Thread: Running programs from SD on nuvi

Ok, i'll just make an SD kit for you to flash using original V8.80 fw. You'll have to be a little patient though, as i have other things to attend to but will do it in the next day then post a link for you. Standby please.

EDIT: Here is the kit for HWID 1758 device V8.80, behind spoiler. Please read the warning and instructions particularly regarding checking the device's HWID before using:

Spoiler:

It's essential to confirm the HWID before using SD to flash. That's particularly so when Garmin has made more than one device with the same MODEL NUMBER but with different HWIDs as is the case with US/EU nuvi 25x9 which can be either 1758, or 1947 in the case of devices with the C4 chip. If unsure please read this thread: [Only registered and activated users can see links. ]. Once you've confirmed the HWID is 1758 you can proceed as below.

• Extract this RAR file directly to a CLEAN microSD card: [Only registered and activated users can see links. ];
• Ensure the device is fully OFF, not just in standby;
• Insert the card and turn on, preferably by connecting to a 5V power source such as the supplied Garmin card charger unless the battery is know to be fully charged (DO NOT use a computer USB port to power it on for this);
• "Loader"/"Software Loading" or similar words will appear on the screen as the text commands are initiated, wait patiently for the flash to finish indicated by the device booting normally;
• Remove the card and keep a copy of the new file "154.bin" which will now be present in the root.

The commands will do this in order (i) Delete any existing gupdate.gcd from the device if present; (ii) Make a copy of ("dump") the content of the NV region 154; (iii) Flash regions 14, 127 & 158 in turn with fresh V8.60 fw data; (iv) Boot the device.

WARNING: Note that any flashing carries risk and that use of this kit is beyond my control. I've taken every possible care in making it but you assume all risk in its use. Flashing the content to a device with a different HWID may result in it being permanently disabled, i.e. "hard-bricked". Do not modify the supplied kit in any way unless you know exactly what you are doing. I accept no responsibility whatsoever - so do not use it if you don't accept this warning.

Hello butter

I have read the whole thread.
Also the description of the commands in the update.txt file.
Also the following description Since my Nuvi is also not recognized by the PC, this could be a solution.
Am a beginner and although I understood how to determine the HWID my 1772 nuvi 2936. I can also generate the LDR.bin and have also already saved the file 154 with it.
But how do I create the files:
158.bin
127.bin
14.bin
for a nuvi 2639 HWID 1772
or are they always the same ? And does the upate text so also fit on a nuvi with HWID 1772.

These are the questions of a learning beginner