Pad C12 is the one that causes the infamous iPhone 7 Audio IC issue. You will need to jump a wire from R1103 to pad C12 in order to properly do the repair. However, I also notice a lot of what looks like random solder balls all over the place. You can also see C1926 with "extra solder" on both its ends, and L1805 all browned out.
Here at Moblie Phone Repair Workshop in Brisbane, Australia, we invest in state-of-the-art equipment allowing us to provide motherboard repair services at veAudio IC Charging IC Coil/Crystal/Diode IC CPU IC EMMC IC iPhone IC. This Big Audio IC Chip is used to control Speaker and Microphone of a iPhone 6S / 6S Plus. Certainly, there are a few components close by the Audio IC around the NAND that is underfilled, I pick away and found one loose capacitor, which isn't on the SIM1_DETECT line. . 456 63 392 59 397 451 215 136