Maybe you have a PDA. Maybe it is a Palm. Maybe it is a Palm Tungsten C. Maybe you want to replace the batteries. Maybe.For sure that’s what I want to do. The first obstacle to overcome is to open that darn thing. Once you find the Torx 6 screwdriver you’ll find that the back cover is quite still attached despite the fact that you have unscrewed all the four screws. After googling around I found these pictures where you can see there are two small clips. Just use your nails and force the cover so it can unplug. Next step is to remove the board to uncover the batteries.