: Enter your original 15-digit IMEI (found on the box or under the battery) into the IMEI.info checker to ensure the number itself is valid and not blacklisted. Advanced Rewrite Method (MediaTek Devices) :
: An online platform for IMEI checking that identifies device specifications, warranty status, and blacklist information . How to Fix "Invalid IMEI" After a Hard Reset hardresetinfo imeiinfo fix
Select the "IMEI Download" option and enter the 15 digits found on your device's physical label. : Enter your original 15-digit IMEI (found on