Background facts and preparation:Quote:
Originally Posted by Qdshayes [Only registered and activated users can see links. Click Here To Register...]
- The unit is in pre-boot during the period before the white calibration screen is shown.
- If a flash is not initiated in that period it exits pre-boot to the calibration mode.
- The pre-boot period varies depending on the model, for some Garmin units it's as short as 10 seconds and always exits if a timely flash is not initiated.
- [Only registered and activated users can see links. Click Here To Register...] must be loaded on the PC for the unit to be accessed by Updater.exe in pre-boot mode, if not sure just load again.
Step by Step Instructions:
Please take a deep breath and go slow. The only time you need be quick is for Points 7 & 8, otherwise take your time but follow this precisely:
- Drag the cure3 rgn file onto Updater.exe
- Leave Updater's GUI visible on the PC Desktop with the Radio Button enabled for 'USB Device'
- Position the mouse cursor over 'OK' on the GUI
- Connect the USB cable directly to a rear port of the PC [don't use a hub or front port]
- Ensure zumo is fully off
- Press and hold the lower left corner of the zumo's screen then press and hold the power button
- Quickly connect the USB cable to the zumo [release power button when zumo turns on] while watching the window next to 'USB Device' on Updater's GUI
- Immediately you see the zumo's details appear in the window click 'OK' or press Enter key on the PC keyboard
- Don't release the screen at least until you see 'Loader' or 'Software Loading' or similar message on the zumo screen [or just hold it for the entire flashing process if you want]
The unit should then be shown in Mass Storage Mode, so make a backup of the file system now. After, delete the guilty file/s if you know what caused it to brick. If you don't know then use RMPrepUSB to reformat it and after formatting create a folder named Garmin in the root. Safely disconnect from PC. Again enter pre-boot and flash the original firmware which should allow it to boot normally. Read again the initial post in this thread very carefully.