When the imei of your device is corrupted you can't make or receive calls with the device, if you dial *#06# it shows null/invalid.
I've done other tutorials on how to repair the imei of mtk devices using apps like mtk engineering, chamelephon and sn write tool. These apps are great apps but they do have their downside for example the mtk engineering app is very easy to use but will not work on some devices with android 6.0 this is frustrating.
Using chamelephon to repair imei is also easy but requires the device to be rooted.
Again SN Write Tool also have the tendency of show FAILED again and again. You might cry if you are not that strong.
Here is just another tutorial which shows how to fix null/invalid imei number on mtk devices using Miracle Box. This method is simple and does not require you to root the device.
You can just watch the video or follow the tutorial below
IMEI CHANGE IS ILLEGAL
Use this tutorial at your own risk!! 😜
Must have installed MTK VCOM Drivers properly on your PC
Download Miracle Box from here
Launch Miracle Box
Now Press Ctrl + M on your keyboard
Two new options IMEI (switched off) and IMEI (switched on) will appear
Select IMEI (switched off)
Type in the IMEI numbers in the spaces shown (IMEI number of your device is on sticker under your phone)
Click Start Button
Turn off device and connect to PC with USB
Now wait for the process to complete
When you see W IMEI1 OK: XXXXXXXXXXXXXX
That means the operation was successful
Disconnect and boot up device.
Do not get concerned if the progress bar is not upto 100% 😉