Quote Originally Posted by kunix View Post
redruM69
Your UnitID belongs to a nuvi 760 device, so you should use HWID=754 firmware, I think.
Can you please clarify this?
If you flash the original HWID=754 firmware with updater.exe, what happens? Does it show "system software missing"? Or does it boot and then show "LOADER LOADING ..." and hang? In the first case it's likely that the flash chip is broken. In the second it looks like the GCD file is corrupt. Then using GarminCure3 to get into the mass storage mode and remove the GCD.
The unit says Nuvi 780 on the back of it.

To clarify what is going on... I can flash the unit in preboot mode, and when uploader.exe completes, the nuvi then says "Loader Loading...". However it never does anything else. I eventually give up, and reboot it, and it goes back to "System Software Missing".



Quote Originally Posted by lolypop000 View Post
I create for you cure FW and already rename rgn to 0872

If you have after flash with cure folder in pre boot access to mass storage please upload your gupdate.gcd here and then remove it from your nuvi to Pc

After you do this flash in pre boot with folder original and if all go ok your nuvi will work.
I was able to flash with the Cure FW, but it still hangs on "Loader Loading..." after completion. Reboot goes back to "System Software Missing" with no mass storage available.