User's Manual

Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [e-mail] • www.skyworksinc.com
205375A • Skyworks Proprietary and Confidential Information • Products and Product Information are Subject to Change Without Notice • May 6, 2019 9
SKY66430-11 / SQN66430-11 SiP • Evaluation Board User Manual V1.0
6.0 Connecting the Board to a Network
If you have access to an LTE-M 4G network or simular:
 Connect the RF cable or the antenna to the RF port of the board
 Insert your SIM card in the SIM slot (cf Board Preparation)
 To check the SIM card state,
- From the terminal, enter
AT+CFUN=1
AT+CPIN?
- Response will be
+CPIN: <code>
<code> = Ready : SIM card is present and unlocked
<code>=SIM PIN : Modem is waiting SIM PIN to be entered
<code>= SIM PUK : Modem is waiting SIM PUK to be given
or ERROR, when SIM is not inserted or not detected
 From the terminal, enter AT+CEREG=1
- This command will allow getting notification every time there is a change of the network registration status
 From the terminal, enter AT+CFUN=1
 Response will be
- OK
- Followed by
CEREG=<stat>
<stat>=0 : Modem is not registered and is not currently searching an operator to register to
Possible cause: SIM card error or registration ongoing
<stat>=1 : Modem is registered on network -board connected-
<stat>=2 : Modem is not registered, but is currently trying to attach or is searching for an operator to register to
Possible causes:
No network available
Available networks have bad coverage
PLMN available but the registration is rejected
<stat>=3 : Registration denied
Possible causes:
Illegal mobile equipment
IMSI unknown at HLR
PLMN not allowed
Location area not allowed
Roaming not allowed in this location area
Network failure
Network congestion