Originally Posted by glennj
I played with a friend's Droid4, because of the keyboard, but I got the battery door partially off checking out the SD card slot, and it could not be put back on tight until we found a Verizon store that had a special tool.
It's not exactly a "special tool". It ships with the phone, BTW. The trick to removing the back door is to use that tool or anything that has a pin about the same size to depress the detent at the top of the case, allowing the door to slide right off. Same thing to put it back.