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Old 07-16-2019, 08:09   #1 (permalink)
boneksl
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Join Date: Dec 2004
Age: 32
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iphone 7 recurring audio error -need advice

I have a problem with iphone 7 phones that come to me for a typical audio bug.
After de-soldering the system, clean connections, apply new balls to the bga chip. I correct faulty connections with a small copper wire, for example from a speaker from conversations. Connections secure the solder with a mask. Unfortunately, many phones are still coming back with the same fault. Do you have any advice or do you know what I can do wrong?
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