Goodbye Broken Bits
The first step to cracked tile repair is the removal of the damaged surface. Once a tile is cracked or broken, it is often pretty easy to remove. A screwdriver or stiff putty knife can normally be used to dig out whatever you can't lift out with your fingers. It's a good idea to wear gloves and safety glasses for this, as pieces will fly and they are very sharp. I have gotten a few cuts pulling out tile bits, and excess blood on your tools never makes a project go smoothly. If the tile is being stubborn, a small cold chisel can be used to break up the tile and grout. Work your way from outside in to avoid damaging more tiles and requiring further tile chip repair.