This approach should let you save more of your tiles for reuse unless the tiles are.
How to remove one wall tile.
For semi soft adhesive mastic use 120 grit sandpaper to remove it from the wall.
In order to remove wall tiles one needs several tools.
Of course that you can do this operation mechanically by using a drill machine with hammering function but if you want to remove the tiles without breaking them it is better to do it by hand.
Drill through the tile at each hole with a drill equipped.
Follow the instructions as outlined in step 1 and step 2 for the removal of a damaged tile.
Break the tile if necessary.
If you plan to remove a whole wall of tiles try tapping the edge of each one with a.
Fill drywall gouges with drywall joint compound and sand it smooth.
Try to locate a loose tile.
Chisel tiles away from the wall.
To remove thinset use a stiff putty knife and some elbow grease to scrape it from the wall.
Take your nail set and punch a series of holes in an x pattern along the surface of the tile.