Analogue-sequencer

> --- In analogue-sequencer@yahoogroups.com, "turbotron69" 
> <turbotron69@...> wrote:
> > 
> > I tried to install an older OS and seems that unit can´t 
> delete some of it´s memory and 
> > can´t load all data..just the half..
> > 
> > Now it shows  CHK FAIL =  424A
> > 
> > Help please!
> > 
> > Hans
> 
> Lst try with bootlaoder and now shows  CHK FAIL = 968D

How are you attempting the update ? Just with a MIDI file playback/sysex
dump, or using the P3 Tools app ?

It could either be a problem with the MIDI connection or block timing, or it
could be a problem with the CPU - I've seen one other CPU develop a bad
block in flash. Using P3 Tools woudl show if it is the same block that is
failing to write each time, which would suggest a CPU problem rather than a
MIDI issue.

Best regards,
Colin Fraser
Sequentix Music Systems Ltd
http://www.sequentix.com