Chosen Solution
I replaced my back panel several weeks back with a kit purchased from ifixit. Followed all directions from the walk through and general steps from multiple other sites . Within 24 hours the sides and edges are starting to come up and within a week the whole back panel wants to come off completely. Each time I removed the adhesive and used the leftover from the supplied adhesive provided in the kit to re-apply. Each time, same thing. I tried this 3 sperate times… I even tried heating the phone and adhesive up before and during applying it. I also used clamps and left them for 12+ hours to insure a seal. I feel the adhesive is bad but want your thoughts before I reach out to support.
You must use little of b8000 in the corners just a little to see if there is a difference the problem is if you use too much of the glue may be difficult to open the phone other time but just a little because the glue is very powerful