What if Android can't see the SIM card?
Is My Android Phone Unlocked? How To Check | weBoost
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SIM CARD NOT SHOWING IN MOBILE ( TRY THIS )
How to Fix No SIM Card, Invalid SIM, Or SIM Card Failure Error on Android ZTE
My phone says No SIM Card, No Service or no Internet conexión Android (Fixed)
I have 7.0, I wanted to upgrade to 7.0.2, it seems to be supported. But the phone doesn't find the update, and I don't want to download it locally. Firmware HW1.R1N.V03