Chosen Solution
Hi: My iPhone 6 is missing a backlight filter (near FPC connector?), I do not need to remove the motherboard from the phone for the repair. I have ordered replacements (2 spare FL2024). I have a hot air rework station and I have some experience with it but not with such a tiny part in a crowded area. I can also use the soldering pencil with a sharp point. I have headgear for magnifying but it is lacking for this part size. What would be the best method for success? Best temp for the pencil and/or hot air? I have a very narrow air nozzle for the hot air. I am going to practice on a bad iPhone 5 motherboard but I would really appreciate opinions from those with this experience. Thanks!
For Typical Lead-free solder, around 220c should do the trick.
Hi @teranz For backlight filter repairs like this, I try to use the iron at about 400 - 450 Celsius so the solder melts quickly. If you are going to use the hot air rework gun, I have to recommend that you remove the board from the frame. The heat setting I use is upwards of 380 - 420 Celsius and this can cause flex cable and battery damage if the board is left inside the device. As a side note, filters can technically be replaced with a jumper or a solder short since they are technically a fuse. You may find yourself having problems getting the small filter to stay in place and this is a working alternative to getting it to stay in place.
