Open the Sc7715 Imei Tool (typically WriteIMEI.exe ).
Check your PC's Device Manager for the active COM port (e.g., COM63) and select it within the tool's "Port" tab.
While optimized for SC7715, it often supports related chipsets like SC7731 and SC9832.
A powerful tool for SPD chipsets that uses a "Write IMEI" button under the SPD tab to fix corrupted identifiers.