Hi, I am in Korea and I use Quectel BG96 for Cat.m1.
I can use it using a Korean telecom company USIM though, I want to use global USIM.
Is it possible to communicate Cat.M1 by inserting hologram USIM on BG96 device?
It looks like Hologram has relationships with the following carriers: " LG Uplus, KT Corporation, SK Telecom" (check Global IoT Coverage | Hologram) It does not explicitly state CAT-M1 is supported (which they do list in USA for example). That said it may work anyway (I have units is Australia that work with Telstra without CAT-M1 being listed). Unless a Hologram rep responds I think your best bet is to just try it.
Oh, I see.
When you tried before, do you remember how did you do?
I tried like this though, it doesn’t work…
- Active USIM though web site
- Modify APN info in module
- Reset a module
Can you post the results of the following AT commands?
AT+CPIN (response should be “READY”)
AT+COPS=? (response should be a list of network operators the device can see). If you get an error, wait a few minutes and try again.
Maybe best to post results with both simcards.
Hi, Thank you for your help !
/* Hologram USIM results */
AT+CPIN?
+CPIN: READY
AT+COPS=?
+COPS: (2,“LG U+”,“LG U+”,“45006”,7),(1,“450 05”,“450 05”,“45005”,7),(3,“450 12”,“450 12”,“45012”,7),(1,“450 28”,“450 28”,“45028”,7),(0,1,2,3,4),(0,1,2)
AT+COPS?
+COPS: 0,0,“LG U+”,7
/* Korean Telecom Company USIM */
AT+CPIN?
+CPIN: READY
AT+COPS=?
+COPS: (3,“450 06”,“450 06”,“45006”,7),(2,“SKTelecom”,“SKTeleco”,“45012”,7),(1,“450 28”,“450 28”,“45028”,7),(1,“450 05”,“450 05”,“45005”,7),(0,1,2,3,4),(0,1,2)
AT+COPS?
+COPS: 0,0,“SKTelecom”,7
It looks like you are connected with the Hologram simcard? based on results of AT+COPS? That response says you are connected to an “LG U+” tower?
In that same setup try:
AT+CREG? <<check if you are registered (regardless of technology)
AT+CEREG=2 <<tells modem to give you more details
AT+CEREG? <<get EPS registration status
AT+CSQ <<get signal strength
AT+CGDCONT? <<print out all pdp contexts and assigned IP
Note I’m basing this off of my knowledge of the same AT commands for U-Blox modems.
Yeah, that is what I feel confusing parts. When I insert hologram USIM to Cat.M1 module, It says it connected to a “LG U+”, but it has no relationship with LG U+ totally.
/* Hologram USIM results */.
AT+CREG?
+CREG: 0,5
OK
AT+CEREG?
+CEREG: 2,5,“80A”,“0”,“13BD0B”,7
OK
AT+CREG?
+CREG: 0,5
OK
AT+CEREG=2
OK
AT+CEREG?
+CEREG: 2,5,“80A”,“0”,“13BD0B”,7
OK
AT+CSQ
+CSQ: 31,99
OK
AT+CGDCONT? ← I set manually a hologram APN information.
+CGDCONT: 1,“IPV4V6”,“hologram”,“0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0”,0,0,0,0
+CGDCONT: 2,“IPV4V6”,“lte-internet.sktelecom.com”,“0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0”,0,0,0,0
+CGDCONT: 3,“IPV4V6”,“ims”,“0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0”,0,0,0,0
+CGDCONT: 4,“IPV4V6”,“”,“0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0”,0,0,0,0
OK
/* Korean Telecom Company USIM */
AT+CREG?
+CREG: 0,1
OK
AT+CEREG=2
OK
AT+CEREG?
+CEREG: 2,1,“80A”,“31”,“13BD0B”,7
OK
AT+CSQ
+CSQ: 31,99
OK
AT+CGDCONT? ← I set manually a hologram APN information.
+CGDCONT: 1,“IPV4V6”,“hologram”,“0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0”,0,0,0,0
+CGDCONT: 2,“IPV4V6”,“lte-internet.sktelecom.com”,“0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0”,0,0,0,0
+CGDCONT: 3,“IPV4V6”,“ims”,“0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0”,0,0,0,0
+CGDCONT: 4,“IPV4V6”,“”,“0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0”,0,0,0,0
OK
USIM Status looks fine though, I have no idea what is wrong.
And when did you tried, did you use one of hologram compatible hardwares ?
Actually what I using is not in this lists.
You can check whether your device was hologram compatible H/W or not.
Quectel BG96 should be fine, I use U-Blox SARA-R410M since their documentation is fantastic, they are easily sourced in the USA and its the part used by Hologram’s hardware so if I run into issues with connectivity I can compare to Nova behavior or perform any debugging they recommend with the Nova.
That being said, you are registered and online, what exactly can you do with the Korean telecom SIM that you cant do with the Hologram sim?
Hi,
In case of Korean USIM, I can use functions like SMS, Socket, Ping though,
when I use a hologram USIM, I cannot get a even IP, also It doesn’t work functions like SMS, Socket, Ping.
From what I checked U-Blox SARA-R410M is not hologram compatible, isn’t it?
Um… When did you use a hologram USIM using Ublox device, did you set an APN information like this?
AT+CGDCONT? <-- I set manually a hologram APN information.
+CGDCONT: 1,“IPV4V6”,“hologram”,“0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0”,0,0,0,0
I set it to IP4 only but I dont know if this is required the command I use is:
AT+CGDCONT=1,"IP","hologram"
Its best to post exactly what commands you are sending and what responses you are getting. It sounds like you could always register but its socket issues?
Give an example (AT commands and responses) of something you are doing with sockets that doesnt work.
Hi, Thanks for reply !!
Basically, It is process getting IP and ping.
/* Korean Telecom Company USIM */
AT*RNDISDATA=1
*RNDISDATA:1
OK
AT*WWANIP?
V4:
V6: 2001:2d8:13ba:7d1e:d922:bf78:3c57:d4ae
OK
AT*PING=8.8.8.8,5
OK
PING 64:ff9b::8.8.8.8(64:ff9b::808:808) 56 data bytes
64 bytes from 64:ff9b::808:808: icmp_seq=1 ttl=115 time=451 ms
64 bytes from 64:ff9b::808:808: icmp_seq=2 ttl=115 time=186 ms
64 bytes from 64:ff9b::808:808: icmp_seq=3 ttl=115 time=146 ms
64 bytes from 64:ff9b::808:808: icmp_seq=4 ttl=115 time=183 ms
64 bytes from 64:ff9b::808:808: icmp_seq=5 ttl=115 time=119 ms
— 64:ff9b::8.8.8.8 ping statistics —
5 packets transmitted, 5 received, 0% packet loss, time 4007ms
rtt min/avg/max/mdev = 119.257/217.280/451.371/119.651 ms
rtt min/avg/max/mdev = 119.257/217.280/451.371/119.651 ms
/* Hologram USIM results */.
AT*RNDISDATA=1
*RNDISDATA:1
OK
AT*WWANIP?
V4:
V6:
OK
AT*PING=8.8.8.8,5
OK
connect: Network is unreachable
connect: Network is unreachable
It is likely a configuration of your device issue. I dont see those commands in the Quectel BG96 AT command manual: https://www.quectel.com/UploadImage/Downlad/Quectel_BG96_AT_Commands_Manual_V2.1.pdf
What do you get with the ATI command?
also try:
AT+CGATT? << check if attached to Packet Switched service
AT+CGACT? << check if any contexts are activated
AT+CGATT=1 <<manually enable PS service
AT+CGACT=1,1 <<manually activate the “hologram” context
then re run:
AT+CGDCONT? to see if you are given an IP
AT+CGPADDR=1 << should do the same as above.
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