Thanks to an email I received from ‘Mr Walkman’ my NW-A55 digital music player now thinks it’s an £8000 music player from Australia.
If you have a digital audio Sony Walkman which has missing features or compromised functionality - it may be possible to do something about it.
LINKS:
Destination & Sound Pressure Tool https://www.rockbox.org/wiki/SonyNWDestTool
Mr Walkman's Custom Firmwares:
https://www.mrwalkman.ml
(Note these Firmwares are BEER WARE - that means it's only right to give a donation for a beer if you use them).