Working Method | How to Write IMEI and SN Number to a Huawei Modem or MiFi - Raphblog

Invalid IMEI on a huawei modem is most likely as a result of tampering with the NVM, those who unlock their devices using bootshot method might notice that the device no longer has a valid IMEI or SN number. The device might still work properly even with this invalid BUT it would be rather safe to have everything in perfect condition. This guide shows how to write back IMEI and SN number.

Read More: Working Method | How to Write IMEI and SN Number to a Huawei Modem or MiFi

Things You Will Need to Write IMEI and SN Number to a Huawei Modem or MiFi

Download and install HxD Editor on your PC @ https://hovatek.com/redirect.php?link=ht.../HxD.shtml
Download DC-unlocker @ https://hovatek.com/redirect.php?link=ht...ocker.com/
Huawei modem or MiFi with corrupted IMEI and SN number
USB cord

The guide assumes that you already installed the necessary drivers before now. If you haven't done so then search online for, download and install the necessary drivers for your device.

How to Write IMEI and SN Number to a Huawei Modem or MiFi

Disconnect the device and insert a working sim of your choice (you'll get an error message if you try writing IMEI without a SIM card inside the device)
Power on the device and connect to the PC using a USB cord
Now run DC-unlocker
Select Huawei modems > Use auto detect > Click the search button

The device should be detected and all information displayed

Now type the code below and hit Enter

Code:

AT^CIMEI="*****"

Note: where ***** is the 15 digit original IMEI gotten from the carton of your device.

You should get "OK" meaning the IMEI was written successfully

To write SN number, Launch HxD editor > press "control + N" to open a new file

Type the original serial number gotten from the carton of your device into the right hand side and the hex value should be displayed in the middle

Now type the code below into DC-unlocker and hit Enter

Code:

AT^NVWR=6,16,** ** ** ** ** ** ** ** ** ** ** ** ** ** ** **

Note: where ** ** ** ... is the hex value gotten from HxD editor

You should get "OK" meaning the SN number was written successfully

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Credit: Hovatek