Edge 840 restarted mid-ride

This was a problem with my 830. It seems to be a problem with my new 840 as well. Towards then end of a 45mi ride 840 turned off and restarted. It continued after reconnecting to all devices but any distance traveled was lost. I can provide the crash logs if that helps.

Top Replies

Gutty2400 5 months ago +4

Mine has done this same thing the last two rides over a few hours (right around the 3 hour mark). Anyone have a solution? Unless I missed it all I see in the thread is that it has happened to a few other…
NathanBerg 4 months ago +4

Same problem today right around 3:00. C’mon, Garmin! I don’t want to have to get a Wahoo, but I will!
Clockwoo 4 months ago in reply to Luko79 +4

Does Garmin look at these forum and take ownership of problems such as these? This would be considered a P1 issue in most tech companies and they would be working around the clock to fix.

All Replies

0 KarlFogarty 7 months ago

Mine keeps doing the same.

0 aweatherall 7 months ago in reply to KarlFogarty

Is there an err_log.txt in the Garmin\Debug folder

0 Masamalminen 6 months ago

Same here, shuts down during ride. Sometimes many times. I always restart manually asap and ride is there, but all distance is lost during restart. How to fix. Last year there was no problems, so is this fw related?? Very annoying

0 Luko79 6 months ago in reply to Masamalminen

i had the same mid-ride restart (took 2mins) when i pressed the page down button... (i pressed many times during the day without issue, it happened at 2h:55m) with fw

err_log.txt

[
{
"unit_id":"3441118302",
"product_name":"Edge 840",
"software_part_number":"006-B4062-00",
"ms_since_epoch":1714235002000,
"system_version":"21.09",
"build_type":"PRODUCTION",
"backtrace":"SYC main - Error type ( 0 ) File( ..\\..\\..\\FOC\\WBL\\power-manager\\wbl_power_manager.c ) Line( 574 )",
"error_cause":"Assert",
"proprietary_info":{
    "Commit ID":"9297b40c5a02c4465f4c3db930faba78a74346d4",
    "Time":"2024-4-27 18:23:22",
    "Ram Dump":"N/A",
    "ESht PC":"0x00000000",
    "ESht SP":"0x00000000",
    "Fatal":"NO",
    "Task ID":"629D38B0",
    "Task Name":"SYC main",
    "File Name":"..\\..\\..\\FOC\\WBL\\power-manager\\wbl_power_manager.c",
    "Line Number":"574",
    "Message":"Released 1"
    }
,
"Project Specific":{
    "data" : {

    }
}
},
{
"unit_id":"3441118302",
"product_name":"Edge 840",
"software_part_number":"006-B4062-00",
"ms_since_epoch":1714235003000,
"system_version":"21.09",
"build_type":"PRODUCTION",
"backtrace":"SYC main - Error type ( 0 ) File( ..\\..\\..\\FOC\\WBL\\power-manager\\wbl_power_manager.c ) Line( 574 )",
"error_cause":"Assert",
"proprietary_info":{
    "Commit ID":"9297b40c5a02c4465f4c3db930faba78a74346d4",
    "Time":"2024-4-27 18:23:23",
    "Ram Dump":"N/A",
    "ESht PC":"0x00000000",
    "ESht SP":"0x00000000",
    "Fatal":"NO",
    "Task ID":"629D38B0",
    "Task Name":"SYC main",
    "File Name":"..\\..\\..\\FOC\\WBL\\power-manager\\wbl_power_manager.c",
    "Line Number":"574",
    "Message":"Released 4"
    }
,
"Project Specific":{
    "data" : {

    }
}
},
{
"unit_id":"3441118302",
"product_name":"Edge 840",
"software_part_number":"006-B4062-00",
"ms_since_epoch":1714235003000,
"system_version":"21.09",
"build_type":"PRODUCTION",
"backtrace":"SYC main - Error type ( 0 ) File( ..\\..\\..\\FOC\\WBL\\power-manager\\wbl_power_manager.c ) Line( 574 )",
"error_cause":"Assert",
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    "Time":"2024-4-27 18:23:23",
    "Ram Dump":"N/A",
    "ESht PC":"0x00000000",
    "ESht SP":"0x00000000",
    "Fatal":"NO",
    "Task ID":"629D38B0",
    "Task Name":"SYC main",
    "File Name":"..\\..\\..\\FOC\\WBL\\power-manager\\wbl_power_manager.c",
    "Line Number":"574",
    "Message":"Released 5"
    }
,
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{
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"ms_since_epoch":1714235004000,
"system_version":"21.09",
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"backtrace":"SYC main - Error type ( 0 ) File( ..\\..\\..\\MNAND\\api\\mnand.c ) Line( 810 )",
"error_cause":"Assert",
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    "Time":"2024-4-27 18:23:24",
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    "ESht PC":"0x00000000",
    "ESht SP":"0x00000000",
    "Fatal":"NO",
    "Task ID":"629D38B0",
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    "Line Number":"810",
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}]

21.09

0 Luko79 6 months ago in reply to aweatherall

it is the error.bak, the previous is the error.txt. Phone BT was off, only the simple climbpro was active with Cat3 setting (no nav, no workout, nothing)

err_log2.txt

[
{
"unit_id":"3441118302",
"product_name":"Edge 840",
"software_part_number":"006-B4062-00",
"ms_since_epoch":1714233588000,
"system_version":"21.09",
"build_type":"PRODUCTION",
"backtrace":"HWM_alt - Error type ( 0 ) File( ..\\..\\..\\SNS\\iaq\\sns_impactDetect_iaq.cpp ) Line( 393 )",
"error_cause":"Assert",
"proprietary_info":{
    "Commit ID":"9297b40c5a02c4465f4c3db930faba78a74346d4",
    "Time":"2024-4-27 17:59:48",
    "Ram Dump":"N/A",
    "ESht PC":"0x00000000",
    "ESht SP":"0x00000000",
    "ui_page_ids":"531",
    "ui_page_stack_depth":"1",
    "Fatal":"NO",
    "Task ID":"624E42F8",
    "Task Name":"HWM_alt",
    "File Name":"..\\..\\..\\SNS\\iaq\\sns_impactDetect_iaq.cpp",
    "Line Number":"393",
    "Message":"393"
    }
,
"Project Specific":{
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    }
}
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"build_type":"PRODUCTION",
"backtrace":"HWM_alt - Error type ( 0 ) File( ..\\..\\..\\SNS\\iaq\\sns_impactDetect_iaq.cpp ) Line( 393 )",
"error_cause":"Assert",
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    "ESht PC":"0x00000000",
    "ESht SP":"0x00000000",
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    "ui_page_stack_depth":"1",
    "Fatal":"NO",
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    "File Name":"..\\..\\..\\SNS\\iaq\\sns_impactDetect_iaq.cpp",
    "Line Number":"393",
    "Message":"393"
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    "Line Number":"393",
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    "File Name":"..\\..\\..\\SNS\\iaq\\sns_impactDetect_iaq.cpp",
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0 Jaytie 6 months ago

I had the same error yesterday on my new Edge 840. Restarted during activity. Very annoying. Is Garmin aware of this error?

0 George 5 months ago

Do you have any ANT+ devices connected? I ask because the only time I've seen this was when my varia RTL 515 got itself into a weird state. I hard reset the light (not the Edge) and unpaired and repaired it and haven't had a crash since.

0 Jaytie 5 months ago in reply to George

Hi George,

I indeed have connected a Varia RTL 515 and a HRM Plus cheststrap.

I'll try to hard reset the light. Thank you!

0 Peter L. 5 months ago

same problem here. 840 restarted during ride / resp. during course recalculation. distance counter reset to zero.

0 mminjin 5 months ago

Mine has restarted two times in the past two weeks that I've noticed. Both of mine were around the two hour mark. In neither situation was I interacting with the device. I just happened to look down and noticed it was rebooting. Ride data was kept both times but I had to press start to get going again.

edit: my ANT devices are HRM Plus and power meter