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
MTKDROIDTOOLS BACKUP




Then navigate to Backup

This backup will save in your mtkdroid tools backup folder.

MTKDROIDTOOLS BACKUP  IMEI


Method 2: Using MobileUncle Tools
Requirements:
ROOTED PHONE

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




Method 3: Using Rootexplorer
ROOTED PHONE

Install and open Rootexplorer

Go to Root Folder
Rootexplorer backup IMEI

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

Root explorer backup IMEI Nvram


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