WP7610 Registration Issues

IoT Modules WP Series
1

I am attempting to register a WP7610 using the UART1 interface simply with AT commands.

I am able to enumerate the interface reliably and send the following commands:

AT+CREG=2
OK

//Confirm the APN is set (There is no username or password for this APN)
AT+CGDCONT?
+CGDCONT: 1,“IP”,“ltemobile.apn”,“0.0.0.0”,0,0,0,0
+CGDCONT: 2,“IPV4V6”,“ims”,“0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0”,0,0,0,0
+CGDCONT: 3,“IPV4V6”,“sos”,“0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0”,0,0,0,1

I was suspecting that this would be enough to allow me to register the device. I confirmed that my SIM card is ready
AT+CPIN?
+CPIN: READY

I query the GSTATUS and get the following:

AT!GSTATUS?
!GSTATUS:
Current Time: 878 Temperature: 33
Modem Mitigate Level: 0 ModemProc Mitigate Level: 0
Reset Counter: 1 Mode: ONLINE
System mode: LTE PS state: Not attached
IMS reg state: NOT REGISTERED IMS mode: Normal
IMS Srv State: NO SMS,NO VoIP
LTE band: No band LTE bw: 1.4 MHz
LTE Rx chan: 0 LTE Tx chan: —
LTE CA state: INACTIVE
EMM state: Deregistered Attach Needed
RRC state: RRC Idle

PCC RxM RSSI: 0 RSRP (dBm): 0
PCC RxD RSSI: 0 RSRP (dBm): 0
Tx Power: – TAC: 0000 (0)
RSRQ (dB): 0 Cell ID: 00000000 (0)
SINR (dB): 0

OK

The COPS is set to Automatic:

AT+COPS?
+COPS: 0

OK

Edit:
I am using the Generic Firmware.
root@swi-mdm9x28-wp:~# cm info
Device: WP7610
IMEI: 015250000337927
IMEISV: E
FSN: ZT022172690210
Firmware Version: SWI9X07Y_02.37.03.00 73df45 jenkins 2020/04/08 10:59:14
Bootloader Version: SWI9X07Y_02.37.03.00 73df45 jenkins 2020/04/08 10:59:14
MCU Version:
PRI Part Number (PN): 9908619
PRI Revision: 001.003
Carrier PRI Name: GENERIC
Carrier PRI Revision: 002.095_000
SKU: 1104125
Last Reset Cause: Reset, Hardware Switch
Resets Count: Expected: 57 Unexpected: 0

Any help would be appreciated.

2

Hi @evand ,

  1. Can you please recheck the antenna and verify that it is connected to the module properly. After that, reset the module and check the signal again.

Reset module: AT+CFUN=1,1
Check signal quality: AT+CSQ
Check module status: AT!GSTATUS?

  1. Verify the active UIM interface
    AT!UIMS?
    Please issue AT!UIMS=0 to select external SIM for UIM interface
  2. Query the current band setting on the module. Please set it to “All bands” if it is been setting to a specific band which is not supported by your carrier

AT!UNLOCK=”A710”
Query the current band setting: AT!BAND?
Set to “All bands”: AT!BAND=0
Verify set band:
AT!BAND?
Index, Name, GW Band Mask L Band Mask TDS Band Mask
00, All bands, 0002000007C00000 00000100330818DF 0000000000000000
Search the network that the module can see: AT+COPS=?
Check for PDP context status: AT+CGACT?
Check module status: AT!GSTATUS?

Please share if you have any concerns. Help us tick “Solution” if your problem is resolved. It is useful to someone getting the same
Thanks

3

Hi @Vianney,

Thanks for your response.

I did a reset checked CSQ and its giving:
AT+CSQ
+CSQ: 99,99

I don’t have another antenna with me but i will try another one in the office tomorrow.

AT!GSTATUS? gives:
!GSTATUS:
Current Time: 277 Temperature: 33
Modem Mitigate Level: 0 ModemProc Mitigate Level: 0
Reset Counter: 2 Mode: ONLINE
System mode: LTE PS state: Not attached
IMS reg state: NOT REGISTERED IMS mode: Normal
IMS Srv State: NO SMS,NO VoIP
LTE band: No band LTE bw: 1.4 MHz
LTE Rx chan: 0 LTE Tx chan: —
LTE CA state: INACTIVE
EMM state: Deregistered Attach Needed
RRC state: RRC Idle

PCC RxM RSSI: 0 RSRP (dBm): 0
PCC RxD RSSI: 0 RSRP (dBm): 0
Tx Power: – TAC: 0000 (0)
RSRQ (dB): 0 Cell ID: 00000000 (0)
SINR (dB): 0

//It is already set for UIM 1
AT!UIMS?
!UIMS: 0

Tried AT!UNLOCK but didn’t work, used AT!ENTERCND which i believe you may have intended.

AT!UNLOCK=“A710”
ERROR
AT!ENTERCND=“A710”
OK
AT!BAND?
Index, Name, GW Band Mask L Band Mask 1 TDS Band Mask L Band Mask 2
00, All bands, 0000000006800000 000000000001381A 0000000000000000 0000000000000002

//COPS is already Auto
AT+COPS?
+COPS: 0

//PDP Context Status doesn’t appear to give anything useful.
AT+CGACT?
+CGACT: 1,0
+CGACT: 2,0
+CGACT: 3,0

I will try another antenna tomorrow, any other suggestions would be appreciated.

4

Hi @evand ,

It look likes the signal is received on your module is not good. Please use another antenna and share your result

Thanks

5

@Vianney ,

I have resolved the antenna issue however I cannot establish voice calls.

AT+CSQ
+CSQ: 10,99

It appears registered since I see:
+CREG: 2,1,“FFFE”,“C84E17”,7

GSTATUS gives:

!GSTATUS:
Current Time: 1008 Temperature: 30
Modem Mitigate Level: 0 ModemProc Mitigate Level: 0
Reset Counter: 1 Mode: ONLINE
System mode: LTE PS state: Attached
IMS reg state: NOT REGISTERED IMS mode: Normal
IMS Srv State: NO SMS,NO VoIP
LTE band: B2 LTE bw: 15 MHz
LTE Rx chan: 1075 LTE Tx chan: 19075
LTE CA state: INACTIVE
EMM state: Registered Normal Service
RRC state: RRC Idle
PCC RxM RSSI: -95 RSRP (dBm): -140
PCC RxD RSSI: -92 RSRP (dBm): -127
Tx Power: – TAC: 5A05 (23045)
RSRQ (dB): -15 Cell ID: 00C84E17 (13127191)
SINR (dB): 1.2
OK

Dialing out to a phone number or calling the SIM does not work. I know the voice plan is setup on this SIM since i use it with another device.

Edit: There was an issue with our Antenna path which caused poor reception and intermittent registration. In the end it was a hardware issue.

Thanks.