Thread: Garmin 265w boot loop, logo, white screen, 3+ years later

Originally Posted by flagmax

So I tried to ergn 14, 16, 41 and 48 but all errors. Tried to xrgn 14 and 48 both errors. The Only thing that does write is updater.exe fw_all.bin only rgn in pre-boot. Its like other guy with 265w, loader can write fw_all, but boot.bin/ldr can not fw_all.

Yes, exactly.
As an experiment, I can try to make a special payload, which when being executed instead of boot.bin, patches the bootloader in the RAM in order to allow flashing region 41, and executes it (QuickCure3 does something similar, but without patching).
But this is quite complicated and I won't have time during the next two weeks.

Originally Posted by flagmax

Lets try to wack the filesystem. How to make rgn with the correct header? I have 48.bin dumped already. I would also like to try rgn the logo using updater too as a test.

As far as I remember, RGN_Tool doesn't allow manually specifying the region number, and it most probably won't detect region 48 by its contents...
So, you'd have to use this: [Only registered and activated users can see links. ]
Also, you can use gfw.exe, but it's a bit more complicated.