<p><span class="h-card" translate="no"><a href="https://mastodon.social/@whitequark" class="u-url mention">@<span>whitequark</span></a></span> I put the ROM into Ghidra, and now I cannot understand how this device could be put into download mode at all, although such a mode looks exist...<br />(BTW the PSR F50 service manual I got says a reserved MIDI port is also used for "ROM update")</p>