I would also like to point out that both the front and back glass are extremely brittle. If you broke your glass, because the phone landed on its side, then check for spurs. The smallest protrusion will shatter the glass while applying pressure to seal the adhesive application. I had the tiniest of a protrusion, and the back glass exploded. Thankfully, those are cheap.
I just want to add that if you only need to replace the glass, this is not the guide for you, and the difficulty rating is a 10 of 10. What I would do to replace just the front glass, is to avoid all these steps, and remove the glass from the front. Do not attempt to remove the AMOLED screen, it will shatter in the process of removing it. You will notice in this video, the screen shatters in the bottom left of the phone, behind the glass.
The other issue is that the glass is laminated to a filter, which is backwards from many screens, where the LCD panels are laminated to the filter, and the screen floats. When you buy a replacement glass, you will need one that has the laminated filter attached, or you will need to figure out a way to separate the two pieces. (I could not).
I did this repair. A heat gun isn’t really hot enough to remove the screen without destroying it. A hair drying isn’t going to touch the glue.
Easy way to remove bezel, insert the longest screws a quarter turn into the two top most edge screw slots. Use the screws as anchors to press against as you pull the bezel toward you. Then a simple twist to remove the screws, and the rest of the bezel comes off easy.
Contrary to the pictures, to lift the front bezel off, start at top of the computer screen lifting up while apply a little bit of pressure to the foam in the upper corners of the screen. This will give you the leverage needed to get the bezel to lift up. Be careful to not pull to fast, as the camera cable is still attached.
I do a lot of hardware repairs and hacks. This manual made the process very easy. The whole process took about 30 minutes. I formatted my new drive USB cable before starting so when I hooted up the mini the new drive was mounted and ready to go.
Hint: if the power supply cables are in your way, double check the power supply and use your spudger to tuck them behind the new drive.
Hint 2: when installing the original drive, slide the drive over the new one then hold the Mac right side up as you guide the drive back into its holes. Then before letting the drive rest double check the drive cables are fully connected. Mine kept popping out until I got the old HD inserted just right.