PLS62-W - Trouble connecting to 4G using AT commands | Telit Cinterion IoT Developer Community
July 6, 2020 - 10:26am, 1101 views
Hello,
I'm trying to connect to 4G with the PLS62T-W (LAN version) using AT-commands, however I'm having trouble accomplising this.
From my understanding, I should simply have to use AT+CPIN to enter the SIM code, and then it should automatically try to connect. However when I enter AT+COPS=0, after setting AT+CGREG=2 and AT+CEREG, I get eventually get the URC Registration denied:
For aditional information, I'm using a pre-paid Vodafone SIM card. I first tried the SIM card in a regular cell-phone to test the connection, and this seemed to work.
I'm pretty sure that I am missing a step in the connection, but I don't know what. Can you help me in this problem? Thank you in advance.
Hello,
You should not need anything else besides PIN to get network registration. You may switch off PIN check with AT+CLCK="SC",0,"9999" command, where "9999" is the current PIN, to not need to enter it each time. Or you can configure the PIN in the terminal according to HW description. You may try to select a single RAT for test with AT^SXRAT command to see if it can register to any fo the RATs.
For 4G registration please also check AT+CGDCONT? output - if you have anything configured manually for CID1 please remove it and let the network configure it.
Best regards,
Bartłomiej
Thank you for your reply.
It seems that I made a mistake. When I put the SIM card in a phone and went to a website (google) in its browser, it seemed to pull the site from the cache or something, making me believe that it pulled from the network. I also assumed that the pre-paid SIM card would just work after I bought it, but it seemed that I needed to register an account on Vodafone's site and put credit on the SIM card before it would activate (even though the SIM card manual told me that it was already activated).
When I created an account on Vodafone and put credit on the SIM card, the AT-commands suddenly worked like expected. When I use AT+COPS? (after I switched off the SIM PIN), I got the URC that it was connected to the LTE network.