Advanced versions of the tool support repairing IMEIs for both SIM slots on dual-SIM devices.
: For the new IMEI to take effect, the EFS partition (where the IMEI is stored) must often be wiped using commands like adb shell dd before restoring the rebuilt QCN. Legal and Ethical Considerations qualcomm imei rebuilder tool
I won’t link directly (to avoid promoting misuse), but you can find legitimate versions inside: Advanced versions of the tool support repairing IMEIs
def luhn_checksum(imei: str) -> int: """Calculate Luhn checksum for a 14‑digit base IMEI.""" total = 0 for i, digit in enumerate(reversed(imei)): n = int(digit) if i % 2 == 0: # even position from the right (0‑based) n *= 2 if n > 9: n -= 9 total += n return (10 - (total % 10)) % 10 Critical Considerations
: Use QFIL or QPST to write the modified file back to the phone's non-volatile (NV) memory. Critical Considerations