I mean, microSD cards in phones are probably becoming obsolete, to make more room in the phone, like what they did with the headphone jack removal. They still have microSD slots in their laptops and probably even some Chromebooks.
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Well the Note20 and Note20 Ultra have a much different camera glass setup than the Note10 and Note10+, so some issues are expected. The S20 Ultra had as worse issues the damaged camera glasses on some units looked like bullet holes.
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It's a calibration issue. When I'm at the airport, I get full bars on my Note10+, or else I get 2-4 bars depending on where I am. I would need to see a cellular tower to get 4 bars.
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I heard that if a component is not attached tight enough in the Note10, there can be weak signal issues. This was from a teardown I saw somewhere. Samsung doesn't test for proper signal connection according to what I see in the diagnostics TESTMODE.
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