Sharp PC-G850VS Reflashing?

[Zaphod]

(09-22-2018 02:04 PM)toml_12953 Wrote:  I find it strange that Sharp moved ROM to Flash but didn't put in any way to flash the chip in place.

But there is !, all the address lines (and bank select's), and data lines are available on the 40p system connector.

OK, it will need some software and hardware to drive it..... but it's there.

Albeit they probably flashed the ROMs en-masse prior to fitting , but the ability to re-flash after build is still there.
I'm still struggling finding a 40way edge connector that will accept a thin 1mm-ish PCB, so if I gonna read/write I'll probably tack in flying leads around the ROM (whilst in place)