[TOOL/GUIDE] Full NV Backup and Restore [SIMPLE] [08-03-2012]

<:GeeK:>

Senior Member
Jul 14, 2011
191
556
0
www.UltimateFlasher.com
This is a simple and easy way to backup and restore your GS3's COMPLETE NV items which hold your IMEI, IMSI, Data settings and much more!

INSTRUCTIONS:

1) Download NV reader/writer HERE and install THESE drivers.

2) Dial *#7284# and select "Qualcomm USB Settings" then check "RMNET + DM + MODEM".

*If you are running a aosp rom (cm9,cm10,aokp etc) you can use the diag method described HERE

3) Create backup.

a) Click "port" in the top left and select your samsung serial port.
b) Make sure BOTH boxes in the top bar are checked.
c) Click "Connect" in the top bar.
d) Click "Read" in the top bar.
e) Click "Read" in the lower 'NV-items' section.
f) Save the .txt file, this is your backup

*The process will take 5-10min. The file size will be roughly 3mb and "inactive item" and "bad parameter" sections are normal.
*To restore click "Write" in the lower 'NV-items' section and navigate to your backup file.

4) Dial *#7284# and select "Qualcomm USB Settings" then check "MTP + ADB".

Demonstration video HERE << Thanks to moonfire for the video.

IMEI ALREADY CORRUPT?

Use THIS custom built tool to easily generate a backup file with your properly formatted IMEI to restore your phone!

1) Enter your IMEI (find it behind your battery) in the text box up top, hit generate then hit save.

2) Use "NV-Item reader writer" to write the saved text file back to your phone and then reboot.




Thanks:
Me :p
cdma-ware
Peoplearmy
GerardAnthony
oriax123

Time and money have been invested into this project so donations are appreciated.

Donations: HERE

ATTENTION: I need a copy of someones full backup. Requirements are that you never flashed an AOSP rom (CM9, CM10, AOKP) and that your SGS3 is T-mobile. I need this to work on the data issue!
Update: The data issue is still being worked on and some progress has been made but there is still not a solid easy fix. IF YOU MADE A BACKUP THEN GOT THE DATA BUG, PLEASE MAKE A SECOND BACKUP SO THAT I CAN COMPARE THE BEFORE/AFTER!
 
Last edited:

norbarb

Account currently disabled
Dec 22, 2011
3,784
2,917
0
I post question on T-mobile sectrion ... hre is my answer for one of question Second was do i need unsecre kernel tothis too work?
 

nunyabiziz

Senior Member
Jul 5, 2007
675
65
48
I have a fully stock att s3 and unable to write back to phone. Anyone can help with a pointer or two? I can read from phone but unable to write back. Also right before it write back to phone I do notice it shows offline for a quick second but does state it has successful wrote to phone.
 

thacounty

Senior Member
Jun 26, 2008
1,511
329
103
Bowling Green
I have a fully stock att s3 and unable to write back to phone. Anyone can help with a pointer or two? I can read from phone but unable to write back. Also right before it write back to phone I do notice it shows offline for a quick second but does state it has successful wrote to phone.
Why are you trying this on a bone stock phone? Did you lose your imei?
 

<:GeeK:>

Senior Member
Jul 14, 2011
191
556
0
www.UltimateFlasher.com
I have a fully stock att s3 and unable to write back to phone. Anyone can help with a pointer or two? I can read from phone but unable to write back. Also right before it write back to phone I do notice it shows offline for a quick second but does state it has successful wrote to phone.
If you are trying to write something other than your stock IMEI it will not work. Also, make sure you have both of the boxes checked before you hit the read button at the top so that is sends the 000000 security code to the phone and unlocks it.

*when i say unlock i do not mean carrier unlock, so dont get exited people. ;)
 
  • Like
Reactions: prboy1969

<:GeeK:>

Senior Member
Jul 14, 2011
191
556
0
www.UltimateFlasher.com
This is confirmed working and will back up your IMEI. :) If you are looking for a full NV backup please refer to my post here:

http://forum.xda-developers.com/showthread.php?t=1801997

Once againgreat work <:geek:>!!

DX
Thanks!

If you want a FULL backup just read the phone with the default values [Range (Dec): 00000-65535].

It is actually a more comprehensive and easily managed backup than what the old RF NV item manager in qpst offers.

The 00550 [hex 226] is just for the single item that handles the IMEI.
 
  • Like
Reactions: Narcistic

Narcistic

Senior Member
Aug 19, 2011
198
28
0
Thanks!

If you want a FULL backup just read the phone with the default values [Range (Dec): 00000-65535].

It is actually a more comprehensive and easily managed backup than what the old RF NV item manager in qpst offers.

The 00550 [hex 226] is just for the single item that handles the IMEI.
^ Probably should update the OP with that.. As Im sure some will prefer A FULLL "just in case" backup, and others just the IMEI..
Always good to list the choices/options
 

iastonish

Senior Member
Mar 23, 2011
810
41
0
nyc
Flashed to smokins touch mii rom so I can run this, but when I click read it says Failed "connect to COM port before"

What am I doing wrong?

Edit: Nvm, got it.

:D
 
Last edited: