Kodak memory card and a canon A540 digital camera you have flipped the switch on all 4 cards many times and it is still saying it is locked how do you unlock them they were working perfectly until you?
The first thing to check is the locking switch on the side of the card, making sure it is in the upward (toward the contacts) unlocked position. If you've already tried this, …or if the switch itself has broken off, there are several additional troubleshooting items for the problems of "memory card locked" or "memory card error". Please see the below Related Link "Simple Fix for Memory Card Locked / Error". (MORE)