Things You'll Need
Instructions
Look at how the sticker is placed on the PS3, noticing exactly how it rests on the console. Some warranty stickers, for example, are at an angle while on the device. Knowing this information allows you to eventually replace the sticker in its exact original location without anybody noticing you ever moved it.
Plug in a hair dryer. Turn it on to a "medium-high" setting. Wait a few minutes so the dryer heats up.
Place the dryer's nozzle a few inches away from one corner of the warranty sticker. The heat slowly eliminates the adhesive from the sticker. Move the nozzle slightly back and forth over the sticker's corner until the corner lifts up off the PS3 console.
Hold with your index finger and thumb the corner of the sticker you lifted off the PS3. Place the nozzle of the hair dryer an inch or two away from the lifted part of the sticker. Wait until you notice roughly half of sticker lifted up off the console's surface.
Place the nozzle of the hair dryer near one of the other two corners of the sticker still attached to the PS3. Slowly pull the corner of the sticker off until the entire sticker comes away safely from the device.