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Everything you need to repair your iPhone yourself with free repair guides, and quality replacement parts and tools! From the newest iPhone 16 lineup, all the way back to the original iPhone 2G released in 2007, iFixit has free repair guides and disassembly information for every single iPhone.

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screen case seal heat pressure advice

i'm talking about the pre-cut frame seals on the blue plastic, however, if there is advice that can be equally applied to tesa tape, it's welcome too.

i've read that after the screen is mated to the case it's advisable to use heat, or pressure or both to help the adhesive set.

for heat, there are heat guns, microwaveable bean/rice bags, heat tables, etc.

for pressure, there's heavy books, wood/C clamps or phone specific edge clamps.

my question is what is your recommendation for using heat and/or pressure to make the adhesive set better?

i don't have a heat table, but i do have a heat gun and a laser/infrared thermometer so i can't really dial in a temperature, but i can heat the phone and read surface temperatures. most heating advice is "until it's just too hot to touch" and i'd like something more quantifiable than that.

what temperature to you heat the phone to?

once heated, how long do you apply weight/pressure to the seal?

Thanks

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I've had pretty good luck using both heat and pressure.

For the heat I basically do it the same as I would for opening the phone; a minute or two with an iOpener, or else get it nice and toasty with a hair dryer. I don't use a heat gun any more, not since I destroyed a Samsung LCD by getting it too hot.

Once the adhesive is heated, I lay it face down and set an old motorcycle battery on top and leave it there overnight.

Obviously there are any number of variations on this possible like using screen clamps, etc., but you get the idea - soften the adhesive then put weight/pressure on it to seal it as it cools.

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Thanks Jerry.

Always appreciate your input.

now if i could just quantify the temperature, i can make the heat gun as consistent and repeatable as a heat table.

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Please don’t use Tessa tape! Use the correct tapes for your phone.

Tessa tape needs to be trimmed to correctly fit and as you need fit pieces it won’t be water proof like the original die-cut tape.

Lastly, it’s both thicker as well as much stronger! Making future repairs much harder.

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@danj

duly noted. however, i have used tesa tape in testing on some of my keeper phones that needed work. i've used tesa by itself (yes, there were very small gaps where the frame curves) and in conjunction with the tops/bottoms of the pre-cut with the tesa on the sides. with the 1mm width, i only need to trim the length. also, i never considered iphones as "waterproof" to begin with, so i never really expected it to be maintained after repair, even with the pre-cut seals.

per the original question - when you make repairs, do you use heat (if so, what temperature) or pressure (if so, for how long) or both, when you put the phones back together?

Thanks

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@beekerc - My experience is with iPads and iMacs. Getting them opened up after someone used Tessa tape was always a bear, sometimes breaking the screen in the process. I’ve always used a variable heat heat gun. As I don’t want to cook the parts, just enough to soften the adhesive.

With iMacs it’s harder! As the tapes they use are designed to be split! Unlike Tessa. So the special cutter wheel we use can’t get through so you end up using a knife which if your not careful can damage the parts just behind!

We’ve had people here cut the ribbon cables from the LCD panel or pry chipping the cover glass part or punch a hole into the LCD along its edge. Heat only goes so far ☹️

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@danj

i'm just a hobbyist focusing on iphones, but the ipad/imac info is helpful.

Cheers

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