Wiered efs corruption. - Galaxy S II Q&A, Help & Troubleshooting

Ok sk last night I went to best and forgot to plug my phone in. In the morning I pluged the phone in and turned it up.
Once booted up I wasn't able to connect to a cellular tower. I looked and baseband said unknown, I than checked the imei which was also unknown.
At this point I knew my efs folder was corrupt. No problem I had it backed up, so I restored it. After a reboot everything worked.
But if I do a reboot after that I once again get the efs corruption.
Any help would be great.
Sent from Samsung Galaxy S2 on TELUS.

Bump anyone?
Sent from Samsung Galaxy S2 on TELUS.

Any advice kinda worried about this.
Sent from Samsung Galaxy S2 on TELUS.

How you are restoring efs i have it only as read only so i can not overwrite it.

mahatma said:
How you are restoring efs i have it only as read only so i can not overwrite it.
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Click to collapse
Use nitrality to backup and restore efs!!
Lol, perry the platypus.
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Related

Flashing custom ROM kills EFS

I have problem with flashing, bought sgs2 today, wanted to make flash custom rom, phone is rooted with Doomlord exploit and there is cf root kernel flashed for cwm access (flashed via odin mobile), no simlock
When I flash any custom rom, phone apk keeps crashing, there is no cellular network and no IMEI in About the Phone section. I have tried restoring IMEI with EFS pro but after reboot its the same problem. I have EFS backup and nandroid backup.
What is wrong, I have two other phones, sgs2 and note, I didn't have those problems before, what is wrong this time? Any help will be great for me, I would appreciate ideas.
Is your phone plugged in to the wall charger or a USB port.
I used a custom ROM that would not allow me to reboot plugged in. Same problems as you.
When I reboot unplugged, service returns.
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I'm aware of this problem, happend to me before, but unplugging doesn't help in that case. When I delete nv_data.bin and nv_data.bin.md5 it helps instantly but returns after reboot.
I have nv_data.bak in this folder and its some old file, like 2010 old, should I deleted it or something?
solved with wipe, which gave me random IMEI then restored right one with EFS Pro (thanks a lot for Dev Team of that app)
I keep reading about people loosing their ime after a flash but never bothered to remember if the flash was via CWM or Odin.
This might already have been investigated and I've missed it but it would be nice to know if anyone has lost their ime using Odin or if it's only through CWM.
This looks like it's happening more and more so it would be good to find out the cause.
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This happened me yesterday, glad you managed to fix it, I didn't have a backup but thankfully there is a market app called GSII-repair and it can restore imei without a backup, hope this helps someone
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eamon0989 said:
This happened me yesterday, glad you managed to fix it, I didn't have a backup but thankfully there is a market app called GSII-repair and it can restore imei without a backup, hope this helps someone
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i cant find this app you talking about..what is the exact name or dev?
dzel said:
i cant find this app you talking about..what is the exact name or dev?
Click to expand...
Click to collapse
Google finds it
http://www.androidapps-home.com/gsii-repair-android-2555711.html
jje

[Q] O.K just screwd up my IMEI /EFS erased

hi Guys
trying to unlock my galaxy s3 ,my EFS folder was erased ,
I didn't made any backup of any kind, actually i trusted my friend to do the unlock,
and that's what happens...
is there ant way of restoring the EFS folder ?
afaik if you didn't make a back up, you're screwed. but I did hear something about going on google play and obtain your imei from there...the rest idk
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do you have any other software installed on the phone already ?
I had the same problem. Did not back anything up. And mine was rooted. I just flashed the stock Indian rom and went to the Samsung service centre. They did not check the binary counter. And replaced my motherboard for free ie under warranty. I stay in Navi Mumbai. Hope this helps you.
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You can try this although this is for gs2
http://forum.xda-developers.com/showthread.php?t=1264021
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eyal4fun said:
hi Guys
trying to unlock my galaxy s3 ,my EFS folder was erased ,
I didn't made any backup of any kind, actually i trusted my friend to do the unlock,
and that's what happens...
is there ant way of restoring the EFS folder ?
Click to expand...
Click to collapse
I would say reflashing the stock rom...that solved it for me on the s1 in the past.
I did the same flashing a dodgy ROM on my Nexus S along with around another 100 or so people. Unfortunately the Devs were unable to fix it. Reverted back to stock locked the bootloader and sent it back to Samsung.
Got it back about 10 days later repaired and with the bootloader unlocked. I'm sure they knew I'd messed with it and that's why they sent it back with bootloader unlocked.
If you do have to send it back let us know how you get on. It would be interesting to see if Samsung will refuse warranty or not.
Hopefully you won't have to go down that path but I wouldnt hold your breath.
Marc
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Depending on how he tried to unlock it, he had to transfer the file to the computer.
Are you sure the original nv_data.bin is not still stored _somewhere_?

No 3G/edg/G after flashing CUSTOM roms

I can't figure why after flashing custom (non-stock branded/unbranded) roms I lose my mobile internet connection in my phone. I tried different modems to no avail. Is it safe to flash a modem, CSC code and baseband of a ICS4.0.3 stock rom to a custom JB rom (resurrection remix)?
Did you set up APN settings? If you didn't know the settings, call your operator customer service, they'll tell you everything you need to know.
Sometimes new roms erase apn settings or dont set it up.
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boki9999 said:
Did you set up APN settings? If you didn't know the settings, call your operator customer service, they'll tell you everything you need to know.
Sometimes new roms erase apn settings or dont set it up.
Sent from my Galaxy S2 GT i9100
Click to expand...
Click to collapse
yep, they are set up. I even tried removing and readding them.
Maybe your efs got corrupted. If you have a backup, try restoring it.
Sent from my Galaxy S2 GT i9100
Well, I used kTool to back them up. I just did a "check EFS backup" and it reports that 93% of it is different now. Should I restore this backup?
Weird thing is I tried CM9 before and had the same problem, so whent back to 4.0.3 and everything was fine. That's when I did the EFS backup
note: the backup was done on stock unbranded 4.0.3 from Samsung Argentina (my country)
offtopic question: if my EFS gets screwed up, would restoring to stock rom fix them?
Dexter_prog said:
Well, I used kTool to back them up. I just did a "check EFS backup" and it reports that 93% of it is different now. Should I restore this backup?
Weird thing is I tried CM9 before and had the same problem, so whent back to 4.0.3 and everything was fine. That's when I did the EFS backup
note: the backup was done on stock unbranded 4.0.3 from Samsung Argentina (my country)
offtopic question: if my EFS gets screwed up, would restoring to stock rom fix them?
Click to expand...
Click to collapse
If you say efs is fine on stock rom, then yes, it would be fine. But you could just try restoring efs so you don't have to go back to stock. Stock would suck, wouldn't it?
Sent from my Galaxy S2 GT i9100
Stock sucks man but what about the other thing I asked?
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Restore stock rom to have working efs or restore the efs backup you have from before.
The problem seems to be with operators using a proxy for internet. I tried my girlfriend's Sim from another operator that doesn't use a proxy and internet was fine :/
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By the way, I restored to my stock cwm backup and it still reports that 93% differs
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CAN a Rom Change The **IMEI** number

I am on CM10.1
and i have noticed today that my imei no is different at back of device and when i press *#06#
IMEI ON BOX AND BACK OF DEVICE IS SAME
BUT
on mobile its different
Its possible if your efs folder gets damaged .
It happens from time to time when people flash, I would restore my backup if the efs folder.
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delsus said:
Its possible if your efs folder gets damaged .
It happens from time to time when people flash, I would restore my backup if the efs folder.
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Click to collapse
Or flash stock rom.
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delsus said:
Its possible if your efs folder gets damaged .
It happens from time to time when people flash, I would restore my backup if the efs folder.
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Click to collapse
I believe he has a valid imei but it does not match that on the box or back..this is the first time I have seen this case..
1. Some one opened the box and replaced the original phone..
2. Refurbished phone in a different box..
3. Somehow the phone got mixed up in packaging..
Any of the above scenarios may be the reason..
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zoot1 said:
I believe he has a valid imei but it does not match that on the box or back..this is the first time I have seen this case..
1. Some one opened the box and replaced the original phone..
2. Refurbished phone in a different box..
3. Somehow the phone got mixed up in packaging..
Any of the above scenarios may be the reason..
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none of those are possible, because the imei under the battery is the same as on the box
do u have EFS backup ??
i think ur efs folders get damaged while installing Rom
try to flash stock rom if didn't work u have to restore ur efs backup
yahyoh said:
do u have EFS backup ??
i think ur efs folders get damaged while installing Rom
try to flash stock rom if didn't work u have to restore ur efs backup
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yes i have efs backup.
Glebun said:
none of those are possible, because the imei under the battery is the same as on the box
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Click to collapse
ya now when I think of it none of them are possible..well it might have happened when Samsung was flashing the phone for the first time and there was a mixup....i don't think restoring the backup will solve it as the backup will have the same IMEI...flashing the rom never changes the EFS to something valid..
nitinvaid said:
yes i have efs backup.
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I would restore your efs backup it will at least rule that out.
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From what I've seen on previous posts if imei is zeroes like "0000000000" it means an efs issue, if completely different that really doesn't sound right at all.
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Does it start 0049......?
Wrong IMEI is usually one of two IMEI codes . 0000 and something like 0046 .
Reads as a corrupt EFS folder to me as presumption is that it was the correct IMEI before you started flashing roms .
jje
on box and back of battery it starts with 353719**********
and at mobile it starts with same 353719********** that stars are changed
just now i flashed the samsung official indian rom and the IMEI no is still different
s guess its samsung mistake
possible reason is u got repaired galaxy s3. i mean Samsung service center guys changed motherboard and they forget that now imei number also changed.
exynoss said:
possible reason is u got repaired galaxy s3. i mean Samsung service center guys changed motherboard and they forget that now imei number also changed.
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Click to collapse
Nope mine is just one month old it has not seen any face of any service center member
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Helppppp pleasee

Hey guys i have a real problem with my s3...i installed a rom but i didnt have signal, so i follow a tutorial to fix it, but now i just have this on my cellphone and no signal at all...
I tried everything, even restoring my nandroid backup... What can i do?
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R.cortesia69 said:
Hey guys i have a real problem with my s3...i installed a rom but i didnt have signal, so i follow a tutorial to fix it, but now i just have this on my cellphone and no signal at all...
I tried everything, even restoring my nandroid backup... What can i do?
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Click to collapse
I hope you didn`t mess up your EFS folder, did you back it up? If the EFS folder is corrupted/wiped and you cannot restore it you need to take the device in for repair.
Do you have the correct APN settings in settings, mobile networks?
I have a backup of my EFS folder, but I don't know if I'm restoring it right ... how I do it? Cause I'm following a tutorial but nothing happens...
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gee2012 said:
I hope you didn`t mess up your EFS folder, did you back it up? If the EFS folder is corrupted/wiped and you cannot restore it you need to take the device in for repair.
Do you have the correct APN settings in settings, mobile networks?
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Respond please...
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R.cortesia69 said:
Respond please...
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Click to collapse
I haven`t done it yet myself, so i`am not 100% sure on how to do it. Don`t want to get you into trouble by saying the wrong thing though,. There is an option in the S3 Toolkit to restore a efs folder i think. Download the S3 Toolkit by Mskip and read it well and try it or wait for someone else who knows more about this stuff. There are also various tools like for instance K-Tool by hellcat that can backup/restore efs folders. Good luck
get the philz touch cwm recovery
get into recovery mode
go into advance, restore efs backup
done

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