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What should I do if it says “No SIM” or “Invalid SIM” on the router configuration page?

Possible reasons for this may be that there is no SIM inserted in the device, or it is inserted incorrectly, or the SIM is disabled. Try removing your SIM and reinserting it. Make sure not to touch the contact point when doing so.


Note: This Q&A question only applies to devices with a SIM card slot.