efs partition.
Why, because, efs partition is not touched during flashing of ROM/firmware. It contains sensitive files, and should only be modified as last resort.
Swyped from my Samsung Galaxy SII
I did a back up on sd and pc. Before. I had only flashed from rr 2.6.1 rom to a jb rr rom after a few days of not changing any thing it came up network locked enter code etc. Whilst out driving so nothing I changed iko. Now it still changes imei but I have a stored working backup so I jus restore that and reboot. Would a modem and rom have to be compatible? I've never changed my modem do I need too and is it flashable? thanks
I only have these problems cos standard isn't different..
shopsdesire said:
I did a back up on sd and pc. Before. I had only flashed from rr 2.6.1 rom to a jb rr rom after a few days of not changing any thing it came up network locked enter code etc. Whilst out driving so nothing I changed iko. Now it still changes imei but I have a stored working backup so I jus restore that and reboot. Would a modem and rom have to be compatible? I've never changed my modem do I need too and is it flashable? thanks
I only have these problems cos standard isn't different..
Click to expand...
Click to collapse
in your own case, No!
Swyped from my Samsung Galaxy SII
Dats what I thought so what shud I be looking into?
Sent from my GT-I9100 using xda premium
shopsdesire said:
Dats what I thought so what shud I be looking into?
Sent from my GT-I9100 using xda premium
Click to expand...
Click to collapse
GII_repair (app), you must backup your efs first,
Or manually repair your efs folder by following the tutorial here: forum.xda-developers.com/showthread.php?t=1264021
Swyped from my Samsung Galaxy SII
Ok so I went through the steps again with unlock etc and it been around 5hours of constant use and no signal drop... I'm sure I did this before though although I didn't make two nvdata copies n renamed them. I jus copied them both separate cheers guys
Sent from my GT-I9100 using xda premium
shopsdesire said:
Ok so I went through the steps again with unlock etc and it been around 5hours of constant use and no signal drop... I'm sure I did this before though although I didn't make two nvdata copies n renamed them. I jus copied them both separate cheers guys
Sent from my GT-I9100 using xda premium
Click to expand...
Click to collapse
Nice to hear that
Hi guys
I was using slimbean 6 with SiyahKernel 1.9.1. I did a fresh wipe and install of slimbean 7. After the install and when booting i still got the siyah logo which I though was strange. After boot im not getting any signal. I then reverted back to my backup of slimbean 6 and I STILL have no signal. It's odd becuase it was working fine before.
I've tied using perseus kernal and that wont boot slimbean.
What can I try to get signal back?
thanks
Jamie
Standard same question reply .
Check IMEI
Check correct modem and CSC .
Check sim card .
Read slimbean thread
or flash stock rom for your network and location .
jje
if wrong imei - restore the efs backup. no backup - replace the motherboard
Glebun said:
if wrong imei - restore the efs backup. no backup - replace the motherboard
Click to expand...
Click to collapse
Yep no imei number etc. Its printed on the back of my phone. If i have no efs can i enter it manually?
I cant remember if i did an efs backup. Where can i restore in clockwork or is it done in odin?
Some Nandroid backup EFS .
Restore
Fails Try flashing stock rom via Odin ,
Fails buy a new motherboard .
jje
no, you can't enter it manually. look in the internal SD for anything that has efs in its name
Glebun said:
no, you can't enter it manually. look in the internal SD for anything that has efs in its name
Click to expand...
Click to collapse
my phone erased my F'*** sd card 2 days ago! I'm looking at samsung s3 toolkit but cant see an option
cramhead said:
my phone erased my F'*** sd card 2 days ago! I'm looking at samsung s3 toolkit but cant see an option
Click to expand...
Click to collapse
I still have an efs folder on my phone, but i think it makes one if something goes wrong? Couldn't see a .efs file in there .....
Happened to me before.
I falshed a rom with different phone model.
Installing stock firmware via odin worked and saved my phone.
i have a Developer IMEI now and no Signal after i restore my nandroid Backup.
how can i restore my original IMEI? i saw that in my nandroid backup there is a EFS Folder, but when i restore it i still have the same issue.
now i am back to 4.0.4 Stock Rom
i already tried the tutorial with root explorer and try to exchange the nv_data.bak but its not working for me.
See the IMEI/ EFS post in general section
how can i restore my original IMEI?>>> as per the standard method restore the EFS folder that you backed up before flashing .Multiple posts on the subject .
jje
If you have flashed the EMG4 rom you should check the topic in General section
Sent from my GT-I9300 using Tapatalk 4 Beta
JJEgan said:
See the IMEI/ EFS post in general section
how can i restore my original IMEI?>>> as per the standard method restore the EFS folder that you backed up before flashing .Multiple posts on the subject .
jje
Click to expand...
Click to collapse
i dont have a efs back up.
Assuming you didn't flash EMG4
1) restore backup. No backup?
2) try return to stock (complete unroot). Still broken?
3) send for repair
Sent from my GT-I9300 using Tapatalk 4 Beta
shady225 said:
i dont have a efs back up.
Click to expand...
Click to collapse
try Emergency recovery with KIES. It helped me in the past.
aspot72 said:
try Emergency recovery with KIES. It helped me in the past.
Click to expand...
Click to collapse
thank you for your answer.
I tried the emergency recovery with kies. but i still have the same developer IMEI and no connection.
shady225 said:
thank you for your answer.
I tried the emergency recovery with kies. but i still have the same developer IMEI and no connection.
Click to expand...
Click to collapse
Do hard reset with buttons, then use KIES emergency recovery and hard reset again. When I messed with some custom ROM happened me the same. I think 2 or 3 times I had to use KIES when finally was ok.
Also use KIES and tick allow storage and then click Update unsuccesfull. You'll get a recovery code within KIES. Use that code for recovery. If still fail, you can send it in stating that update damaged your phone.
i send it to repair service and they restored the EFS Folder.
Everything is fine now.
Hi everyone,
What would be the general steps to take to update to 4.3 from 4.0.4. I messed up my phone a while back updating (no signal basically, no calls, etc, yeah... my fault for not reading...) so I had to take it to a shop. They downgraded to 4.0.4 and I'm not even sure my IMEI is the same...
Anyways, how can I upgrade and not lose their "fix". I remember reading about backing up my modem, flashing then reflashing my modem. Would that be enough?
Is there any backups that I can do that will create an "image" of the phone that I can safely flash back to in case anything goes wrong?
I currently have SuperSu and I think CWM (but an older version).
Any help would be appreciated!
Backup your efs folder, then make a nandroid of your rom. You will end up with no network after upgrade, try patched modern and kernel but there is no guarantee.
Search and read for the hundreds of other people who did the same thing.
Sent from my GT-I9300 using Tapatalk
boomboomer said:
Backup your efs folder, then make a nandroid of your rom. You will end up with no network after upgrade, try patched modern and kernel but there is no guarantee.
Search and read for the hundreds of other people who did the same thing.
Sent from my GT-I9300 using Tapatalk
Click to expand...
Click to collapse
Hmm, alright.
I'll make an EFS back up and the nandroid of my ROM just in case anyways. Thanks.
zuperxtreme said:
Hmm, alright.
I'll make an EFS back up and the nandroid of my ROM just in case anyways. Thanks.
Click to expand...
Click to collapse
take more than one EFS in many methods rather than single one.
After having S3 for some months, I decided to update it to 4.3.
So I searched online and saw some tutorials how to root and install costum ROMs.
I read few tutorials to be sure how to do that and after all went good and the ROM installed, One problem has rised: NO SIGNAL!
so I wiped all and installed a ROM STOCK.
After that the signal came back "half way". It's showing signal bars but I can't call to anyone, even after calling to my provider...
I just don't know what to do. Please help
VentAcruZ said:
After having S3 for some months, I decided to update it to 4.3.
So I searched online and saw some tutorials how to root and install costum ROMs.
I read few tutorials to be sure how to do that and after all went good and the ROM installed, One problem has rised: NO SIGNAL!
so I wiped all and installed a ROM STOCK.
After that the signal came back "half way". It's showing signal bars but I can't call to anyone, even after calling to my provider...
I just don't know what to do. Please help
Click to expand...
Click to collapse
well these tutorial you've read were either very bad or you haven't read them correctly, because probably you missed the important step of the efs backup. see therefor the stickies thread or the thousands of similiar questions here in the q&a.
Darkened_Sky said:
well these tutorial you've read were either very bad or you haven't read them correctly, because probably you missed the important step of the efs backup. see therefor the stickies thread or the thousands of similiar questions here in the q&a.
Click to expand...
Click to collapse
Ok... so if I don't have a efs backup so I am screwed I got it.
But I think I found somothing. it's called efs.tar that was on my phone. (attched)
What can I do with this file?
Thank you
VentAcruZ said:
Ok... so if I don't have a efs backup so I am screwed I got it.
But I think I found somothing. it's called efs.tar that was on my phone. (attched)
What can I do with this file?
Thank you
Click to expand...
Click to collapse
That is your backup flash with odin
( When you flashed a custom rom it probably backed up your efs some roms backup by default)
I would just backup your efs you have at the moment just in case you have problems flashing. You will then be able to return to how your efs is now even though it is not fully working..
Or try this app >> https://play.google.com/store/apps/details?id=net.hellcat.droiddev.ktool <<
The phone has to bee rotted to use ktool?
I also understand from the link you did about the EFS that there are two types of base bands and if I have an efs backup that I did on V1 baseband so I can't restore it on a v2 baseband, so my conclusion is to get back to 4.1.2... correct me if I am wrong
VentAcruZ said:
The phone has to bee rotted to use ktool?
I also understand from the link you did about the EFS that there are two types of base bands and if I have an efs backup that I did on V1 baseband so I can't restore it on a v2 baseband, so my conclusion is to get back to 4.1.2... correct me if I am wrong
Click to expand...
Click to collapse
good that you found efs backup
yes you need root. or you use the recovery philz touch to restore your efs (then you don't need root, but a custom recovery).
well samsung roms based on 4.3 need efs v2, so you have to go back to 4.1.2 to restore your efs v1 backup.
if everything is working again, I would suggest you to use oding to upgrade to 4.3, because then everything should be updated correctly (but keep your efs backup, and make another one, just to be sure)
then you can try out again custom roms based on sammy 4.3
So what is the best option to restore it?
Because before I tried (while 4.3 stock rom was installed) the flash it with Odin but Odin always crashed when I was uploading it to Odin.
With kTool I tried before but when I am clicking on the button it says that it restored but he didn't asked for directory, when do I need to put it?
The same story with phliz, I also tried with this and he don't asks for directory, only asking whan the ending if the file-tar to bin...
VentAcruZ said:
So what is the best option to restore it?
Because before I tried (while 4.3 stock rom was installed) the flash it with Odin but Odin always crashed when I was uploading it to Odin.
With kTool I tried before but when I am clicking on the button it says that it restored but he didn't asked for directory, when do I need to put it?
The same story with phliz, I also tried with this and he don't asks for directory, only asking whan the ending if the file-tar to bin...
Click to expand...
Click to collapse
Just extract the efs.tar and copy its contents to /efs.
vinceducut said:
Just extract the efs.tar and copy its contents to /efs.
Click to expand...
Click to collapse
Where is this folder located? I can't find it
and does it for xTool and phliz recovery destinations for teaking the recovery from?
Edit:
I found the /efs. I dind't know that I need to use root explorer...
I exchanged the files with my back up and suddenly instead of 0049 IMEI I got 0000 IMEI.
I tired also to flash a modem and also didin't work...
VentAcruZ said:
Where is this folder located? I can't find it
and does it for xTool and phliz recovery destinations for teaking the recovery from?
Edit:
I found the /efs. I dind't know that I need to use root explorer...
I exchanged the files with my back up and suddenly instead of 0049 IMEI I got 0000 IMEI.
I tired also to flash a modem and also didin't work...
Click to expand...
Click to collapse
Hmm... try installing another EFSv2 modem, then do the /efs copying part again.
Suddenly after so restarts, the IMEI got back
But... The SN now is 0000000000
You'll need to correct the permissions of the files you've copied. Try searching for someone who already did this and duplicate what they did.
Sent from my GT-I9300 using Tapatalk
Ok,
I tried something new. I flashed a new modem, backed up a full backup and then installed a costum rom 4.3.
the IMEI GOT BACK! And even the SERIAL NUMBER!
But I think the serial number is not good because he has 16 or 17 (I don't remember) digits (numbers and letters).
But still i have signal bars but can't make or receive calls he says: "No registered on network"
For the finalle, I tried ARIZA patch but he Is stuck on 0%...
here I stopped, I really don't know what to do.
Don't use the Ariza patch once you've got your IMEI and SN back. Maybe try flashing a new stock version of Android with a EFSv2 baseband so as to not go through the copying fiasco.
Sent from my GT-I9300 using XDA Free mobile app
VentAcruZ said:
Ok,
I tried something new. I flashed a new modem, backed up a full backup and then installed a costum rom 4.3.
the IMEI GOT BACK! And even the SERIAL NUMBER!
But I think the serial number is not good because he has 16 or 17 (I don't remember) digits (numbers and letters).
But still i have signal bars but can't make or receive calls he says: "No registered on network"
For the finalle, I tried ARIZA patch but he Is stuck on 0%...
here I stopped, I really don't know what to do.
Click to expand...
Click to collapse
Try this >> http://forum.xda-developers.com/gal...ii-network-problem-update-sn-t1918601/page199 << look at post 1984
tallman43 said:
Try this >> http://forum.xda-developers.com/gal...ii-network-problem-update-sn-t1918601/page199 << look at post 1984
Click to expand...
Click to collapse
Thank you!!!!!!!!!!!!!!!!!!!!!
It worked!!!!!!!!!!!
:good::good::good::good:
VentAcruZ said:
Thank you!!!!!!!!!!!!!!!!!!!!!
It worked!!!!!!!!!!!
:good::good::good::good:
Click to expand...
Click to collapse
:highfive: