You can usually find 1 that lifts away from what is underneath it. Here is a quick video on yet another way on how to remove glass screen protector.

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How to remove tempered glass screen protector. Technical mh 79145 views. This helps loosen up the adhesive. Carefully slide the sharp edge of a razor blade underneath one of the corners on your screen protector. Do not overdo this part. There are a few ways to remove your busted tempered glass screen protector and the one you use will depend on just how well attached the protector is to your screen. How to remove glass protector easily from any iphone ipad or ipod touch full guide tutorial duration.
Start from one corner. Clean the screen protector and phone glass with the alcohol screen wipes. Tip before you start use a hair dryer on the basics of low speed on your screen for about 15 seconds. Keep the blade horizontal so it doesnt dig into your screen and scratch it. Remove the tempered glass screen protector. Try all the corners.
Use a hairdryer on your screen for about 15 seconds. This should slightly heat up and loosen the adhesive on the screen protector. Do not overdo this part. Before you start use a hair dryer on low on your screen for about 15 seconds. If none of them come up heat. This should slightly heat up and loosen the adhesive on the screen protector.
Remove the dust from the screen protector and. Lift one corner of your screen protector with a razor blade to remove it. As you can see you can use many household items to do it. Start on the top right corner of your iphone and use your fingernail carefully or the toothpick to carefully lift the screen protector glass away from the screen. Lift the screen protector up from each corner with your fingernail. If the glass is cracked near 1 of the corners choose a different corner to prevent if from breaking into many smaller.
You only have to lift the protector off away from the screen just enough to slide a card underneath. Once you lift the corner the screen protector will slowly lift off of your device.