Elias put the phone into "Diagnostic Mode" using a secret string of dialer codes. Clack-clack. The Windows "device connected" sound echoed in the quiet room. COM3: Qualcomm HS-USB Android Diagnostics 901D.
: Targeted at various Snapdragon-based devices, including certain models from Xiaomi, Oppo, and Realme. Basic Usage Guide To use this tool, you generally need to have Qualcomm USB drivers installed on your PC. qualcomm-smartphone-write-imei-tool-v1.01.zip