2014년 9월 19일에 출시된 이 4.7” 스크린 iPhone은 iPhone 6 Plus의 작은 버전입니다. 모델 번호 A1549, A1586 및 A1589로 식별됩니다.

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Where is the cellular antenna located on the logic board/ motherboard

I had my phone taken part but I don't know which one is the cellular antenna? My phone keep saying no service or searching. Everything else work great jut can't get cellular connection.

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Interestingly enough. Last night I dove into the the phone and and took off the logic board and smack and tapped it I also kept it unplugged from the batter for like 1 hour. I got everything put together and turned on the phone and everything work. Network is working fine. Only work worked for several hours though. did the same process but onlyleft the battery unplugged from the logic board all night and again the network come back on and it working. Why would this ? I would really like to know which one is the RF CHIP SWITHC for the antenna maybe that could be the main problem. I'm sure it's under the shield's.

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The antenna is the top and bottom part of the case, it is not on the board.

Since the phone has 2 cellular antennas, it is not possible for them to fail together at the same time. You should check for the logic board chips, not antennas.

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Thank You. Would you happen know Which one is the antenna switch or rf antenna chip on the logic board ?

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I do have the schematics, however no any thoughts on diagnosis.

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The cellular antenna is plugged in from the charging port dock assembly. Where it is plugged in is located right next to the battery connector on the logic board which is the bottom half of the logic board.

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I want to thank everyone for the good response, they did help. I was able to get my iPhone working. What I did was use a hair dryer and heated up the logic board for about 10-15 minute. Since yesterday at 630pm and now, my iPhone is picking the network and has not had any issues. I'm really hoping this is a perminant fix but i don't think it will be. We will have to wait and see.

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