Newbie, and unable to connect w/ EP-06

Let me start by copy-pasting the information I’ve posted elsewhere.

I hope I’m reporting enough information here.

I have a SixFab LTE “Base HAT” on a Raspberry Pi 3; with a Quectel EP06-A LTE module. I’m in North America, with a Verizon Wireless SIM configured for a datapack.

Image of my physical setup:

I’m using QMI. I’ve followed the QMI tutorial, which results in quectel-CM installed in the pi-user’s home-directory (weird? lol?). I can successfully run quectel-CM, which is promising.

Unfortunately, I get this output:

[07-11_01:13:41:410] Quectel_QConnectManager_Linux_V1.5.9
[07-11_01:13:41:412] Find /sys/bus/usb/devices/1-1.2 idVendor=0x2c7c idProduct=0x306, bus=0x001, dev=0x004
[07-11_01:13:41:413] Auto find qmichannel = /dev/cdc-wdm0
[07-11_01:13:41:413] Auto find usbnet_adapter = wwan0
[07-11_01:13:41:413] netcard driver = qmi_wwan, driver version = 22-Aug-2005
[07-11_01:13:41:414] Modem works in QMI mode
[07-11_01:13:41:430] cdc_wdm_fd = 7
[07-11_01:13:41:590] Get clientWDS = 20
[07-11_01:13:41:655] Get clientDMS = 1
[07-11_01:13:41:719] Get clientNAS = 2
[07-11_01:13:41:783] Get clientUIM = 2
[07-11_01:13:41:847] Get clientWDA = 1
[07-11_01:13:41:913] requestBaseBandVersion EP06ALAR02A07M4G
[07-11_01:13:42:166] requestGetSIMStatus SIMStatus: SIM_READY
[07-11_01:13:42:166] requestSetProfile[1] VZWINTERNET///0
[07-11_01:13:42:294] requestGetProfile[1] VZWINTERNET///0
[07-11_01:13:42:358] requestRegistrationState2 MCC: 311, MNC: 480, PS: Detached, DataCap: UNKNOW
[07-11_01:13:42:422] requestQueryDataCall IPv4ConnectionStatus: DISCONNECTED
[07-11_01:13:42:423] ifconfig wwan0 down
[07-11_01:13:42:448] ifconfig wwan0

At this point, the script hangs; no further output is produced. If I open a second SSH connection
and check ifconfig

pi@raspberrypi:~ $ ifconfig wwan0
wwan0: flags=4291<UP,BROADCAST,RUNNING,NOARP,MULTICAST>  mtu 1500
        inet  netmask  broadcast
        inet6 fe80::b0f2:3cd8:66b7:c51e  prefixlen 64  scopeid 0x20<link>
        ether ae:9f:d1:5f:ab:8e  txqueuelen 1000  (Ethernet)
        RX packets 0  bytes 0 (0.0 B)
        RX errors 0  dropped 0  overruns 0  frame 0
        TX packets 73  bytes 16204 (15.8 KiB)
        TX errors 0  dropped 10 overruns 0  carrier 0  collisions 0

Finally, ping:

pi@raspberrypi:~ $ ping -I wwan0 -c 5
PING ( from wwan0: 56(84) bytes of data.

--- ping statistics ---
5 packets transmitted, 0 received, 100% packet loss, time 177ms

I’m not sure what else to try. I’m sitting in a high-reception area, with port M1(??) on my EP06-A connected to a Browning BR-2430 antenna on the outside of my vehicle. What should I do next to get this puppy working??

In addition, I’ve tried the following AT commands to try and debug; but I haven’t quite figured out what they all mean (I’m new to this, sorry!):


+CSQ: 20,99 // RSSI: -71dBm, bit-errors: Not known or not detectable

Revision: EP06ALAR02A07M4G

+CGREG: 0,2 // Not registered, but MT is currently trying to attach or searching an operator to register to.

+COPS: 0 // status: unknown

+CGDCONT: 1,"IP","VZWINTERNET","",0,0,0,0
+CGDCONT: 2,"IPV4V6","vzwadmin","",0,0,0,0
+CGDCONT: 3,"IPV4V6","vzwinternet","",0,0,0,0
+CGDCONT: 4,"IPV4V6","vzwapp","",0,0,0,0
+CGDCONT: 5,"IPV4V6","vzw800","",0,0,0,0
+CGDCONT: 6,"IPV4V6","vzwemergency","",0,0,0,1

+CGPADDR: 1,""
+CGPADDR: 2,""
+CGPADDR: 3,""
+CGPADDR: 4,""
+CGPADDR: 5,""
+CGPADDR: 6,""

So, how do I get my EP-06 to connect to the network and provide an IP address on wwan0?

The reason that the dialing tool failed to execute is that the PS attachment failed. Please first check your network environment to ensure that the PS attachment is successful (at+cgatt? returns to 1), and then run the dialing tool. First test that the SIM can be used normally on your mobile phone , Please use the same APN as the module.

Thank you so much!

I’m not getting a lot of Google results for “PS attachment”; what is “PS” an acronym for? I’d like to further research this and figure out why this is failing.

PS:Packet Service.
The following dialing process is for your reference: