On my XXL540 device

I have GPS: GL2 BCM 4750
Clocks: 264.0 132.0 66.0
Internal Flash capacity 2007040 KB
RAM 64MB

Device ID: RX7420C0011

I replace the glgps in the bin folder. Hasn't made any difference. I have Navcore v9.541 installed some time ago.

Whether the Navcore v9.541 is part of the problem, I don't know.

I would not know if there is an update, upgrade or patch that I could use for my device as its officially no longer supported.