[gps-talkusers] updating firmware on a bluetooth receiver

Hi everyone, has anyone ever updated the firmware on a bluetooth receiver? Is this even possible? My receivers are working fine, I was just wondering if their firmware is even upgradeable. It may not be as important as updating a stand alone GPS system, since the receiver only has to send the information to the phone or whatever device is being used, and that device handles all of the routing and map info, but I thought I would ask, happyholidays everyone.

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