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lathiat
2y ago
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The iPhone 7 and earlier all had an aluminium back no issue. Changed to glass from the 8/X onwards for wireless charging.
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hasperdi
2y ago
iPhone 7 placed the antenna on the rim, the area where there is a bit of plastic. For years iPhone wireless & wifi connections are somewhat weaker than other phones, I suspect it's because the metal back.
Wireless charging is also RF btw.
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