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    sgryphon

    @sgryphon

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    Website sgryphon.gamertheory.net/ Location Brisbane, Australia Age 49

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    Posts made by sgryphon

    • How do I update NB-IoT Unit Global (SIM7020G) firmware?

      The NB-IoT Unit Global (SIM7020G) has firmware 1910B03SIM7020G and there are some functions that are not working, but are working on the Atom DTU NB-IoT Kit Global (SIM7020G) which has firmware 1910B06SIM7020G.

      Does anyone know the process to update the firmware?

      I have contacted SIMCOM support, and they have sent me a tool, and the latest firmware 1910B08SIM7020G, but I can't get the update working, or know what I am supposed to do.

      I have tried connecting the NB-IoT Unit directly to my computer, using a USB-Serial converter, wired direct to TX/RX (and GND).

      The converter only has 3.3V, so I also have an external 5V supply.

      When it is all connected, I can use a terminal program to directly connect to the modem, and send AT commands.

      However I try running their update software and it can't connect.

      Does anyone know the correct procedure?

      Thanks.

      posted in Units
      sgryphon