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Garmin 920xt Bricked after last firmware update!?

Former Member over 10 years ago

After updating the watch via the new Connect tool my watch is now in an endless reboot loop where it shows the garmin logo for some time (15s?) Then beeps and reboots. I have tried holding down power for 15s and it will turn off. Turning it back on resumes this boot/reboot state. I can't get past the garmin logo. HELP!!!

Christian Oestreich

0 Former Member over 10 years ago

Finally got it to mount on USB. The error text is 30k lines here is a snippet.

1765 (Forerunner 920XT) SW ver: 320
Build Type: RELEASE
ESN: 3895162422
Battery Voltage: 4.192000V
04/17/15 13:40:21
BF
PC: 0x000E7366*
LR: 0x000E7B07
SP: 0x1FFF87E0
CFSR: 0x00000400
Return Address (LR): 0x000FFAE5:Call Stack - PSP at 0x1FFF87C0:
0x000E7B07
0x000E3369
0x000E5309
0x000F037F
0x000E7D5D
0x000F037F
0x000F037F
0x0000C001
0x000E7ED3
0x000FAB57
0x00002361
0x00004099
0x000ECA75
0x00005A4B
0x000ECBAB
0x000CD5D5
0x000112F9
0x0006000B
0x00011481
0x0000FFFF
HWM_usb_connected = 0x00. HWM_usb_mode = 0x01.
SMB config: cfg_start[0]=0x00, cfg_start[1]=0x02, cfg_start[2]=0x06.
page addr = 0x0003F935
Uptime: 21984

1765 (Forerunner 920XT) SW ver: 320
Build Type: RELEASE
ESN: 3895162422
Battery Voltage: 4.123000V
04/17/15 13:40:49
BF
PC: 0x000E7366*
LR: 0x000E7B07
SP: 0x1FFF87E0
CFSR: 0x00000400
Return Address (LR): 0x000FFAE5:Call Stack - PSP at 0x1FFF87C0:
0x000E7B07
0x000E3369
0x000E5309
0x000F037F
0x000E7D5D
0x000F037F
0x000F037F
0x0000C001
0x000E7ED3
0x000FAB57
0x00002361
0x00004099
0x000ECA75
0x00005A4B
0x000ECBAB
0x000CD5D5
0x000112F9
0x0006000B
0x00011481
0x0000FFFF
HWM_usb_connected = 0x00. HWM_usb_mode = 0x01.
SMB config: cfg_start[0]=0x00, cfg_start[1]=0x02, cfg_start[2]=0x06.
page addr = 0x0003F935
Uptime: 21695

1765 (Forerunner 920XT) SW ver: 320
Build Type: RELEASE
ESN: 3895162422
Battery Voltage: 4.127000V
04/17/15 13:41:16
BF
PC: 0x000E7366*
LR: 0x000E7B07
SP: 0x1FFF87E0
CFSR: 0x00000400
Return Address (LR): 0x000FFAE5:Call Stack - PSP at 0x1FFF87C0:
0x000E7B07
0x000E3369
0x000E5309
0x000F037F
0x000E7D5D
0x000F037F
0x000F037F
0x0000C001
0x000E7ED3
0x000FAB57
0x00002361
0x00004099
0x000ECA75
0x00005A4B
0x000ECBAB
0x000CD5D5
0x000112F9
0x0006000B
0x00011481
0x0000FFFF
HWM_usb_connected = 0x00. HWM_usb_mode = 0x01.
SMB config: cfg_start[0]=0x00, cfg_start[1]=0x02, cfg_start[2]=0x06.
page addr = 0x0003F935
Uptime: 21734

0 ANDREASCLA over 10 years ago

I have the same problem, also running Mac. What did you do to finally get it to mount??

/Andreas

0 Dugiflopper over 10 years ago

Sometimes when you turn on your Garmin device, it will be processing an update or new course files that may have been added. This takes time, sometimes well over a couple minutes. For what ever reason, Garmin chooses not to display a "splash" screen letting you know this is happening so the net result to the user is that you think it's doing nothing. So patience is key, just wait it out.

If however you've interrupted this process several times, you may just need to do a hard reset or possibly rebuild the file system and then let it try to update again.

I'm not saying that is the issue with your devices, but it might be.

0 ANDREASCLA over 10 years ago

Thanks, but I can't even get it to mount :( Is there any way to rebuild the file system or get in contact with the watch from the computer? I have tried hard reset (hold down up- and down-button, start, release up, release down) but it doesn't work. Typically the watch starts, shows the Garmin splash screen for 10s and then reboots and does the same thing again, over and over... :(

0 Dugiflopper over 10 years ago

Is there any way to rebuild the file system or get in contact with the watch from the computer?

I don't use any of the Garmin Forerunners or any of their other 'watches'. I'd suggest one or all of three things:
1) ask over in the sub-forum for your device. There you'll find people with specific knowledge of it and it's peculiarities.
2) search the Garmin Support sites FAQ's.
3) call Garmin Support. Even if your device is out of warranty, they will still give you assistance over the phone.

0 ANDREASCLA over 9 years ago

Thanks for the suggestions, I have sent my watch to Garmin now :)

/Andreas

0 Former Member over 9 years ago

I was finally able to get it to come back to the main screen. Now, however, no connect iq apps will sync to the watch.