Select your specific smartphone brand and CPU model from the dropdown architecture list. Navigate to the tab.

Connecting the phone in a specific state. USB Drivers: Properly installed SPD drivers. 2. Requirements for SPD IMEI Repair

Power off the phone and connect it via USB. You may need to hold a "Boot Key" (usually Volume Down or Up) while connecting.

Go back, select "Phone 2," and enter AT+EGMR=1,10,"SECOND_IMEI" .

Modern Android security patches often disable dialer-based IMEI writing to prevent unauthorized modifications. If the codes above open a menu but do not allow you to save the numbers, or if they do not open any menu at all, you must use specialized PC-based utilities. Tool 1: SPD Upgrade Tool & Research Download