Garmin updating bluetooth firmware garmin nuvi
Symptoms: when travelling a route to a destination, I move only about 500 metres when the moving map & vehicle position freeze on the screen and the FM transmitter to the car radio ceases to operate (goes to static).
I did this as I read some other comments that the Garmin webupdater application has (in some cases) caused corruption.
Holding down the power button will reset it, but bluetooth is still disabled and re-enabling just causes it to freeze again.
I’ve put together a fix that contains steps to follow and a file you’ll need to replace on the nuvi 660 while it’s connected to your PC.
When the unit came back up again the following error came up on the screen: "system software missing" The Nuvi would not boot! HOLD down the power button and you will see "Pre Boot Mode" appear on the lower part of the display.
I contacted the local Garmin support rep and I was given the following sequence to recover from this condition: 1. KEEP HOLDING the power button down and the display will flicker, do this until the pre boot mode message disappears.
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