My htc one m8 sometimes sim read error. don't show signal, now what can I do?

[AC Question]

SIM reading error, showing notification cross signal.

 

[belodion]

Make sure the SIM is correctly seated in its tray, and that both the SIM and tray are clean. If the problem persists, try another SIM temporarily. If that seems to work, contact your network or carrier for a replacement SIM with the same phone number on it.

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