Thread: Nuvi Pre-boot Mode

If it's a modern device you firstly have to put it in Storage Mode via Diagnostic Page / MTP settings-
From volume page , hold on right upper corner for some seconds.More here: [Only registered and activated users can see links. ]

Updater.exe for use in pre-boot to flash RGN frmware files is available here: [Only registered and activated users can see links. ]. Garmin USB Drivers are available here: [Only registered and activated users can see links. ]

How to access Pre-Boot for car navigation series Nuvi:

Spoiler:

Note: To use Updater.exe in pre-boot you must have Garmin USB Drivers loaded to the PC.

Most nuvi models can be placed into pre-boot mode for flashing by starting with the unit fully OFF, simply holding the screen in the appropriate place [for most, but not all, that's the upper left corner] and then plugging the USB lead into the unit. Have the USB lead already connected to the PC [preferably a rear port] and updater.exe open ready loaded with the *.rgn file to flash. When the USB is connected, the unit will power up and immediately enter pre-boot.

If nuvi can boot, try to enter diagnostic mode by pressing battery icon for ~5 seconds and then connect USB cable to computer. It your unit can enter into 'pseudo' pre-boot that way it will hold pre-boot indefinitely without going to the white calibration screen which it will do if a flash isn't commenced quickly enough as in 'normal' pre-boot mode. Particularly handy with 7xx units which are notoriously stubborn about entering and holding pre-boot.

Pre-Boot for navigators nuvi 200 series (W), 250 (W), 260 (W):



1. Turn off the navigator.

2. Click and hold the upper left corner of the screen.

3. Click and hold down the power button.



Pre-Boot for navigators nuvi 205 series (W), 215 (W), 255 (W), 265 (W):

1. Turn off the navigator.

2. Press the upper left corner of the screen.

3. Start the navigator

Note: In older versions of the firmware and in some versions of devices is the same than in series 200, 200W .



Pre-Boot for navigators nuvi 710, 760, 715, 765:


1.Turn off Nuvi.

2. Hold finger on the upper right corner of the screen. [NOTE: Some versions particularly 765 require the MIDDLE of the screen be held]

3. Slide to Power on, Slide to lock, and quickly Insert USB cable."

NOTE: Pre-boot for 7xx devices can be as short as 10 seconds, you must be prepared and act quickly!



Pre-Boot for navigators nuvi 300, 310, 350, 360:


1. Turn off the navigator.

2. Click and hold down the power button.



Pre-Boot for navigators nuvi 600 , 610, 660:

1. Turn off the navigator.

2. Click and hold down the power button.



Pre-Boot for navigators nuvi 500, 510, 550:


1. Turn off the navigator.

2. Click and hold the upper left corner of the screen.

3. Click and hold down the power button.



Pre-Boot for navigators nuvi 1200 1210 1300 1310 1350 1390 1410 1490:

1. Turn off the navigator.

2. Press the upper left corner of the screen.

3. Turn on the navigator still holding the upper left corner of the screen



Pre-Boot for navigators nuvi 30, 40, 50:


1. Turn off the navigator.

2. Press the upper left corner of the screen.

3. Turn on the navigator still holding the upper left corner of the screen



Pre-Boot for navigators nuvi 2200, 2250, 2300, 2350, 2360, 2450, 2460:


1. Turn off the navigator.

2. Press the upper left corner of the screen.

3. Turn on the navigator still holding the upper left corner of the screen



Pre-Boot for navigators nuvi 2455, 2495, 2515, 2555, 2595:


1. Turn off the navigator.

2. Press the upper left corner of the screen.

3. Turn on the navigator still holding the upper left corner of the screen.



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

1. Turn off the navigator.

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.
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Pre-Boot for outdoor navigation devices Garmin:

[hide] Pre-Boot for navigators GPSMAP 62 (s) (c) (t) 78 (s) (c) (t):

1. Turn off the navigator.

2. Hold down arrow "up"

3. Turn navigator holding the arrow "up"

Note: "You can also hold down the" Enter "





Pre-Boot for navigators Oregon 200, 300, 400 (t), 450, 550:

1. Turn off the navigator.

2. Click and hold down the power button.





Pre-Boot for navigators Etrex 10,20,30:

1. Shut down the navigator

2. Click and hold down the joystick

3. Turn on navigator holding the joystick



Pre-Boot for navigators Montana 600, 650:

1. Turn off the navigator.

2. Click and hold down the power button.

Is your Nuvi set as Storage mode as said in post n3 ?

Steps used to access pre-boot
3. turn off the gps by press power button ~7 sec
4. turn back on, while the garmin logo is showing, put your finger on top of "RM" area, when you should see the word "system" flashing, plug in your USB cable right away, now the updater should recognize the device. But make sure you click OK fast enough, before the "system" went away. I've been trying this whole day, finally figure out.

taken from:
[Only registered and activated users can see links. ]

firmware used:
nuvi37xx_GCDFile__430.cgd

and lastly:
Garmin Cure 3 used to do the flash... Tool was very easy and worked flawlessly!!