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

**steveor** · 26th June 2013, 03:42 AM

Many thanks for GarminCure3 tool so I can communicate with my nuvi 255 again. I updated the cure and my XP pc recognized my nuvi but I couldn't access the files in the directory without my computer hanging. I was also unable to copy the contents of the nuvi for some reason in order to create backup files. So in frustration I just decided to format using RMPREPUSB at these settings: Max/GARMIN/Set part as non bootable/MS DOS Bootable/Boot as FDD/Fat 32 and hope for the best. Unfortunately my nuvi now does not respond when I attempt to turn it on or off or attempt to pre-boot. It is stuck on unless I let it die or take it apart and disconnect the battery. So I am unable to get GarminCure3 to communicate in order to reload the original firmware. I've been reading about loading the firmware using an SD card but I'm not sure how to proceed.

Any assistance to get my nuvi 255 up and running again would be greatly appreciated.

**kunix** · 26th June 2013, 08:36 AM

Did you try to do as suggested below?

Originally Posted by kunix

“Safely” disconnect your device from the PC. It should turn off in a few seconds. If it doesn’t then press the power button for at least 30 seconds. Be aware that some devices don’t turn off this way. You should know how to turn your device off if it hangs up.

**steveor** · 26th June 2013, 02:43 PM

No matter what I do the power button has no effect with one exception. When I left the device alone for a while, perhaps an hour or two, I saw that it shut off by itself. I then turned it back on but then the button has no effect again. The reset button works but again the power button does not work and I can't do a pre-boot.

**dasilvarsa** · 26th June 2013, 02:56 PM

Do you get Garmin Splash Screen ? (Logo)

If you cannot get the device into pre-boot mode it will be difficult to fix

**lolypop000** · 26th June 2013, 03:19 PM

Turn nuvi off

open updater.exe

lock screen

add finger in uper left corner and conect nuvi to PC ( you must hold finger in screen all the time )

updater will recognize your nuvi

**steveor** · 26th June 2013, 04:18 PM

The Garmin logo appears but I can't do the left corner/power on because the power button seems to be unrecognized by the device. Did I screw soething up in formatting it?

**kunix** · 26th June 2013, 04:43 PM

Originally Posted by steveor

Did I screw soething up in formatting it?

It's impossible to break anything in your nuvi by flashing GarminCure3-ed firmware or formatting the internal flash drive. Just keep trying.

**lolypop000** · 26th June 2013, 04:57 PM

Try with this:

Download and extract rar direct on empty SD

[Only registered and activated users can see links. ]

Turn nuvi off and add SD in nuvi

Turn nuvi ON and whait that nuvi turn off and on again

**steveor** · 26th June 2013, 05:14 PM

At work now so I can't download it but I'll try it when I get home. Thanks.

**steveor** · 27th June 2013, 01:22 AM

Unfortunately it didn't solve the problem. I put the files in my SD card, powered off the device by pushing the reset button (nothing else will turn it off), put in the SD card, and turned on the device. Nothing happened except the Garmin screen popped and nothing more. My attempts at a pre-boot are also unsuccessful.

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