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How can I fix an Android device that won’t connect to mobile data and shows an ‘Invalid SIM card’ error?

 
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Chris DuBois
Posts: 1229
 Chris DuBois
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Feb 16, 2025 10:43 pm
(@chris)
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Joined: 6 months ago

If your Android phone displays an invalid SIM error or refuses to connect to mobile data, what does it mean? Could it be a carrier issue, SIM card problem, or software glitch? What steps should you take to reset network settings, check for updates, or troubleshoot the problem before replacing your SIM card?

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network Broadband systems server Android
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Topic Tags:  network (127) , Broadband (33) , systems (28) , server (62) , Android (55) ,
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