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01-13-2022, 18:43 | #1 (permalink) |
Junior Member Join Date: Nov 2021 Location: Broooklyn USA
Posts: 4
Member: 3001941 Status: Offline Thanks Meter: 0 | iPhone 11 Screen Side Touch IC transfer Qianli and jcid MtSN transfers will restore true tone but since 15.0 the message will appear on an aftermarket screen. The only remaining option seems to be to transfer the chip that is on the touch cable of the screen from the original to an aftermarket (similar to a prox replacement while maintaining faceID). I am however having some trouble with this one and was wondering if anyone had any tips? My specific problems are:
Surprisingly, the crappy little heat shield I slapped together seems to be doing the trick for protecting the LCD from heat damage, so no problems with using heat. So far on my 5 or so attempts, I've only been able to restore partial touch on the new screen, and this is a much harder fpcb bga transfer than touch ic given I can't visually check for bridged pads. BTW I have seen that rewa video about using an IC grinder, and after using some mini rotary tools, it feels like such an incredibly impractical solution, also seems more difficult than just heating it off. Any advice would definitely be appreciated, and I'll give updates if I figure out anything that would help others with this kind of repair. I'm gonna try to repaint over any of the exposed coper with a UV activated insulator, buuuuut I'm not super hopeful considering it's a 6x18 grid (at least on the Pro Max's I've been trying to develop this repair with). |
01-13-2022, 21:57 | #3 (permalink) |
Junior Member Join Date: Nov 2021 Location: Broooklyn USA
Posts: 4
Member: 3001941 Status: Offline Thanks Meter: 0 | UV glue seems to have worked decently, but the heat shield was too thick, causing a slight bend in the flex and thus a section of pads that did not connect. Unfortunately in trying to fix that I fubared the screen so idk if it worked well on pads in the middle of the chip. Also, just got the correct stencil in, QianLi x/8/8p one has one that works perfectly for this, and saves a LOT of hassle. |
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