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Using Bullseye 32-bit fresh install, I followed all instructions.
The module already had the header soldered on it (home style) when I received it so I assume it is second hand.
Issue: I have no I2C comms, no LTE connection and no GPS data.
LTE antenna is connected, Hologram sim card activated and inserted, GPS antenna connected
I2C connections are good (checked continuity between I2C breakout pins 3.3V, SDA, SCL, GND on module and their respective pins on the Raspberry – they all are connected except for 3.3V. There is 3.3V on the module but there is no continuity)
What more info can I give you to help with finding the root cause of this?