Can I Update Garmin Bluetooth Firmware Manually


I just bought a Nuvi 885T, and I can't pair my LG Voyager with it. I received a message on screen a couple of times when plugging it in to my CPU that says BLUETOOTH FIRMWARE UPDATING. Unfortunately every time I get this message the screen freezes at about one percent and my CPU USB port recognizing the Nuvi interrupts and seems to cancel the update. Last night I got to 98 percent on the update, then sure enough when my CPU recognized the Nuvi was plugged in it stopped the update by putting the Nuvi into charge mode. Does anyone have any suggestions on how I can successfully update my bluetooth firmware.