You may need to pry it off in two or three places if firmly attached.
How to remove wall tile from drywall.
Hold the ice against the tile for a minute or two then try prying.
However it is unlikely that removing the adhesive will leave the drywall looking like new.
Give it a try by inserting a chisel putty knife or other flat tool in between the tile and the wall almost parallel to the wall.
The use of the right tools and materials combined with some elbow grease will remove most tile adhesives from drywall.
Score the 1st tile you plan on starting with using the grout cutter.
For semi soft adhesive mastic use 120 grit sandpaper to remove it from the wall.
The extreme cold may make the glue brittle and cause the tile to come off easily.
To remove thinset use a stiff putty knife and some elbow grease to scrape it from the wall.
This video demonstrates an easy way to remove glued on tile while keeping drywall damage to a minimum.
The method used to attach the tiles to the wall affects the way the tiles come off.
At the edge of the tile chip away the grout with the.
Fold the towel around the dry ice and twist the ends to give you a handle.
If the tile runs wall to wall proceed to step 2 to create your starting point.
This will further loosen the tile reducing the chances of you damaging the drywall behind it when you start removing the tile from the wall.
Then make and x motion within the tile with the tile cutter.
If there is an outside edge to the tile you can start there.
Tap the handle of the tool with a hammer until the tile comes away from the wall.
Run the gout cutter around the tile edges in the grout area.
Put on protective gloves and place a piece of dry ice in a towel.
Tiles installed with thinset or another tile adhesive often require more work to remove them.