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[Q] ESF/IMEI Recovery before anything.

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trez_man
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Question [Q] ESF/IMEI Recovery before anything.

Hey guys.

Im new here.

I have a S3 I9305 and i looked in the forum and found this thread about backing up the " ESF/IMEI " thing before doing anything else ( Root, Flash....).

Can someone explain me what are these and WHY should i do this?

Thanks in advance.
 
Glebun
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EFS folder contains your imei and may be corrupted during flashing. If it is, and you don't have a backup, you won't be able to use your phone's antenna, meaning no calls, sms, data.
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friartuckme
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yeah glebun is correct. id always recommend backing up your EFS even if not currently changing your rom
My devices

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Rekoil
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EFS does not contain IMEI on the I9305.
sony xperia z1 c6903 metallic purple

previous phones
sony xperia z c6603 royal purple - faulty backplate, returned
samsung galaxy s3 lte (gt-i9305n) marble white - sold... no more samsungs for me
htc one x glacier white - dead :'(
apple iphone 4s white - sold
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trez_man
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Quote:
Originally Posted by Rekoil View Post
EFS does not contain IMEI on the I9305.
So how do I backup the IMEI on my I9305 then ?
 
Raistlin1158
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Go here :

http://forum.xda-developers.com/show....php?t=1946915
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Nex, Est Tantum Exordium... מוות רק ההתחלה... Смерть - только начало... 死だけを始めています。...
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greatpouya
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Quote:
Originally Posted by trez_man View Post
Hey guys.

Im new here.

I have a S3 I9305 and i looked in the forum and found this thread about backing up the " ESF/IMEI " thing before doing anything else ( Root, Flash....).

Can someone explain me what are these and WHY should i do this?

Thanks in advance.
http://forum.xda-developers.com/show....php?t=1264021
 
JJEgan
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Originally Posted by greatpouya View Post

Nearly one year later ????????

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