When your Mediatek (MTK) Smartwatch's IMEI is null, it might not be able to detect your SIM card's network or install OTA updates. If you encounter Null IMEI on your Mediatek (MTK) Smartwatch then one of these methods should help you regain IMEI.
What causes null IMEI
This is as a result of the NV getting corrupted or wiped after flashing another (custom) rom. If the Smartwatch also has an Unknown Baseband Version then you'll need to first flash the firmware in order to regain Baseband before fixing Null IMEI.
How to fix MTK Smartwatch null IMEI
Follow the steps below to regain IMEI on your Mediatek Smartwatch