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Fix Invalid IMEI / Unknown Baseband Version: Android MTK

This article explained detailed information on How to fix Invalid Imei / Unknown Baseband version on MTK devices, how easy is this check out the below instructions and fix out your invalid / unknown IMEI in seconds.

Read: How To Change MTK Phones IMEI number


The method below to fix your Android invalid imei works for both rooted and unrooted device.

Note: You must get a working Imei Number (To get this open your phone cover and find SIM 1 and SIM 2 Imei Number), Your Android Device must be an MTK based, If you are Okay with the above requirements you can continue with the steps below

  • Download Mobile Uncle Tools on your MTK Android phone.
  • Install and open the app then click on Engineer Mode >> Engineer (MTK)
  • Navigate to CDS Information and then find Radio Information and click.
  • Now select either Sim 1, or Sim 2, which ever you want the imei to be fixed.
  • For SIM Type the below command
  • Replace your copied imei number with the red text above.
  • For SIM 1 Type the below command
  • Replace your copied imei number with the red text above.
  • The Only difference in the command is SIM 1 has 1,7, and SIM 2 1,10,
  • After you are done with that Click Send At Command then a pop up message will be displayed showing Command Is Msent
  • Switch off your device or put Device in airplane mode, switch it ON back and dial *#06# to confirm your IMEI change.

Method 2.

The above method might not work well for Android 5.1 and Marshmallow lollipop device. Follow the below steps to have authority over this

Note: This inclined that your phone must be rooted.

  • Download Chamelephon for Android on Playstore
  • Install and launch the app then grant it Root Access
  • You will notice a division of Sim 1 and Sim 2, click edit on whichever you wanna change
  • Paste your Copied IMEI number there and click Apply
  • Switch off your phone for some seconds and switch On then dial *#06# to confirm imei change.

invalid imei

Fix Unknown IMEI And Baseband Version.



MTK based device

MTK droid tools

Imei number

USB ADB drivers

NVRAM backup Gotten from the same model of the device.


  • Download and Extract MTK droid tools on your PC
  • Download, Install and Launch USB ADB drivers for Android
  • Navigate to your phone settings and find developer options click on this and enable USB Debugging
  • Connect your phone to your pc via a working USB cable
  • Make sure the MTK droid tool is launched on your PC, It will detect your android device automatically and display the information.
  • Click on the ROOT button
  • Tap on IMEI / NVRAM

unknown baseband version

  • Hit on the Restore Button and Open the NVRAM backup
  • An option to change IMEI will show up, Input the IMEI you have
  • Then Click Replace IMEI and Switch Off / Put your phone in Airplane mode, Reboot and confirm your new IMEI’s

That is it about How to fix Invalid IMEI number / Unknown Baseband Version, If you have any question kindly comment below.

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Updated: October 8, 2018 — 10:00 pm

1 Comment

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  1. how i get nvram file when i format all data of my mobile by mistake

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