In the configuration menu, ensure that the parameters match your device layout. If the phone uses two SIM cards, check the boxes for both and IMEI 2 .

Optional, but recommended to ensure secondary diagnostic interfaces are recognized. 3. Device Configurations

Losing or corrupting the International Mobile Equipment Identity (IMEI) on a Spreadtrum/UNISOC device can disrupt mobile operations. Devices utilizing the legacy SC7715 chipset often experience invalid IMEI errors following firmware updates, improper flashing, or factory resets.

What (e.g., Windows 10, Windows 11) are you running on your computer?

Manually type your device's original 15-digit into the corresponding field. Input IMEI 2 if applicable.

Changing an IMEI number to a different one (other than the original assigned to the hardware) is illegal in many countries as it can be used to bypass blacklists or hide stolen property.

Once the process shows "Pass," restart the device and dial *#06# to verify the restoration. Critical Considerations

The Spreadtrum SC7715 is a legacy, budget-friendly chipset found in older 3G smartphones and feature phones. The International Mobile Equipment Identity (IMEI) is a unique 15-digit number that identifies your device on a cellular network.