What is efs? - Galaxy S III Q&A, Help & Troubleshooting

Hi everyone
Just want to know what efs is and why we have to make a back up.
Sent from my GT-I9300T using premium

a short answer is that it contains, amongst other things your imei, very important!
Worth reading this post/thread
http://forum.xda-developers.com/showthread.php?p=30682712

efs is a file in which phones imei and other importatn data is stored...
we hav to make backup it becoz if something goes wrong u can restore it n claim ur warrenty
nt please search every time before making a new thread

slaphead20 said:
a short answer is that it contains, amongst other things your imei, very important!
Worth reading this post/thread
http://forum.xda-developers.com/showthread.php?p=30682712
Click to expand...
Click to collapse
thanks alot !!

Related

[help] needed a backup file efs.img of i9300

My galaxy I9300 is lost some file in /efs folder and i don't have a full backup. So, i need a full backup efs.img or efs.tar.gz to restore it.
I hope someone can share it for me.
thank for share !!!!!!!!!!!!!!!!!!!!!!!
What so you can have our imei number!!!! Nice try,...
Try flashing a stock rom see if it brings it back, there is also plenty of threads about this subject you should of done some reading first...
Hope you get sorted
Sent from my Nexus 7 using Tapatalk 2
If you don't have a backup of your original EFS folder you are pretty much screwed
I hope you find a way around, tho.-
EFS IMEI
http://forum.xda-developers.com/showthread.php?t=1857054
http://forum.xda-developers.com/showthread.php?t=1308546
http://forum.xda-developers.com/showthread.php?t=1264021
jje
E_Goldstein said:
What so you can have our imei number!!!! Nice try,...
Try flashing a stock rom see if it brings it back, there is also plenty of threads about this subject you should of done some reading first...
Hope you get sorted
Sent from my Nexus 7 using Tapatalk 2
Click to expand...
Click to collapse
i don't lose my imei, but eri version: not availble, i think that some files were been deleted
plz, share it for me
wind070326 said:
i don't lose my imei, but eri version: not availble, i think that some files were been deleted
plz, share it for me
Click to expand...
Click to collapse
eri version unavailable is normal.
It is not efs issue. or any issue at all.
Try to explain your problem.
wind070326 said:
i don't lose my imei, but eri version: not availble, i think that some files were been deleted
plz, share it for me
Click to expand...
Click to collapse
Enhanced Roaming Indicator is showed only when your carrier use it. If not, there will be 'not available' information and you shouldn't worry about that.
i9.0.1.3k galaxy imperator
somebody can help????
Nope, not here. No-one wants to give up their own, UNIQUE IMEI number...
This isn't because we are mongrels, just that we aren't stupid....
ultramag69 said:
Nope, not here. No-one wants to give up their own, UNIQUE IMEI number...
This isn't because we are mongrels, just that we aren't stupid....
Click to expand...
Click to collapse
Agree with you ! No-one will give you their EFS backup (containing the must important information about their galaxy S3).
Foolish guy is foolish....
If you really want someone's IMEI number than you should be permanently banned from this forum. IMEI clonning is illegal and stupid because both phones will be inoperative if thay will have the same identification numbers.
You said your IMEI is ok and you have problems with ERI. We have told you that this isn't an error. Don't push up.
i9.0.1.3k galaxy imperator
wind070326 said:
My galaxy I9300 is lost some file in /efs folder and i don't have a full backup. So, i need a full backup efs.img or efs.tar.gz to restore it.
I hope someone can share it for me.
thank for share !!!!!!!!!!!!!!!!!!!!!!!
Click to expand...
Click to collapse
REPEAT it is against the rules of XDA to post such questions .
It is also illegal to clone an IMEI .
jje
hi
i need a clean efs back up as well if some1 cud share wud be great.
I dont need imei i just restored it with box. Just remove nv_data files from archive..if u so worried about your imei.
Lol? Seriously, who would give their unique Ime to some random person on the Internet?
Sent from my GT-I9300 using xda app-developers app
IroniX2 said:
Lol? Seriously, who would give their unique Ime to some random person on the Internet?
Sent from my GT-I9300 using xda app-developers app
Click to expand...
Click to collapse
omg remove nv_data files from backup to prevent imei clone...read before type
I don't know what the dude who begun this thread is or was up to but I do know that I have lost my EFS backup and as such have a GS3 I9300 which isn't working to fix.
I have searched at length and have come to know the IMEI and serial of the phone can be edited with a HEX Editor out of the nv_data.bin file and this information is on block 0188150 a-f and 0188160 0-4. I have tried it but since my nv_data.bin which I generated was corrupted in the first place, it made little or no difference.
If that truly is possible, why not edit those bits out and then share leaving pointers on how to get it personalized per the benefactor's phone.
Inasmuch as it's "risky" because no one is to be trusted, you should acknowledge the fact that, it is because we're searching for answers and solutions to questions and problems we're having, and discoveries we've made with our handsets, that is why we are here in the first place.
I believe there is ALWAYS a way to go about things differently. Let's help one another!
So who is gonna help poor me? Please ...
Dude, if we give you our efs backup/s, you'd have OUR IMEI numbers, OUR SERIAL numbers.
That's illegal, first thing.
Second of all, that means you have our warranty, so if you send your device in, and you don't have warranty anymore - we don't either..
So, basically: Big T for tuff...
It's your own fault, for not creating a proper backup, live with the consequences..
LG familyguy59/Beatsleigher
yankee86 said:
:good::good::good: but dont need that just some codes enough for get ur network back
Click to expand...
Click to collapse
Are you being fu**ing serious? Get lost!
Reporting you twice..
Hey guys...my i9300 is soft bricked... I need an efs backup img file or zip file...plz help...

(Q) why IMEI changes after flashing Roms?

I have seen that many many users have problem with their IMEI after flashing custom Roms . can some one please explain why this happens? I know that flashing a nandroid backup will solve issue but please explain WHY this happens at the first place?
Sent from my GT-I9300 with a BIG
Some users have this problem as it is only the users who have not followed rule one i guess its poor flashing .
Rule one backup EFS ,
NOTE NANDROID neither backs up nor restores EFS folder so your statement is plain wrong .
jje
ok sorry for the wrong statement.
Sent from my GT-I9300 with a BIG
I admit I would also be curious as to what operations make the IMEI change? As in, what kind of mistakes from the user can lead to messed up IMEI / EFS?
PS: my EFS is backed up in a gazillion places
Really why and how does a poor flash affect IMEI of a phone? And how does flashing can go wrong unless u deal with pit files?
Sent from my GT-I9300 with a BIG
This is also a kind of mystery for me too. I too want to know the fact behind this!
---------- Post added at 06:09 PM ---------- Previous post was at 05:27 PM ----------
Nobody knows why? Strange
jaidev.s said:
Really why and how does a poor flash affect IMEI of a phone? And how does flashing can go wrong unless u deal with pit files?
Sent from my GT-I9300 with a BIG
Click to expand...
Click to collapse
Let us look at it like this 99% to 100% of posts saying changed or lost IMEI are from Noobs . Noobs can do wonders as they don't read FAQS and GUIDES and prefer to blunder on . Thats why my reply was bad flash .
Odia is the guy who would probably no why and may even have already posted why .
jje
Ok
Sent from my GT-I9300 with a BIG

[Q] Samsung Galaxy S2 lost EFS

Good day. I recently somhow managed to lose the efs folder and hence all the imei etc on my phone. I have tried lots of app, tried a walkthrough restoring it. still stuck. any ideas?
Mat
mattyc2003 said:
Good day. I recently somhow managed to lose the efs folder and hence all the imei etc on my phone. I have tried lots of app, tried a walkthrough restoring it. still stuck. any ideas?
Mat
Click to expand...
Click to collapse
Have a look here for EFS-BackUp Pro => http://forum.xda-developers.com/showthread.php?t=1308546
You should have created a backup of your EFS partition before flashing or deleting anything.
Remember it for the next time ... first create a backup !
EDIT:
Another thread about recovering the IMEI => http://forum.xda-developers.com/showthread.php?t=1264021
And one more with a guide to repair EFS => http://forum.xda-developers.com/showthread.php?t=1596842
Good luck !
I could be mistaken but I think a nice,helpful chap on here(Mistahbungle) knows a guy that can possibly fix your efs problem.
Maybe he'll read this and advise.
Sent from my GT-I9100 using xda premium
theunderling said:
I could be mistaken but I think a nice,helpful chap on here(Mistahbungle) knows a guy that can possibly fix your efs problem.
Maybe he'll read this and advise.
Sent from my GT-I9100 using xda premium
Click to expand...
Click to collapse
I think it's Odia you are thinking of? OP, PM him and he will get back to you eventually. He will help you hopefully, for a small fee of course!
Sent from my GT-I9100
Yeah thats him cheers.
Sent from my GT-I9100 using xda premium
Thank you for this valuable information.
It_ler said:
Have a look here for EFS-BackUp Pro => http://forum.xda-developers.com/showthread.php?t=1308546
You should have created a backup of your EFS partition before flashing or deleting anything.
Remember it for the next time ... first create a backup !
EDIT:
Another thread about recovering the IMEI => http://forum.xda-developers.com/showthread.php?t=1264021
And one more with a guide to repair EFS => http://forum.xda-developers.com/showthread.php?t=1596842
Good luck !
Click to expand...
Click to collapse
I am a newbie, although I rooted my phone months ago. I will be upgrading to Ice Cream Sandwich soon and am looking for the best, easiest, and safest way to do it. Most of all, I'm soooo glad and thankful you shared this important information on how to back up my efs folder.
Thank you so much for the information. By the way, this is my first real post here although I've relied heavily on this forum for information and advice.
I love this forum!:good:

[Q] EFS Backup, bla bla bla (make sticky)

We are so manny that have tried alot here, but our SGS3 have turned into a PDA and no use Tried earliere to create a guide or get one that worked after installing a MG4 ROM, but did not have any success and my phone still have the genetric IMEI, everybody says restore your EFS backup BUT I don't have any of those.
Know here is a solution for it, but have not foundt it yet, alot of people are crying ablout this that our fones are useless.
Moderators says stop posting and read 1000's of other post that have the same problem, but when I don't have found any or nobody have PM'ed me with a solution, then I ask before everybody is post about the same problem.
Can anyone make a stiky post with some ways to restore lost IMEI or guide us true a restore of a rom that reads our IMEI correct again?
/Otto
Step 1) restore efs backup
Step 2) try reflash original rom
Step 3) if you were ever on mg4, ensure you stick with mg4 baseband
Step 4) send for repair
There's your guide.
Sent from my GT-I9300 using Tapatalk 4 Beta
rootSU said:
Step 1) restore efs backup
Step 2) try reflash original rom
Step 3) if you were ever on mg4, ensure you stick with mg4 baseband
Step 4) send for repair
There's your guide.
Sent from my GT-I9300 using Tapatalk 4 Beta
Click to expand...
Click to collapse
THX M8, Quote you on that?
otto_di2 said:
THX M8, Quote you on that?
Click to expand...
Click to collapse
I think you just did.
rootSU said:
I think you just did.
Click to expand...
Click to collapse
Chortle chortle...... Dry wit at its best
slaphead20 said:
Chortle chortle...... Dry wit at its best
Click to expand...
Click to collapse
My wit is submerged under at least 2 inches of lager and islay single malt...
otto_di2 said:
Can anyone make a stiky post with some ways to restore lost IMEI or guide us true a restore of a rom that reads our IMEI correct again?
/Otto
Click to expand...
Click to collapse
You were not alone my friend. I had same issue and same levels of frustration for days.
You could have seen my thread but it was sgy specific.
"Solution": Use odin flash stock rom firmware with "Clear EFS".and "Repartition" checked.
The above was only solution that worked for me. I recovered imei.
Once restored I took backup of EFS using galaxytoolbox app on playstore and copied those img files to pc for future emergency.
Pressing THANKS easier than typing.
Sent from s5360 GB DDMD1 rooted stock.
Repartition tends to brick the s3
Sent from my GT-I9300 using Tapatalk 4 Beta
otto_di2 said:
We are so manny that have tried alot here, but our SGS3 have turned into a PDA and no use Tried earliere to create a guide or get one that worked after installing a MG4 ROM, but did not have any success and my phone still have the genetric IMEI, everybody says restore your EFS backup BUT I don't have any of those.
Know here is a solution for it, but have not foundt it yet, alot of people are crying ablout this that our fones are useless.
Moderators says stop posting and read 1000's of other post that have the same problem, but when I don't have found any or nobody have PM'ed me with a solution, then I ask before everybody is post about the same problem.
Can anyone make a stiky post with some ways to restore lost IMEI or guide us true a restore of a rom that reads our IMEI correct again?
/Otto
Click to expand...
Click to collapse
You can't find a solution to EFS corruption when not having a backup, because there isn't one! If the three suggestions by RootSU don't work then no amount of crying is going to fix your phone, send it for repair.
All the guides and stickies have good advise on what to do before you customise your phone -backup your efs folder keep it safe.
EFS Pro link here .
http://forum.xda-developers.com/showthread.php?t=1308546
Its already proven that stickies are of no use as all the stickies saying backup your EFS are ignored in the first place .
jje
rootSU said:
Repartition tends to brick the s3
Sent from my GT-I9300 using Tapatalk 4 Beta
Click to expand...
Click to collapse
Then only clear efs in odin can be tried. To me solution worked without backup.
Pressing THANKS easier than typing.
Sent from s5360 GB DDMD1 rooted stock.
vikraminside said:
Then only clear efs in odin can be tried. To me solution worked without backup.
Pressing THANKS easier than typing.
Sent from s5360 GB DDMD1 rooted stock.
Click to expand...
Click to collapse
Don't take this the wrong way, but I think i9300 users should only take advice from other i9300 users, when we're talking about things like efs which differs considerably between Samsung models.
rootSU said:
Don't take this the wrong way, but I think i9300 users should only take advice from other i9300 users, when we're talking about things like efs which differs considerably between Samsung models.
Click to expand...
Click to collapse
Ok buddy. Thought concept is same. Thank you. If nothing works thought no harm in trying.
Pressing THANKS easier than typing.
Sent from s5360 GB DDMD1 rooted stock.
vikraminside said:
Ok buddy. Thought concept is same. Thank you. If nothing works thought no harm in trying.
Pressing THANKS easier than typing.
Sent from s5360 GB DDMD1 rooted stock.
Click to expand...
Click to collapse
I suppose if you are desperate and going to need a paid for repair then any trick posted will be tried .
But a significant proportion of bricked phone are due to advice not for that phone .
In some cases an IMEI repair may be done under warranty but the more you mess about the greater the risk of having to pay for a repair .
jje
JJEgan said:
I suppose if you are desperate and going to need a paid for repair then any trick posted will be tried .
But a significant proportion of bricked phone are due to advice not for that phone .
In some cases an IMEI repair may be done under warranty but the more you mess about the greater the risk of having to pay for a repair .
jje
Click to expand...
Click to collapse
Ok Sir got it. Thanks.
Pressing THANKS easier than typing.
Sent from s5360 GB DDMD1 rooted stock.

help me please imei

hi guys.
I am in a big problem , can you help me to restore me imei. I dont have a backup of imei .
3looshy99 said:
hi guys.
I am in a big problem , can you help me to restore me imei. I dont have a backup of imei .
Click to expand...
Click to collapse
all you have to know is here http://forum.xda-developers.com/galaxy-s3/general/ref-imei-efs-stuff-i9300-including-t2393289
without backup it is really difficult though
maybe if you describe exactly what you have done that you have lost it, people might be able to better help you
but first read the linked thread.
It's pointless answering these threads, they don't know how they broke the efs and didn't make a backup anyhow. There are thousands of identical questions, none of them accept that there isn't an easy solution.

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