I found 8 Skyworks Sky5 RF chips. I labeled all of them and submit to iFixit.

There are a lot of Skyworks Sky5 RF chips that you didn’t mention (at least 5 chips!). There are two chips next to Avago chip. Another two chips are close to Qualcomm modem. There is one more on A14 motherboard. Because the picture’s resolution is not high enough, I can’t tell other RF chips on A14 motherboard. I think you guys have better chance to see more detail.