I ran into a problem after replacing the microdrive in a mini I bought from eBay with CF memory. After restoring the unit using itunes it required me to hook it up to a wall charger to complete the restore which I did. But when the ipod restarted it went to the language screen and it showed that the unit was locked. No matter what I try I cannot get it to unlock. The toggle seems to work freely. What is really mind boggling is I tested the unit with a small capacity CF card before I bought the new one and I did not have this problem. Any suggestions?