Is there an current documentation on how to setup the APN for hologram to provision a SIM on the network?

As long as you have service in the area and you activated you SIM you should not need to set the APN.

@jaredwolff - thx! i ,must be in a T-Mobile Deadspot then for Hologram cause i’m stuck in pending on provisioning the sim

It’s possible depending on where you are.

To confirm, with the LTE antenna connected (to the correct U.FL connector!) and in the AT client firmware you can run:

AT+CEREG=5
AT+CFUN=1

This will show you updates as it tries to connect and then enable the modem. It should spit out when you’re connected.

I assume you’re doing something similar?

    jaredwolff I solely ran:

    AT+CFUN=1

    in the AT Client - and i have the U.FL LTE antenna connected and laminated on the inside of the case

      rabarar and for a hot second, I got these replies:

      +CEREG: 2,"4FE8","0D65DF15",7
      +CEREG: 5,"4FE8","0D65DF15",7,,,"11100000","11100000"

      From that output seems like your device is registering. Hologram’s interface is sometimes slow to update.

        jaredwolff that was my take as well. I can see registration on hologram, but it still shows as activation pending, and so far no luck sending sms message

        Are you sure you’re looking at the correct SIM? Easy mistake since those ISSIDs are so long.

          jaredwolff Can you use the at_client to send the command given the binary characters required in the string?

          jaredwolff AT+CEREG=5

          so here’s what i’m sending:

          	"AT+CNMI=3,2,0,1",
          	"AT+CMGS=35\r0011000B814134471567F000000B17C8329BFD064D9B5362999DB697E565B96BFC6E8700\x1A",
          	/* Add more here if needed */
          };

          and here’s the output from the sms app when i press the button:

          Button pressed at 952749
          AT+CNMI=3,2,0,1
          0011000B814134471567F000000B17C8329BFD064D9B5362999DB697E565B96BFC6E8700

          and here’s a decent online URL to decode the message showing it’s valid: https://www.smsdeliverer.com/online-sms-pdu-decoder.aspx

          still nada coming to my phone… interestingly, no response callback is called …

          and if i type AT or press the button once more, i get an error and the modem is left in a weird state no longer accepting commands from the terminal:

          0011000B814134471567F000000B17C8329BFD064D9B5362999DB697E565B96BFC6E8700. Error: -1.

          and from that point until RESET it solely echoes back what i type to the serial port

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