1- Download and Install Spreadtrum Driver on your Windows Computer.
2- Download  and extract WriteIMEI tool on your computer.

 After extracting you will be able to see the following files.

How to Change or write Spreadtrum IMEI using WriteIMEI tool
3 – Now, Open WriteIMEI.exe.
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4- Once WriteIMEI is launched, you will be able to see the following screen.
How to Change or write Spreadtrum IMEI using WriteIMEI tool
5- Now, Click on the Mode Select and select Normal Mode.
Change or write Spreadtrum IMEI using WriteIMEI tool
using WriteIMEI tool
6- Now, Click on the Set and Select the list of IMEI you want to Write (for example, if your device have single IMEI then select IMEI1 only, and remove the tick from the IMEI2 and others).
write Spreadtrum IMEI using WriteIMEI tool
Spreadtrum IMEI using WriteIMEI tool
7- Under the IMEI1 option, You will be able to see 2 options i.e Manual Input and Auto Generated IMEI. Select Manual Input (if you want to put the IMEI manually).
How to Change or write Spreadtrum IMEI using WriteIMEI
8- Now, click on Save to Continue.
9- Now, Under the Please input IMEI1 option write the 15 digit IMEI code (you can know your device IMEI by Dialing *#06# or you will find the IMEI at the back panel of your device).
How to Change or write Spreadtrum IMEI using WriteIMEI tool
10- Now, Connect your Spreadtrum device to the computer.
11- Now, Click on Write Button to begin writing IMEI process.
How to Change or write Spreadtrum IMEI using WriteIMEI tool
12- Once, IMEI Flash is completed you will be able to see green Pass Message on WriteIMEi Tool.
How to Change or write Spreadtrum IMEI using WriteIMEI tool
13- Now, restart your Device.
14- Now, Check your IMEI by Dialing *#06# (this will verify the IMEI write process is code correctly or not).👍