8-bit acorn hardware • Re: General advice requested

I've just been reading this account of a very similar repair and noticed that he tried reflowing the solder on the dodgy chip first of all. So was that a much simpler possibility I could have tried? I note his fault seems to be an inverted bit rather than a stuck bit though, so maybe that indicates some significant difference in this case. https://www.paulerrington.co.uk/blog/20 ... ation.html…