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EFS Backup - A gentle call if anyone still missing.

OP dr.ketan

8th June 2014, 11:08 AM   |  #1  
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EFS Backup Restore tool for N900

-When you select backup - It will backup and make efs.img file onMyEFS_mm_dd-yyyy-hr-mm_Device IMEI folder on Int SD card, also it will create text file just to stamp time,date and device model while you created backup. Now move both file to safer place.
-When you needs to restore, put efs.img file (your backup) on root directory of Int SD card, run application and select to Restore. Once restore done, Reboot device.

Note : This application is not for just playing around, DON'T restore just to check/test application, Restore option must be used only when you really needs it.
Video guide




Download
https://play.google.com/store/apps/d...ketan.efsn7100
Last edited by dr.ketan; 5th September 2014 at 09:50 AM.
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8th June 2014, 11:08 AM   |  #2  
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I needs to call again because we have seen now a days that some kernel causing change in EFS and you losing IMEI if you flash older ROM.

I have already explained this in details. Again explaining shortly
- Right now we have found a new base NE1 which used by VN ROM V14 and Stock ROM NF3 (and may be all ROM base now onwards)having kernel that causing some modification in your EFS folder. A modem which is built in with ROM is compatible to read this change and you won't have any issue till you are using ROM.
-In case you downgrade any other ROM then modem of that ROM won't able to read EFS modification and ultimately can't IMEi and you won't have readable IMEI and you won't able to connect to network.
-If samsung implement such changes then all upcoming ROM all will have scenario.
-Now suppose if you have Installed sucj new base and you want to flash other ROM, you have two options

1.Flash any other ROM and after this flash new modem (which is able to read EFS modification) - Remember you have to do with everytime you flash ROM
2.If you have EFS backup which you have made prior to flashing new base, then first flash any desired ROM and then restore EFS backup (which you have made prior to VN ROM V14) - This will remove EFS modification
After this again you are free to flash any ROM - you needs to do it once only

Above said tool have Backup as well restore option. Restore option needs efs.img format. So if you have made backup with any other tool and format is different from efs.img this tool can't restore it.
Last edited by dr.ketan; 3rd July 2014 at 02:10 PM.
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8th June 2014, 11:09 AM   |  #3  
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8th June 2014, 11:11 AM   |  #4  
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one for me , for something big coming
8th June 2014, 11:14 AM   |  #5  
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Not a big/New but I think we needs this call. As I have seen many user still have not made EFS backup OR Made backup which is difficult to restore.
Hope this can be saviour.
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8th June 2014, 11:17 AM   |  #6  
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Thanks dr.Ketan,this is really helpful but a little late for me

Btw, I did reinstalled K9 without removing any of the bloats and Kids mode is not FCying anymore neither the Recorder
Last edited by ForceField; 8th June 2014 at 11:20 AM.
8th June 2014, 11:19 AM   |  #7  
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Quote:
Originally Posted by dr.ketan

Not a big/New but I think we needs this call. As I have seen many user still have not made EFS backup OR Made backup which is difficult to restore.
Hope this can be saviour.

but bro for now this is something big , even just now i saw a post about imei lost and most dont have efs backup

thanks d , your awsum
8th June 2014, 11:29 AM   |  #8  
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May be reason is I have posted this tool in theme and app section
If it was here then may be it would be better, anyway better late than never.
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8th June 2014, 12:37 PM   |  #9  
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2 Question D.R

1. using your aroma install in the K1 - 9 Roms i made an EFS backup where is it stored ?

2. if no such backup is found and alas i found my self on VN-V14 how hopeful can i be in regards of breaking our of this NE1 anchor i unknowingly put on my phone
8th June 2014, 01:04 PM   |  #10  
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Check Int SD for MyEFS folder. If created on my rom it should be there. MyEFS /efs.img and also build.prop file will be there, which show you when you made it.

Sent from my SM-N900 using xda premium

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