iPhone SE Battery
I broke off the right-most one (closest to the microphone) and after reassembly my signal strength was poor and dropped easily. I replaced the antenna/speaker unit with one from a 4s (the cable was a touch longer; but, solved with some bending) and made sure to really clean the contacts (and not break any)... long story short, intact fingers and cleaning has resulted in better signal strength than prior to the repair! go figure!
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