I had the funniest of problems when I tried putting a 2.5" HD from a PC into a 600 I was repairing... Ran prep tool that followed with A600HD and that worked well... though when I resetted the A600 the HD was gone. Went into HDToolbox and it saw the HD, closed it down again and the HD's would pop up.
Seem also small 2.5" can take ages to report back for duty, way past what the A600 accept, but a quick cut of pin1 fixed that... now I just have to do a reset at coldboot. :-D
