IMPORTANT! If you want HELP in case of a bricked Garmin device, please follow this

**Crviana** · 25th March 2023, 11:12 PM

Hi Butters,
I haven't identified the problem that caused the slow behavior of the Nav IV.
Format it once was enough to solve the problem. When I flashed the original firmware I didn't format again.
It created a Garmin folder with a GarminDevice file inside, and I recover the files with Garmin Express, and completed with the files that I had from another unit. ex gmapbmap etc
Thanks again

**FixMyEdge** · 27th April 2023, 04:03 PM

Hi all,

I have a half bricked Garmin Edge 705. My symptoms are:
Unit will switch on and find satellites, will 'record' a route while it is being ridden but will not save it to the unit. It can't 'see' any maps on either the unit or the SD card. It won't automatically connect to the PC when I connect it, I have to long press the power button, then it will connect.

Due to this, I'm having issues getting into pre-boot mode (long press lap/reset when connecting the device to the PC). I've made a 'new' rgn file with GarminCure3, using 3.10 firmware (unit 'claims' it is running 3.30 firmware) but can't get it loaded as I can't get into the pre boot mode.

What's my next thing to try please?

Details are:
1) Garmin Edge 705, FW 3.30, HWID 0625
2) why and how - can't remember - it's been sat in a drawer for a long time.
3) Symptoms as initial description above
4) Yes, but not automatically. When I plug it in, it will power up and start searching for satellites. I then medium press the power button and I get the charging screen with the word GARMIN and the battery indicator. I then long press the power button and it connect to my PC and I can browse the empty file structure (formatted FAT32).
5) I've tried (via EaseUs software and Windows utilities) deleting the partition and recreating it, formatting to FAT32, tried putting GUPDATE.GCD for 3.10 into the root folder, the Garmin folder and both places on SD card. I've tried copying my folders from a good working Edge 705 (I have 2 working and this non-working one).
6) Garmin USB drivers installed, 2 other Edge 705 units and an Edge 305 connect fine.
7) HWID is 0625 (from another unit as this broken one has no folders / files present after many formats)
8) I've posted in one of the other threads already
9) Can't reach pre boot mode
10) NV backup?

Thanks in advance,
Phil

**asprin624** · 28th April 2023, 08:34 AM

Good info over at the Garmin site in regards to the Edge 705 Device.

Spoiler: The Edge 705 info

Might find your answer there too.

**FixMyEdge** · 28th April 2023, 09:34 AM

Thanks the link inside that link (ie from the Garmin website) is dead (your link is good), so I can't see what was proposed but I did Google 'Boot Block' but it didn't give me much to go on, so I'm still stuck. I've watched a few of the videos linked to boot block and also no joy there sadly.

**asprin624** · 28th April 2023, 12:57 PM

Just Tested the link and it is working OK

Here is just a snip-it of the link:

I have upgraded with the 3.3 update for my 705 recently and my device is misbehaving. From about the time of the upgrade the openmaps map that I have on the microSD card does not load 90% of the time (there are no progress bars on the screen during startup and only the base map is available. Oddly, occasionally it does load. If that was the only problem I would roll back to 3.1 and see if it works ok.

HOWEVER, of far more concern... Over the last week I've not connected my device to my computer. Now I try and it is not recognised (the device simply turns on, it doesn't go to USB mode. I had changed nothing on my computer (but have sinced tried reinstalling the Garmin USB drivers and upgrading Garmin Communicator. I've even tried it on another computer, but it is not working so I can't even roll back the upgrade.

**FixMyEdge** · 28th April 2023, 12:58 PM

As I said, your link is working, the link within the linked website is not - this one:

Website said:
If that does not work try the "Boot Block"
[Only registered and activated users can see links. ]

**frankmun** · 17th October 2023, 09:22 PM

1) Bricked device MODEL, Firmware version, HWID.
Garmin fenix 5 PLUS (Nno idea of the FW, probably latest)
edit:got him into preboot mode ID 2900

2) Why and how the device got bricked.
for no apperrent reason, when bricked I got a chanche to update and restore factory defaults but it's now completely bricked)

3) Symptoms: what's wrong in your device?
after a soft reset it hangs at the garmin display, saying garmin fenix 5 plus copyrigth etc

4) Does your pc sees your device ?
unfortunately not

5) List all the procedures you already tried to unbrick it and their results and errors messages obtained.
soft reset with top left button, tried one and both rigth buttons for hard reset. no beeps or effect. updated with garmin expres when responsive but got unresponsive again.

6) Do you have Garmin USB Drivers installed ?
Yes
7) If you don't know HWID get it by
could not get the watch in preboot mode
Edit got him in pre boot mode

8) Write down if you already read and tried everything in these two threads: tried it

9) Can you reach preboot mode? If no ,have you followed this?
edit:yes

10) Probably no , but do you have NV backup?
no

Thanks in advance

Frank

**Butters** · 18th October 2023, 12:18 AM

@frankmun
That's good that you've now found it can attain preboot. Preboot mode is essential for fixing devices which are 'bricked' (due to a corrupt file onboard) to be able to load cure firmware. Cure fw allows Mass Storage Mode to be re-enabled, allowing for bad files to be removed.

Your next move is to make cure fw and load it in preboot, so read this thread to learn how to do that: [Only registered and activated users can see links. ]. Hopefully your watch isn't one of the devices that can't use cure firmware.

Don't worry if the steps seem daunting, post back here if you need help in making and/or flashing the cure fw saying what you don't fully understand and what you've been able to do or not not do in the process. We'll assist you step by step if needed.

**frankmun** · 30th October 2023, 03:10 PM

Hi, i was not able to crate a cure FW however, garmin proposed me a new refurbised fenix 7 plus for a small service fee. so I send the Fenix te Garmin.

**askelly** · 27th December 2023, 04:51 PM

HELP REQUEST

1) Bricked device MODEL, Firmware version, HWID. Nuvi 1490LMT, firmware 6.3, HWID 972

2) Why and how the device got bricked.Using Garmin Express to update maps

3) Symptoms: what's wrong in your device?Looping Garmin Logo upon startup

4) Does your pc sees your device ? No

5) List all the procedures you already tried to unbrick it and their results and errors messages obtained. Using GarminCure3 software and procedures from here. I get to the Updater software where I get error "The Garmin device is unable to program the requested memory region"

6) Do you have Garmin USB Drivers installed ? Garmin: USB Drivers Updates & Downloads Yes - USB Drivers will appear in device manager - can successfully put into preboot mode

7) If you don't know HWID get it by Use program G7ToWin to retrieve your HWID - used G7toWin to get HW ID - it is 972

8) Write down if you already read and tried everything in these two threads: GarminCure3 tool - the new way to create cure firmwares for Garmin devices and How to unbrick a nüvi - step by step guide - Yes did this

9) Can you reach preboot mode? If no ,have you followed this? Garmin devices preboot mode - Yes can get into preboot

10) Probably no , but do you have NV backup? - No

11) Once you get a reply and a procedure to follow from our experts, please give an accurate reply about what you did and obtained results.