[Hilo] Why many AT commands return ERROR?

FAQ_Poster July 19, 2013, 6:36am 1

[Hilo] Why many AT commands return ERROR?
Answer: Please check if SIM card is inserted correctly, and check if the PIN code is needed
Also please set <AT+CMEE=2> to know more details of the ERROR code.

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[Hilo] Why many AT commands return ERROR?

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