Beomaster 4500, Firmware 2.2

Firmware programming of final version 2.2 for Bang & Olufsen Beomaster 4500. This product consists of programming the firmware, the EPROM circuit and, test in a Beomaster 6500. We may reuse erased EPROMs. The EPROM is located on the CPU board in the Beomaster behind a metal shield. We can also supply other versions on special request.

The new EPROM has a small mark on one side which must be turned in the same way as the old EPROM.

This version supports two-way remote controls.