Okay, so I was just using my Prophet 08, which has been used very sparingly and still has the plastic covering the ebony keys. Everything was working fine, and then Voice 1 & 3 on Oscillator 2 stopped working. They synth was using Main 2.3 OS and Voice 1.5.
I rebooted the synth, no luck. I attempted to calibrate the synth, and it kept freezing at a point, wouldn't complete the calibration fully. I then attempted to reload the Voice OS 1.5, it will run through complete, but then when I check the version history the synth says Main is 2.3 and Voice is 0.0, and now Voice 1 & 2 are not firing on both Oscillators.
PLEASE HELP!
PS Where can I find previous OS builds?