Samsung Galaxy phones run Android, but One UI adds its own battery and sleeping-app controls. When a tracker works perfectly on screen and then becomes quiet in a pocket, check both Android location permission and Samsung power management.
Open the app information page for your tracker and inspect its location permission. A continuous route tracker may need precise location and, depending on its design, background access.
If precise location is disabled, changing battery settings will not restore precise GPS data. Solve permissions before power management.
One UI can put applications to sleep or deep sleep, and battery settings can restrict background activity. The exact menu wording moves between One UI versions, so search Settings for terms such as sleeping apps, background usage limits and battery.
For a tracker you deliberately want to keep active, make sure it is not in a deep-sleep category that prevents the required background behavior.
The goal is not to turn off Android's power management for the entire phone. Adjust the specific tracker only as far as needed for its documented functionality.
Broadly disabling protections can increase battery use and allow unrelated apps to run more often in the background.
A real movement test is more useful than assuming a toggle solved the problem.
LocationOf uses Android's location and foreground/background mechanisms; it does not require a secret Samsung-specific GPS mode. The common Samsung problem is the operating system deciding that an app may sleep more aggressively than the tracking use case allows.
Also read Android background location explained and battery optimization for GPS tracking.
If updates stop after the phone has been unused for several hours rather than immediately after screen-off, inspect Samsung's sleeping-app categories. If updates stop as soon as the screen locks, revisit the app's permission and foreground-service state first. Different failure timings often point toward different controls.
After a One UI update, recheck the settings you rely on. Manufacturers occasionally reorganize battery menus or reset behavior during major operating-system upgrades. A tracker that worked for months can therefore deserve a fresh test after a major update.
Do not use 'Keep open' or similar task-switcher tricks as your only reliability strategy. A properly designed tracker should rely on supported Android mechanisms; manufacturer settings should complement that design, not replace it.
If tracking stops immediately when the screen locks, revisit location permission and the foreground service first. If it works for a while but disappears after the phone has been idle for hours, Samsung's sleeping-app and background-usage controls become more likely suspects. If tracking survives screen-off but does not resume after a reboot, test startup behavior separately.
This symptom-based approach is more useful than enabling every permissive setting on the phone. It also lets you retain Samsung's normal battery protections for unrelated applications.
Samsung occasionally reorganizes battery menus and background behavior between One UI releases. After a major system update, repeat a short screen-off journey and confirm that LocationOf still records the way you expect.
Do not rely solely on task-switcher tricks such as manually keeping an app card open. A properly designed tracker should use Android's supported long-running mechanisms; Samsung-specific settings should complement those mechanisms rather than substitute for them.
If LocationOf continues producing fresh timestamps but the points are inaccurate, changing Samsung sleep settings is unlikely to fix satellite reception. Move outdoors, check precise location and inspect accuracy. Battery restrictions are the stronger suspect when updates stop altogether or arrive only after the app is reopened.