I’m using an original iPhone. Earlier my brother was doing some electronic drums and I had an 1/8 in jack to a 1/4 in jack going into my guitar amp. All of the sounds were working perfectly and I came up with some sweet shit. Now I can only get a mic signal for some reason going straight direct in into my Digi 003. But the effects, the pads and the samples aren’t working. Any suggestions.
I’ve had similar problems with the VCO and the Sampler outputs. Often they don’t want to work (i.e., make any sound whatsoever), so I end up having to restart my phone. That seems to clear up the problem - if only temporarily. 
We need an update…NOW!
hi, i have the same issue, no sound at all , and restarting the phone doesn’t solve the problem, i used it for an hour then had a phone call and since then, no sound and can’t get it back
also, i updated the ios of the phone to 4.2 yesterday.(maybe with 4.2 restarting the phone doesn’t solve the pb???)
help please!!!
problem solved!! but only with a complete restauration of the phone’s software , that was the only way, turning the phone on and off didn’t solved that issue at all for me, so hope it’s not gonna happen often…(iOS 4.2.1)