Use a SIM ejector tool or paperclip to gently remove the SIM tray. Take out the SIM card and inspect it for damage, such as ...
Encountering Android Error 21 can interrupt your device's functionality, leading to frustration and confusion.
Technobezz on MSN
How to fix "No SIM card detected" error on Android
Fix the 'No SIM Card Detected' error on Android with 15 proven solutions. Quick fixes, eSIM troubleshooting, and when to get a replacement SIM.
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