Those units work just fine on all the default settings. I’d double check there isn’t a wire issue. Make sure RX<>TX. Are the LEDs on the GPS coming on?
I got confused.
It’s a MATEK M10-L4-3100 GPS Module,
and it can work with CAN/MSP.
I couldn’t find how to configure ublox.
I reconfigured it to MSP and gps work fine
SERIAL7_PROTOCOL = 32 (MSP)
SERIAL7_BAUD = 115
GPS1_TYPE = 19 (MSP)
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Thanks and sorry for the confusion.