Thread: Bricked my 765t

Hi folks. I bought a 765t off ebay, it worked fine when I got it. Used Garmin Express to update the firmware and such, worked fine after that. Put new maps and matching jcv file on device manually, along with some mp3 files on a separate sd card, and now the device gets stuck at loading maps screen.

I forgot to safely remove device when I unplugged it, but I was hooked up to a linux computer at the time and usually that doesn't matter. I suspect the new map file is corrupt, but since the device no longer registers as a usb device in windows or linux I can't tell. I tried a soft reset, that didn't work, then a hard reset, but I never got the prompt to delete user data. So I'm guessing that didn't work.

I found the doc file that explains how to unbrick a nuvi. I downloaded a firmware file and Using Garmincure3 made a firmware cure file. When I click updater.exe it says it can't "ERROR: can't run J:\new\updater.exe" Fine, so I ran updater by itself with the file garmincure3 produced, and i get to the screen where it asks you to select between com and usb. I select usb, put my device into pre-boot mode, it shows up, i click ok,
and then it tells me no updates are available and the device goes into touch calibration mode.

When I run quickcure it tells me exception: readfile. Guess I should have formatted it the one time I got it to mount.

I feel like I'm so close to fixing this thing. So my question is, is the problem that my firmware is already up to date and therefore I can't update it, or did I miss a step somewhere? If someone could point me to the newest firmware that would be great as well, the firmware i'm using is from 2012 according the date modified.

Thank you in advance.