4 Methods on How to Backup your IMEI

How to back up your IMEI

This is the most important things to do before flashing any rom or apps is to backup your imei.
After flashing ROMs or installing updates, it is possible that the phone will get an invalid IMEI or unknown baseband. Invalid IMEI would mean no mobile network connections.
Every mobile phone, GSM modem or device with a built-in phone / modem has a unique 15 digit IMEI number. I have 4 methods to back up your IMEI.




Method 1: Using mtkdroid tools

Requirements:
PC/LAPTOP
USB CABLE
ROOTED PHONE
DRIVER
mtkdroidtools.rar


Set your phone in USB debugging mode, then connect via USB cable.

Open mtkdroid tools

Click IMEI/NVRAM

Then navigate to Backup

This backup will save in your mtkdroid tools backup folder.

Method 2: Using MobileUncle Tools

Requirements:

ROOTED PHONE

mobileuncle.toolbox.apk

Open and install mobile uncle tools then navigate to backup imei. That's it!

Method 3: Using Rootexplorer

ROOTED PHONE

Rootexplorer.apk

Install and open Rootexplorer

Go to Root Folder

Navigate to data/nvram. Save this nvram folder in your sdcard.

Method 4: Using Carliv Touch Recovery 2.7 and 3.0

ROOTED PHONE

CTR 2.7 or 3.0

Flash this CTR 2.7/3.0 then go to recovery mode

Click carliv menu

Navigate to NVRAM

Choose Nvram backup

This nvram will save in clockworkmod/backup/nvram folder
Nowadays there's update in some custom recovery like twrp, philztouch and ctr that has nvram backup and restore menu. You can backup this nvram/imei by means of this custom recovery.

Credits: to the developer of this tools mtkdroid mobileuncle rootexplorer ctr