IMEI repair should only be used to restore the original IMEI to your device. Changing an IMEI to a non-original number is illegal in many countries and can violate telecommunications laws.

Before attempting the repair, ensure you have the following:

Once Android restarts, open the phone application and dial *#06# or navigate to . Your original numeric identifier will now display accurately, allowing full cellular functionality and network registration to resume normally.

Step-by-Step Guide: Lenovo TB-8504X IMEI Repair (Patched Method)

Once the flashing tools report a successful operation, complete the following validation steps:

Tap seven consecutive times until developer privileges are granted. Navigate back to Settings > Developer Options . Enable USB Debugging and OEM Unlocking . Step 2: Bypassing Patched Restrictions via Diagnostic Mode