Surface Pro screen popping out of the chassis

None of the ABOVE!!! It means the battery is expanding and it is dangerous. Contact Microsoft… they are aware of this issue and will replace it.

"I suggest putting it in a hot car until its really hot, like you can barely pick it up. then slide a very thin piece of plastic around the edges and take the whole screen off. (I did my 1st gen surface pro this way. ) Refer to the disassembly guide or tear-down to make sure you don't damage the cables. (for the first gen, separate the sides and top with the plastic card (you want something thinner than a credit card actually, like perhaps a piece of a milk jug or water bottle) Then til the screen up along the bottom edge. Do it SLOWLY and a little at a time and the glue along the lower edge will separate. Also, once the screen is free, let the laptop cool COMPLETELY before undoing the plastic clips that hold the FPC cables down.

When hot its easier to break them. CAREFULLY clean off the old adhesive. Its a job that will take a few hours. Don't rush it or you will damage something. Use some 3M 9448A black double coated tape to put the screen back down. This will result in a much more professional and permanent repair than gobbing liquid glue in the gap and smooshing it down. While your in there, you will likely want to replace the solid state drive. A 250GB samsung msata (for first and second gen units) or m.2 (for 3rd and 4th gen units) can be had for around 80 dollars. A 450GB drive can be had for around 130-150 these days. Since your in there, you might as well do the upgrade since once you put it back together there is a good risk of damaging it if you take it apart again.

Remember though, ANY time you take apart things like these tablets, there is a risk of something going catastrophically wrong. If you have deep scratches on your screen for example, don't even try it, or it WILL break. (right at the scratch) Another problem is the fpc cables that connect the screen. The battery has to be connected when you assemble and disassemble it. As such, if one of the FPC cables is crooked going in or out of its socket, it will short out and you will let the magic smoke out and that will be the end of your tablet."

This is a photo of my Surface with the screen separating from the frame. Microsoft said it was not under warranty and “We recommend that you discontinue use of the faulty device and purchase a replacement Surface .” I believe the reason they recommend discontinue use is the possible fire hazard. Microsoft site includes a screen separation in their list of problems. They are certainly aware of the defect but are not willing to correct it.

"I use B7000 liquid glue. Works well.

Basically put some glue under the glass, use tape to secure it into place and apply pressure.

Glue will take some time to set. Minimum 30 minutes.

Easy to rub off the excess glue too."

[assuming your battery is also bulging as was mentioned:] try making an appointment and walking into a microsoft store with it and talking to an expert. We did this and they replaced the unit (although it was out of warranty) because it’s a safety issue (their words). It was actually great service!

"Sadly I have the same screen issue. This is it, I have reached the end of the line with my Surface Pro 4, or any other surface device. I'm not buying surface ever again. Beautiful device and specs are quite decent, did well by me for 2 years. Then the microsoft type cover stopped working, and after much hassle I ended buying another brand's bluetooth keyboard that is working until today. Then the battery started to act funny, wouldn't hold a charge, would last less than an hour and would deplete even after complete shutdown. After a few updates it got better, though battery performance never went back to optimal. Now this screen issue just showed up, which I thought would be fixable in some way, but it seems its the final death sentence to my device.

This is supposed to be a premium device"