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Hi,
On my iPhone 6s the power of the four signals wifi, gps, bluetooth and cellular is weak.
The wifi only works with the 5ghz band, the GPS is not accurate and the bluetooth is very weak. The gsm signal is slightly weaker.
I replaced the connector at the top left, but with no results.
I do not think it is a chip problem, someone has happened and found a solution?
Thank you.
Ps Sorry for my english.
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Four all four radio functions to be problematic, it would stand to reason that the issue is on the logic board. However, it could also be housing related as it is also part of the antennas. Is your housing damaged (bent) or has it been replaced by a non-original housing?
Otherwise, I would have the logic board inspected, perhaps there is an issue in the area that contains the IC's responsible for radio functions. It could be physical damage, water or something else.
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Thanks, I do not know the story because I bought it used on ebay.
The iPhone has certainly undergone some repairs to the motherboard, because there is no coverage on the chips under the sim compartment.
The back cover may have been replaced.
Is there a single chip responsible for the radio functions?
No, pretty much all of those chips below the SIM reader are for radio functions. The fact that the shield is missing clearly shows this device was worked on. I would work with eBay for a refund as this device probably doesn't match what was sold to you.
My iPhone 6s is only a month old and the Bluetooth hasn’t worked since I bought the phone.
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