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

lolypop000
I have no idea where usb-related info is stored, if any. But I think it's a good idea to flash a few regions dumped from a healthy device.

Originally Posted by lolypop000

@kunix

In what NVM region is usb,in region 41?
If it in some other region i can send him nvm backup,or if i send him region 5 and 14 maybe then will problem disapere?

How do you check that?

Download and extract directly to empty SD

[Only registered and activated users can see links. ]

Add SD card in nuvi and turn it ON (disconnect nuvi from Pc before you turn ON)

When flash is over your nuvi will turn on normaly

Now erase all from SD

well, followed instructions, still nothing... device not detected by PC.

weird huh

Originally Posted by kunix

As Alexander2010 says, a Power Cable is one having a 12KOhm resistor connecting the GND and the ID pins. So maybe your problem is due to some current leak either in the cable or in the nuvi. Then try using other cables and/or cleaning both USB connectors. If it still doesn't help then I can try to make a firmware patcher that forces entering the flash drive mode when a Power Cable is connected. However, this wouldn't be comfortable in everyday use.

Can you really do this? it�s worth to try.

You will have a problem using it with a Car Power supply if the sofware is patched to enter USB Mode with a Charger Cable.

right... so? what now? i don�t know what else to do...

I have one more idea... Each time you want to see the nuvi's flash drive you put it into pre-boot mode and flash something quickly. After you're done with the flash drive, the nuvi boots normally. No need to flash two large firmwares, but just a small one and only once.

Today i might have access to my uncle�s Nuvi 1300. Do you think it is possible to clone nuvi�s drive with some tool or something like that?

thanks.

Originally Posted by kunix

I have one more idea... Each time you want to see the nuvi's flash drive you put it into pre-boot mode and flash something quickly. After you're done with the flash drive, the nuvi boots normally. No need to flash two large firmwares, but just a small one and only once.

it�s kind of annoying, but it can work... actually it�s what i did to update my Nuvi. Like i don�t have to do that very often i think this can work, and i can update maps with the SD using an external card reader. I just wanted to make it work like it should.

Thanks for all your help.