Nuvi Pre-boot Mode

**atreio** · 18th September 2012, 01:10 PM

Originally Posted by dasilvarsa

You can make your own LDR.BIN
Just take the Gupdate.GCD File or the RGN file that was used to flash the device to its current level.
Run either through RGN Tool (Credits to turboCCC)
Extract boot.bin
Rename Boot.bin to LDR.BIN

ok im doing again , is case sensitive ? because i used Ldr,ldr and now LDR ok

**atreio** · 19th September 2012, 05:14 AM

I download attach , decompressed ok put it in 1376 folder (ldr.bin it was a little smaller than i have)and this time apears the battery logo and reboot ok ,buy there was no new reg_140.bin nor log file .
so after that i did it again the wrong way !!! : I rename folder to 1101 and also change ldr.bin with 1101ldr and nothing happens, then i rename again 1101 folder to 1376 and 'voilà' i brick it againnnnnn !!!.
Now its start with Garmin Logo and its freeze.

voyager56 · 19th September 2012, 05:29 AM

Do not experiment in renaming folder 1101 to 1376 (or vice versa). This can lead to your device damage. Your current device HwID (1101 or 1376) must be the same as the folder name. Also ldr.bin must be appropriate for this HwID. For device with HwID 1101 you must use ldr.bin from 1101 device. The same is for other HwID.

**atreio** · 19th September 2012, 05:58 AM

Good news! preboot i could enter my gupdate.rgn up and now i have my original 3790 then i hard reset and its all ok.
Conclusions: 1) I am very disappointed with myself 2) I learned a lot thanks to you 3) and most importantly, I made new friends!
It is not my intention to give up but I was very scared, not as continuing, sorry.
I go to sleep from being too tired and stressed at least I will dream with my 3790 converted to 34xx with all the improvements made and voice commands Jaja.

**byebyebye** · 10th October 2012, 08:00 AM

at least for my 1350, touching upper left corner while opening updater.exe will work, but on the screen it won't show anything. the usb device option from updater.exe will become available if you can notice that.

**caradecu** · 8th November 2012, 01:10 PM

Hi!
I have a Garmin Nuvi 765t. Pre-boot mode not working. Internal files was deleted and I trying to fix it.

**khateeb** · 8th November 2012, 01:27 PM

garmin nuvi 1450 problem:

When you go from one place to another in the Garmin Nuvi 1450, device will always be restart ......

i need help to solve this problem

voyager56 · 8th November 2012, 02:18 PM

Originally Posted by caradecu

Hi!
I have a Garmin Nuvi 765t. Pre-boot mode not working. Internal files was deleted and I trying to fix it.

I don't know what sequence did use use for preboot but for Nuvi 765T use the following method:
Power off and USB cable in PC but not Nuvi. Hold finger on the upper right corner of the screen. Slide to Power on, Slide to lock, and quickly Insert USB cable.

**evilskull** · 30th January 2013, 02:26 AM

765T model goes into preboot like this:

-Turn the device off
-Hold the screen above the letters RM
-Lock the device
-Connect it to the PC through USB

Thats all to it

**angelozip** · 8th February 2013, 06:16 AM

Originally Posted by "from post3"

Pre-Boot for navigators nuvi 3450, 3490, 3760, 3790

[COLOR=#333333

1. Turn off the navigator.[/COLOR]

2. Press the upper left corner of the screen.

3. Turn on the navigator and press in the middle of the screen (over the letter "G" of the logo Garmin). Keep on holding your finger on the screen.
iQDlT

Friends,
After a great fright when the Upgrade.exe crashed in the middle of the installation of original firmware of my 3790 (with 3490 fw) and my gps has blotted out totally, noticed that there is a substantial difference in the procedures for entering in pre-boot mode of the 3790 and 3490 firmware/gps. I could only get in preboot after dozens of attempts 99% wrong.. So I'm posting here the way that I judge the more accurate and fast to enter in pre boot on these gps/firmwares.

The fact is that the procedure, or rather the position of the finger on the screen, is different for the 3790 and 3490 (device/firmware)
The procedure works 100% with no errors and at the first attempt:

- For 3790 with original firmware: place your finger ABOVE letter G (25 X 40mm position, as pictured above) only at the time that the Garmin logo appears.
Appearing "system, system .." in the screen the procedure is correct, and follow the process.

- For 3490 (or 3790 with this firmware): position the finger OVER the letter G (35 X 40mm position) only at the time that the Garmin logo appears.. If you see "system, system" .. the procedure is correct (it is not necessary to enable Mass Storage). Just take the process sequence..

Thread: Nuvi Pre-boot Mode

Thread Tools

Display

Advertissements

Tags for this Thread

Bookmarks

Bookmarks

Posting Permissions