Serial Number Converter

This tool helps converting User Serial Numbers to Service Serial Numbers, and vice-versa, of HMP400 and HMP400W players.

User Serial Number

It is composed of 8 alphanumeric characters, starting with X2 for HMP400 and X3 for HMP400W.

Service Serial Number

It is composed of 12 hexadecimal characters, with the following format: 001d5022xxxx, which is the player's MAC address without the colon separator.


Batch conversion

To convert multiple serial numbers, load a CSV or TXT file containing a user/service serial number per line. For service SN to user SN encoding, either select the player model above, or add a second column with the model within the CSV file.