Thread: Garmin devices preboot mode

Originally Posted by smokefree

Following quote comes from another thread, dealing with a nüvi 750:
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A friend of mine has a bricked nüvi 765. Would the procedure to get it into pre-boot mode be the same as described above for the nüvi 750?

The 7x0/7x5 family are queer fish. I always use the method you've quoted with them, but some will also enter preboot by that same method holding anywhere on the screen. I've found with 7x0 often anywhere works, but with some so does holding the upper right corner. All the 765's i've seen only go to preboot holding the upper right crn though. I've also read reports that some users have found only by holding the centre of the screen or on/above the 'RM' of GARMIN for standard EU/US logo splash can they reach preboot. Maybe there's regional hardware/firmware difference, e.g. Asian units but i really dunno. The one sure thing is that you only have a matter of seconds to act when in preboot with nuvi 7 series so you can't mess around.

Originally Posted by smokefree

HWID for nüvi 7x5 is 0870. Would that also be the case for a Volvo nüvi 765T?

There seems no hard and fast rules on this. Many 'branded' nuvis have the same HWID as the originals with just a different splash screen in the logo [rgn16], but some have different HWIDs such as 760 Mercedes/Smart which has 0788 compared to US/EU 760's of 0754 for instance. I don't know about Volvo 765 which is EU only i think. It's possible that car-branded units which use a custom cradle have different HWID to the donor units and those that use the stock-standard powered mounts don't. But again, i dunno and that's only conjecture.

If you can get the unit into preboot, look at the HWID in G7ToWin: [Only registered and activated users can see links. ].