To utilize an engineering key for password removal, technicians often must use an older version of the software (e.g., V4.00 or earlier) to "clean" the radio before returning to a modern version. Modern Licensing:
If you are a standard user trying to program a Kenwood NX-300 or TK-3160: kpg-111d engineering key
Note: Exact entry sequences vary by manufacturer and firmware version. Attempting unknown sequences can trigger locks or security counters. To utilize an engineering key for password removal,
This engineering key is strictly intended for: kpg-111d engineering key