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

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