WP7601-1 no signal

IoT Modules WP Series
1

Hi,

We’re having difficulty with some IoT modules not having any cellular connectivity. Output listed below. Any thoughts as to what is causing this? Being used in the UK if that’s relevant.

root@swi-mdm9x28-wp:~# cm radio
Power:                         ON
Current Network Operator:
Current RAT:                   Module not registered on network, RAT not available
Status:                        Not registered but currently searching for a new operator (LE_MRC_REG_SEARCHING)
Signal:                        No signal strength (0)
PS:                            Packet Switched Not registered (LE_MRC_REG_NONE)```

AT+COPS=?
+CME ERROR: no network service
ati3
Manufacturer: Sierra Wireless, Incorporated
Model: WP7601-1
Revision: SWI9X07Y_02.37.03.00 73df45 jenkins 2020/04/08 10:59:14
IMEI: 351709090109191
IMEI SV: 14
FSN: WC748385801210
+GCAP: +CGSM```

at+cpin
ERROR
AT+CMEE=1
OK
AT+CPIN
ERROR
at+cfun
ERROR
at!gstatus?
!GSTATUS:
Current Time:  683              Temperature: 32
Modem Mitigate Level: 0         ModemProc Mitigate Level: 0
Reset Counter: 1                Mode:        ONLINE
System mode:   LTE              PS state:    Not attached
IMS reg state: UNKNOWN          IMS mode:    Not Support
IMS Srv State: UNKNOWN SMS,UNKNOWN VoIP
LTE band:      No band          LTE bw:      1.4 MHz
LTE Rx chan:   9019             LTE Tx chan:  ---
LTE CA state:  INACTIVE
EMM state:     Deregistered     No Cell
RRC state:     RRC Idle

PCC RxM RSSI:  0                RSRP (dBm):  0
PCC RxD RSSI:  0                RSRP (dBm):  0
Tx Power:      --               TAC:         0001 (1)
RSRQ (dB):     -1205            Cell ID:     10624DD3 (274877907)
SINR (dB):     0

OK
AT+selrat
ERROR
at!band?
Index, Name
00, All bands

Thanks,
Jonathan

2

Jonathan,

A WP7601 only supports LTE bands 4 and 13 which makes it a US only module, it has no bands in common with the UK. You need to use a WP7607 unit.

Regards

Matt

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