I have the same issue since 2 weeks ago. I am not sure whether it is a software issue. I had signal issue on other phone before and it turns out to be a hardware issue. Are you on One UI 3 beta?
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I have exactly the same issue since 2 weeks ago. I am wondering whether this has something to do with the software upgrade or the wifi antenna.
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I find some black pixels at the edge of the screen. My warranty is about to expire. Is it covered in the warranty? If I want to trade-in for a new phone, does it count as a cracked screen?
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