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Repair information and guides for the iPhone 6 that was released on September 19, 2014. Model Numbers: A1549, A1586, and A1589

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Replaced cellular antenna but the signal is still bad?

Cellular signal isn't full 2 dots, sometimes 3 dots, in other iPhone 6 full. I changed all antenna and the problem is same.

How can I solve this problem? What the IC I must to change?

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Most Helpful Answer

Not enough information. What antenna did you change? Did you check all RF feed points on the case?

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5 Comments:

i change all RF points on the case

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Were there other repair history for this phone?

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No this is a first time

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i am buying refurbished apple device from china and reseller it but i have some of device the cellular signal is weak 3 signal dots and i changed all RF points in device and the problem isn't solved exist any ic is resbonsible for signal dots to solve this problem

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Anything can happen in China, the condition of the device may need thorough investigation. Maybe upload some pictures of the internals? Especially around the antenna areas?

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