Hi to all! I recently bought a Mobile Keys 25 MIDI Keyboard. When it first came out of the box I connected it to my iPhone 4 (iOS 7.1) and opened Alchemy Mobile Synth and it played fine. After that I installed MIDI Memo app to my phone and automatically this changed Mobile Keys' firmware. After that it doesn't work. I keep having this message "this equipment is not compatible with this phone" or something like that. I contacted line 6 support & the guy I spoke with suggested that I should format my phone (re-install my iOS) and that should fix my problem. I did that but nothing changed. How can I make my keyboard work with my phone? Please help! Nikolas..