I have a Oneplus 9, that got the android 12 update, and since then, it will not recognize any sim put into it, and has two shaded sim icons where the signal and battery percentage are. I called Tmobile, explained my problem and they shipped out a replacement really quickly. My issue started when I went to the store and pick up the phone. I was asked to pay 21 dollars. I told them I wasn't going to pay for something that was not of my doing, I don't care if it cost ten cents. I researched the issue, and people on Xda are having the same issue, with it being a problem with the build.prop in the OS. Those that have an unlocked and rooted phone can fix the issue by editing the build.prop. I haven't rooted a phone in 8 years and I'm not about to start....I'm too busy, plus the phone isn't fully paid off yet. I was told the issue would be sent up higher. Hopefully I can have this issue fixed without paying anything as I did not cause this problem.....
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