Thread: Convert dezl 770 to any other model

It is only possible if the PCB P/Ns of the two devices match. You can check the PCB on the device itself or in the firmware. Read this thread (not just initial post) to understand how to do that: [Only registered and activated users can see links. ]. Search for "1.0.5.-." in text (31 00 30 00 35 00 2D 00 in hex) using either either the complete fw only as an RGN file or search in fw_all.bin, don't search a GCD firmware file as that might not work due to inclusion of special headers in GCDs. Matching PCB P/Ns doesn't guarantee a smooth conversion however, there are other factors also at play. On the other hand, if the PCB P/Ns don't match a conversion is not possible at all.

If you have it in your hands the easiest way is to go to the volume screen, hold the top rhs, go to developer settings then PCB info.

I'm guessing you will find it's 105-02500-00, and the hardware ID appears to be 2002 - but check this before doing anything radical!

It's definitely different to the RV770, mine is PCB 105-03101-00 and hardware ID 2684. This is same as the localised RV775 here in Australia (essentially same PCB with more memory for the included onboard maps.)

I just had a quick look at some firmware for the following devices and at first pass all appear to be different hardware to yours; RV660, Nuvi 67/68, 25x9, 26x9, 27x9, 34xx, 35x7/35x8

You can sniff out more firmware samples here: [Only registered and activated users can see links. ]

Happy hunting