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
Open and install mobile uncle tools then navigate to backup imei. That's it!
Method 3: Using Rootexplorer
ROOTED PHONE
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.
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.
