i have the B306500.update file(old file sw 119)

my garmin upgrade the fireware sw10.20

i want to downgrade the fireware?

how can i do?

how to open the pre-boot ?

about Etrex221xCHN jnx

question about dezl ort1000

Hi everybody.. I couldn't find here, but maybe somebody knows the way to put Garmin Dezl software into Nuvi models, so can use them for truck routes.
I have models Garmin Nuvi 255 and Garmin Drive 50.

I would really appreciate somebody's help.

HI, Got a question. Is Sendmap 2.0 the same as Cgpsmapper? I have a copy of Sendmap 2.0 on my laptop and would like to put a copy on my desktop. Can I just copy the whole folder and move it over or do I need the install package which can't seem to find for Sendmap 2.0. Jim

Does anyone have an unlocked version of the Fitfile Repair tool?

I know it can be purchased but I only have a one off repair to carry out on my Garmin Edge Totals file.

Thanks.

Hello!

Firmware update

Hello. I'm looking for a file or firmware to add the Russian language to the Garmin gPS 60 (not gpsmap 60) device, it's not clear which firmware, but webupdater suggests updating to 2.4
I think the current 2.3

I have the Jetmouse KG v1.5 tool but have yet to be able to use a map I have transferred. I have an unlocked CNNA NT 2023.20 (MapID 9602) installed in basecamp (from when I updated my PC and Nuvi with a Lifetime Map device). I generated the code with Jetmouse for my Nuvi 1300 and "unlocked" the region for the device. After it has been transferred to my Nuvi 1300 and powered up - ...

Hi, I'm struggling to get my Nuvi 42 to recognise my MicroSD with unlocked maps on it.

I've tried it with the img file in the /Map folder and also the /Garmin folder.

My img file is called gmapsupp.img, but I've also renamed it to uk_gmapsupp.img in case it conflicted with the existing image file on the device.

I can copy the unlocked maps onto the device in the /Map folder and this works fine, ...