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Reply To: Trouble registering with LTE-M network on Hologram

Home Forums Miscellaneous Trouble registering with LTE-M network on Hologram Reply To: Trouble registering with LTE-M network on Hologram


    Thanks for the tips here.
    I’ve also had trouble with a new Hologram SIM registering to the cell network with a Digi XB3M1.
    I had a working hologram SIM that connected straight away, and then would power off and swop in the new Hologram enabled SIM, and it would poll the cell tower and not work.
    I started trying about 2weeks ago, had to move on to a few other items, came back to it.
    Tried a few more times yesterday, added the tip above, and it worked, and ran overnight OK.
    I’m based 0.23.15 (but latest github.com/EnviroDIY/TinyGSM) and using DigiXBeeCellularTransparent.cpp
    I included and monitored the AT responses
    bool DigiXBeeCellularTransparent::extraModemSetup(void)
    added at the end
    and it sent back an ERROR
    but then the XB3M1 registered.
    Seems like its a magic recipe workaround of some sort, but no idea if this really works till I try registering my next sim.

    The code is here – search “+CREG”
    The first commented out “+CREG” is how I had it.
    Then I introduced an algorithm to only issue “+CREG” it if has been monitoring for 100 times for the next time I register a sim.

    The output is

    Version 11413 <–DigiXBeeCellularTransparent
    Loop=Sec] rx db : Status ‘ Operator ‘ #Polled Cell Status every 1sec
    0=5.28] 0:0x22 ‘OK’
    1=6.30] 0:0x22 ‘OK’
    2=7.32] 0:0x22 ‘OK’
    3=8.34] 0:0x22 ‘OK’
    4=9.35] 0:0xff ‘OK’
    5=10.37] 0:0xff ‘OK’
    6=11.39] 0:0xff ‘OK’
    7=12.41] 0:0xff ‘OK’
    8=13.43] 0:0xff ‘OK’
    9=14.44] 0:0x22 ‘OK’
    10=15.46] 0:0x22 ‘OK’
    11=16.48] 0:0x22 ‘OK’
    12=17.50] 0:0x22 ‘OK’
    13=18.52] 0:0x22 ‘OK’
    14=19.53] 0:0x22 ‘OK’
    15=20.55] 0:0x22 ‘OK’
    16=21.57] 0:0x23 ‘OK’ Cnt=1
    17=22.59] 0:0x0 ‘AT&T Hologram’ Cnt=2
    Cell scan ‘ S MCC:310 MNC:410 Area:35651 CID:169103376 Signal:-98 ‘
    … Setup successful! <–DigiXBeeCellularTransparent