This content is for educational purposes only. IMEI repair laws vary by country (e.g., illegal in the US, UK, and many EU nations without proper authorization). Modifying an IMEI can be a criminal offense. This guide is intended for authorized service centers or developers repairing their own legally owned devices with a matching, original IMEI.
Newer SPD phones (Android 11+) restrict the Engineer Mode from writing to the NVRAM without elevated permissions. You will see ERROR after hitting send. spd android imei repair code
Since there is no "magic code" to rewrite the IMEI, you must use software that communicates with the radio (modem) partition. This content is for educational purposes only
B. Use Shortcut Master → Engineer Mode (no PC, requires app) This guide is intended for authorized service centers
Power off the phone and connect it via USB. You may need to hold a "Boot Key" (usually Volume Down or Up) while connecting.