Hi,
I just discovered a file \GARMIN\DEBUG\USAGE.txt on my vivoactive 3, which obviously contains usage statistics written when starting to charge the device.
On my VA3 the 2 latest entries are:
-----------------------------------
2-17-2021 20:08:53 UTC
Software: 7.54
Time on since last charge: 4d:09:16:41 (379001 sec)
Time in low power: 4d:05:46:42 (366402 sec)
Time with backlight on: 00:19:43 (1183 sec)
Time with GPS on: 01:01:44 (3704 sec)
Time with OHR active scan on: 01:05:44 (3944 sec)
Time with ANT active scan on: 01:00:17 (3617 sec)
Time with BLE active scan on: 00:04:49 (289 sec)
Time with GCM connected: 3d:15:43:42 (315822 sec)
Time with NFC idle: 4d:09:14:35 (378875 sec)
Time with NFC wired: 00:00:00 (0 sec)
Time with NFC card enabled: 00:00:00 (0 sec)
Time with NFC BLE access: 00:02:06 (126 sec)
Time with NFC test: 00:00:00 (0 sec)
Device info when plugged in:
Battery drain: 99.888321% -> 19.945312%
Low battery message status: 0
Current backlight mode: 3
Current backlight brightness: 40%
-----------------------------------
2-23-2021 18:00:53 UTC
Software: 7.54
Time on since last charge: 3d:08:37:25 (290245 sec)
Time in low power: 3d:06:01:44 (280904 sec)
Time with backlight on: 00:20:03 (1203 sec)
Time with GPS on: 00:51:27 (3087 sec)
Time with OHR active scan on: 00:40:28 (2428 sec)
Time with ANT active scan on: 00:16:50 (1010 sec)
Time with BLE active scan on: 00:18:13 (1093 sec)
Time with GCM connected: 2d:22:51:27 (255087 sec)
Time with NFC idle: 3d:08:34:32 (290072 sec)
Time with NFC wired: 00:00:00 (0 sec)
Time with NFC card enabled: 00:01:19 (79 sec)
Time with NFC BLE access: 00:01:34 (94 sec)
Time with NFC test: 00:00:00 (0 sec)
Device info when plugged in:
Battery drain: 100.000000% -> 39.861328%
Low battery message status: 0
Current backlight mode: 3
Current backlight brightness: 40%
The file also contains earlier entries from software version 6.94 in year 2019, which also was a beta version.
Greetings, Josef
