Thread: GarminCure3 tool - the new way to create cure firmwares for Garmin devices

catymag first i told you something i do preboot hold the upper left corner of the screen I Start the navigator. No show me preboot laters but if i connect to my computer say Garmin Usb GPS. and after i use update.exe for my firmware. Not see in windows my Garmin device. USB Garmin drivers installed? YES.

Probably you would need to erase NV memory ("ergn,41" command in update.txt). If it's corrupted, your device will reboot continuosly even when the CURE firmware patched by GarminCure3 is flashed. Now I'm going to bed, I will write a how-to for you tomorrow if someone doesn't do it sooner. We need another cure for NV clearing, yeah.

Kunix u are the best thanks have a nice night

Here you are: [Only registered and activated users can see links. ]
How to use it:
1) Take a clean SD card, copy Garmin folder from the archive to the root of the SD card.
2) Insert the SD card into your Garmin device.
3) Flash RGN file from the archive. (You said you were able to flash firmwares so I don't explain it in detail).
4) Wait 5 minutes.
5) Extract the SD card and post SD:\Garmin\Updater\0943\update.log here (while erasing your UnitID here).

kunix good morning i do u instructions but nothing continues to blink and I do not create a file update.log maybe beacuse blink to fast and dont see SD Card

Did RGN file flashed normally?
If it doesn't create update.log then your SD card is probably not recognized. Try formatting it as suggested [Only registered and activated users can see links. ] or try getting a new one.

Originally Posted by Nescaffe

kunix i have 2 garmin same problem 1 465t and 255w upgrate on garmin company to version 465T. The 465t do nothing but in 255w say now software loading and one green line is down in display!! i m waiting 5 min and i told you

This is exactly how this RGN should work. Please post here update.log from that 255w and make sure that SD:\41-backup.bin is created.

Oh well, I'm afraid it's a hardware problem. The flash chip inside both devices is broken. On a healthy device "ergn,41" should work without any error.