Might also check that none of the solder joints have gone bad. The board might start out fine but as the solder oxidizes over time a badly soldered joint could fail.
Re-programming may resolve the problem but if there is a bad joint it will just happen again or you may not be able to reprogram the device. Worth a close inspection to make sure especially with hand assembled part. Could also try this REX in another machine see if it behaves the same way. On 29/6/18, 8:20 AM, "M100 on behalf of Jim Anderson" <m100-boun...@lists.bitchin100.com on behalf of jim.ander...@kpu.ca> wrote: >> -----Original Message----- >> >> So, on powerup, the 100 loads directly to REXMGR w/o it being invoked? > >Exactly. > >> When you get back to main, does CALL 63012 do anything? > >It installs REXMGR on the menu, as you'd expect. Launching REXMGR gets >you stuck back at the same screen again, though. > >> Did you make sure to remove the flux after soldering? The flash chip >> is especially sensitive to excess flux residue (in my experience). > >I don't think I did. I used a flux pen and a barely-visible amount of >flux when I built it so I don't know if there's really anything there to >remove. I'd have to check. > >This issue can most likely be resolved by re-loading the REX software, >but I'm just hoping for an alternative fix that might keep the data >intact - my son is very concerned about losing his stuff (although he was >only gone to his mom's house for two days with it so I can't imagine he's >lost much - there was a program he was working on to play a new song he's >been composing). > > > > > > > > jim
