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Samsung's flagship phone-with-stylus and the successor to the Note8, released August 2018. Features a 6.4" display and up to 512 GB of onboard storage.

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Back glass adhesive coming up

So I bought the back glass adhesive kit for this model phone after my original seal started popping up around the phone. I cleaned and peeled the old adhesive off the phone and black glass with isopropyl alcohol and then applied the adhesive and set on a heating mat at about 150°F for 2-3 minutes and then clamped the phone together with phone clamps. I let it stay like that for about 30 hours and I’ve had the clamps off for about 24 hours now and the adhesive started to pop up again. Any tips how to fix this?

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Since the back is glass rather than plastic, I assume the back isn't suffering from being deformed. I'm guessing you've also verified that the frame isn't bent either (if not, check that for sure), so what else would cause the rear to come off?

I've never had a problem with properly applied adhesives, and it sounds like you did it all correctly. The most likely cause for a screen or rear cover coming off is expansion caused by a swollen battery; obviously you'll want to check that if you haven't already.

So outside of that, I'd say the next thing is to make sure you're using a quality adhesive like the one sold here on iFixit.

Galaxy Note9 Rear Cover Adhesive

If you're already using iFixit adhesive, you might contact the iFixit store people regarding your experience; firstly they will almost certainly get you a replacement, and second, they will be interested in knowing if the parts they're selling aren't working as they should.

Galaxy Note9 Rear Cover Adhesive Image

Product

Galaxy Note9 Rear Cover Adhesive

$5.99

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I’ve checked the frame and the frame isn’t bent. When I was looking at the phone its battery didn’t seem swollen, I could double check if there’s any other tips I don’t know for telling if it’s swollen or not. It didn’t feel squishy and the phone’s battery can last quite awhile. I ran the Samsung member diagnostics test on the battery and it said the battery has good health as well. Only thing that makes me think it might be is since I’ve had the phone since it came out and the phones back started popping off on it’s own originally.

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