Chosen Solution
Hi, for some reason there is no sound on an iPhone 6 Plus that I repaired. I have switched the logic board onto one that does have sound working and it still does not work so I know for a fact it has to do with the logic board and not the speakers or components. Video does not work/YouTube due to sound to working. Inrestored the device 3 times as well. Any ever had this happen and what’s is a possible fix on the logic board?
Audio ic would be my best guess Update (08/25/2017) Here is a link to iphone 6+ audio ic replacement. But not knowing a hundred percent certain if that’s your issue or not you may want to look at zxw or schematics for that audio circuit and make sure that there’s not a filter, Cap or Another Part on that circuit that is shorted or bad before attempting to change it. https://youtu.be/V4JQUNnlEw0
