[FAQ] Help, LapTimer doesn't start up!

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Harry
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[FAQ] Help, LapTimer doesn't start up!

Post by Harry »

The most frequent issue causing a crash on startup is some corruption of LapTimer's database.
This corruption can occur when a device overheats, runs out of battery, crashes for some other reason.
As a result, LapTimer fails to open or access data or other configuration and runs into an unexpected condition.

The first rule in case this happens: do not try the uninstall / reinstall approach. LapTimer stores data locally, deleting the app will purge that data (and videos) too.

Instead, a so called emergency startup needs to be triggered.
  • On iOS, goto Settings app and find LapTimer. Navigate to Expert Settings and set "Emergency Startup" to ON. Both items are (almost) in the bottom of the respective screen.
  • On Android, settings cannot be accessed while the app is not running. Instead, open this URL on your smartphone: http://gps-laptimer.de/laptimer/emergencystartup Whether opening this link fires up LapTimer or Chrome or show a selection, depends on your device configuration. In case Chrome is coming up immediately (with a 404 message), you need to enable the link for LapTimer first: on Android 12, goto Settings app ‣ Apps ‣ Default Apps ‣ Opening Links ‣ LapTimer. Tick "Open supported links" and add "gps-laptimer.de" to the list in the bottom. For other Android versions, navigation may differ. Once your link has been opened by LapTimer, you will see the startup screen and a black screen when closing it. Swipe the app upwards in this case.
The next time LapTimer is started, it will find the Emergency Startup flagging and reset the database to the demo database. LapTimer should be able to complete the startup now.

To recover your data, follow instructions in [HOWTO] Restoring Automatic Backups

- Harry
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