RPi + RAK2013 Not Connecting

one left -

5, RF may make inteference caused this issue . Pls send command AT+CFUN=4 and then AT+CPIN? check few times . Or move antenna far away from SIM .

I now get an CME Error:10

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CME Error means “SIM not inserted” . Coud u give the answers for above item 3 ?