How to Restore IMEI Number of an Android and Recover Lost IMEI to regain network

Hi Pals, Today i'm going to show you how to Restore IMEI number in Android Devices,

What is IMEI? International Mobile Equipment Identifier

First of all you need to know that when you lost your phone IMEI then you won't have a network signal on your phone and with that you can't make calls 

How to Verify whether your IMEI is working or Lost,

simply open your phone dial pad and dial *#06# if your imei code is not stated as 00000000000000 or INVALID then this tutorial is not for you

WHY IS MY PHONE AFFECTED AND NOT SOMEONE ELSE'S PHONE?

1.You want the latest software or android update right ?

This is because of some times when you are trying to Flash Custom ROMs on your Device it can lead you in this trouble,

to avoid errors please make sure all software are testrun on a test phone before running them on your device

Now what is Custom Rom?

Briefly Custom ROMs give you the opportunity to explore brand new designs and UI ( User Interface) They can also offer new and very impressive functionality. 

The Other Rom type is called Stock ROM, an officially launched software by your phone manufacturer

To know everything about the 2 types of ROM click this link 

Now follow the simple step below to restore your phone imei

First find your Default IMEI no this will be on your receipt or just remove your phone's battery you can find it over there and for Dual sim phone there will be two imei respectively. just note them down on a Paper

Now dial *#*#3646633#*#* on your dial pad to go to the Engineer Mode (it may not work for some devices) you can also download MTK Engineer Mode App From Play store by following this Link, just connect your phone to Wifi and Download this App for the next step. (App and Dial pad both will work in the same way)

 Now, Open the the MTK Engineer mode app and swipe left side to go into Connectivity.

In the Connectivity click on the CDS information. 

Tap on the Radio information.

 you will be able to see Phone 1 and Phone 2 (if you have a Dual Sim Phone)

Just click on Phone 1 first. then enter the Command as AT +EGMR=1,7,"your first imei" (Put a Space between AT and +, Like AT +EGMR=1,10,"your imei") and then tap on SEND AT COMMAND it will show you that command sent,

Now press back button, RESTART your phone and Tap on Phone 2 (if you have a Dual Sim phone) and Type AT +EGMR=1,10,"second imei"and tap on send at command.

Now Just Restart you device and enjoy now Sim Card will Display the Network in the status bar.

You can see your IMEI by pressing *#06#

Second Method

if the above method is not successful with, just try this, you need a PC and the phone should be Rooted to use this method. so if your phone is not Rooted then first root that device and follow the steps.Download Mobile Uncle IMEI Write Tool for MTK devices on your PC : Use This Link

unzip it and Run the MTK IMEI exe, don+t be afraid if you see other language on this tool.

After running you will see command type window, just press Y,

now it will ask you to enter the first IMEI no, just enter here your first IMEI no, then press enter.

now enter the second IMEI and press enter and then it will save a file named IMEI.bak

please copy that file and paste it on Your phone's internal memory.

Now Download a tool called Mobile Uncle MTK Tool.apk on your Android Device and launch that tool,

Now you can see there is an option IMEI Backup Restore (MTK) Click on it.

Now, it will show the four options, if you put the IMEI.bak file on the Internal storage then just press on the third option, or you can read there on which option its showing BakUpDate: type option just click on that and thats all it will Restore Your IMEI on Mediatek Device

Source for the Second Method :Xda Developer