Chosen Solution
Hi! I just finished replacing the lightning port and connector and put a new battery in an iPhone 8. I noticed while testing (before buttoning everything up) that when the home button is pressed, I get a screeching sound as opposed to haptic feedback. When I toggle the vibration switch it also does not produce haptics. I listened to some audio during testing and noticed that sound only comes from the speaker inside the receiver on top, but not from the bottom speaker. I have a feeling my use of the iFixit magnetic repair mat caused issues by laying these two parts on it (this is my first involved iPhone repair in many years) breaking internals inside. Before I order a new vibration motor and speaker, I just want to confirm my suspicions with the community. Thanks in advance! The repair otherwise went very smooth :)
i doubt putting any of your parts on a magnetic would cause parts to malfunction. that said, i experienced something similar. i replaced the charging flex on an iphone 7. when i was done, the taptic engine would go off when i adjusted volume, the volume itself would go up and down in jumps not the usual increments, the speaker output was poor. i ultimately ended up moving the motherboard and other key parts into a different iphone 7 back casing with its original charging flex. put a different motherboard, speaker and taptic into the case with the questionable charging flex and it exhibited the same symptoms. based on that i figure it was just a “bad” charging flex so i scrapped it and put in a new one, and that one worked fine. at this point, it could have been a sub-standard/defective part or something could have happened when i replaced it
Hi Nathan, I’m with @beekerc regarding the magnetic mat; I’ve used several of them for years and have never had an issue caused by parts placed on one. Given the strength of the magnetic field that has to be generated by the Taptic Engine to move a chunk of metal, the magnetism in a mat is negligible, and if the lighting connector was susceptible to magnetic fields, the Taptic Engine would have killed it long ago. First thing I’d suggest is going through and redoing all your connectors; the ones to the speaker, the Taptic Engine and the logic board, especially. With those big connectors it’s easy to have them only partially seated resulting in all kinds of inexplicable behavior. If that doesn’t work, next thing I’d try is getting a replacement lighting connector assembly from iFixit; they have a lifetime warranty on their parts and in my experience they’re very easy to work with and willing to do what it takes to make things right.
@n8finn - I’m pretty! But I’m also sure that it’s the lighting port. Where did you get the connector?