Select “Engineer mode.” Tap “Engineer mode (MTK).” Navigate to connectivity tab > CDS information > radio information > Phone 1
At the top, you’ll see the AT+. Beside the AT+, type the following command:
Within double quotes, type your IMEI number. Press “SEND AT COMMAND” button. You’ll see a message like this “AT command is mSent.”
Now, reboot the phone.
You’ll see the first sim is working. If you have the dual sim mobile, you need to use the same procedure for the second sim.
Go to “Phone 2.” Beside the AT+, type the following command in the input field:
Remember, you need to use the second IMEI number in the input field and press “SEND AT COMMAND” button.
After you were done, reboot the device.
That’s it. All done.