Any garmin devices which use proprietary OS like your Drive 61 use RGN/GCD firmware files and they have a boot.bin component contained in the fw file. "Ldr.bin" is just the "boot.bin" renamed and despite the default naming of boot.bin, it's the ramloader. You can extract it from any RGN or GCD file with RGN_Tool.exe, here: [Only registered and activated users can see links. ], or use [Only registered and activated users can see links. ]. There is no reliable way to extract the boot.bin data from a device's onboard region 12 (0x0C) which is a virtual region.



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