If Larix Broadcaster stops streaming on a OnePlus phone when the screen locks, first determine whether the app was closed, the stream disconnected, or OxygenOS restricted its background activity. Larix says Android background streaming is available by default until you explicitly close the app, but that intended behaviour is not a guarantee on every OnePlus device.
The practical fix is to check Larix and the live stream separately, then review the battery and background controls available on your phone. Change only the relevant restrictions, retest with the stream status visible, and note your device and software versions if the problem remains.
Start by identifying what stops
“Stops when the screen locks” can describe more than one failure. Larix may have been closed or stopped by the operating system; the app may still be open while its connection to YouTube has dropped; or the stream may continue even though the phone’s screen is dark and you can no longer see its status. Those cases call for different checks.
Before changing settings, run a short test with a video or stream you can afford to interrupt. Start Larix, begin streaming, and confirm that YouTube shows the broadcast as live. Lock the screen for a brief interval, then unlock it and inspect both Larix and YouTube. Record what you actually see rather than relying on the impression that the stream “stopped”.
For example, an app that has returned to its start screen may have been closed or restarted. An open Larix screen showing a lost connection suggests a stream disconnect, even if the app process remains. A live broadcast that continues on YouTube while the phone is locked points to a display or monitoring issue, not a stopped stream. This first distinction prevents you from changing battery settings when the cause is elsewhere.
Check the app and stream after locking
Repeat the test once or twice under the same conditions, keeping the test short and noting the time you lock and unlock the screen. Check whether the stream is still live on YouTube, whether Larix remains in its active streaming view, and whether it reports a connection problem. If you can, use another device or a browser to view the channel; checking only the locked phone cannot tell you whether viewers still receive the broadcast.
Do not treat a delayed preview or a brief pause in the picture as proof that Larix closed. A viewer’s playback can buffer, and YouTube’s live status may take a moment to reflect a change. Look for several signs together: Larix’s own connection or streaming state, the broadcast status in YouTube, and what the viewer device receives. The guide to enabling YouTube live streaming is useful if you need to confirm that the channel is set up to broadcast before diagnosing a phone-side problem.
If YouTube reports that the stream ended, note whether Larix was still open when you unlocked the phone. If Larix itself has disappeared or returned to its initial screen, focus first on whether it was closed and on the phone’s background controls. If Larix is still open but its connection is lost, keep that distinction in your notes: a background restriction is one possibility, but network or ingest trouble can also interrupt a live stream.
Make sure Larix was not explicitly closed
Softvelum’s Larix FAQ says Android background streaming is available by default and that the app works in the background until it is explicitly closed. In other words, simply turning off the display is not the same action as closing Larix. But a swipe-away, force-stop, crash, or device-level restriction can change what happens, so check how the app was left before assuming screen lock alone caused the failure.
Think back to the steps immediately before locking the phone. Did you press Android’s Back button until Larix exited, use an app-management screen to close it, choose Force stop in Settings, or use a device control that clears background apps? If so, repeat the test without taking that action. Leave Larix on its active streaming screen, lock the display normally, and then check the stream.
Also check whether a scheduled cleanup, game mode, battery tool, or other app-management feature is active on your phone. Do not disable unrelated features wholesale. First test Larix without using any close-all or cleanup command, then change only a setting you can connect to the app’s background behaviour. This makes the result easier to interpret and avoids weakening power management for every app.
Observe whether Larix remains active
The next question is whether Larix stays open while the screen is off. After unlocking, look for the same live session and its current status, rather than assuming that a notification or an app thumbnail proves a working broadcast. If Larix has been relaunched at its opening screen, or if the session has ended, make a note of that. If it remains in the streaming view but reports a disconnect, record that separately.
Android’s background-work restrictions documentation describes different background states, including unrestricted, optimised and restricted behaviour, and notes that manufacturer handling varies. A phone can therefore behave differently from another Android phone even when both run the same streaming app. The screen-lock symptom is a useful clue, but it does not by itself identify which system decision occurred.
You can use Android’s recent-apps view as one observation, not as a definitive test. If Larix appears there after unlocking, that does not prove its stream stayed connected while locked. If it is missing, that may indicate it was closed, but it does not establish who or what closed it. Combine what you see there with Larix’s current status and the broadcast status on YouTube.
If you need a stream that runs from a prepared video without keeping a phone app active, the 24/7 OBS setup guide for Windows 11 explains a different workflow. That is not a fix for Larix on OnePlus, and it may not suit a mobile, camera-based stream; it is relevant only if your actual goal is to broadcast a video loop rather than keep this phone session alive.
Review OnePlus battery and background controls
OnePlus documents battery usage and background-activity controls in its OxygenOS 14 user manual. The phone model and OxygenOS version matter: the manual describes OxygenOS 14, while your device may show different labels, locations or choices. Treat menu names below as examples, not universal instructions.
Open Settings and use its search function for terms such as “battery”, “app battery usage”, “background activity” or “optimisation”. Find Larix and inspect the controls your installed software provides. Where there is a choice to allow background activity or reduce battery restrictions for this app, try the less restrictive setting for Larix alone. If the search results or labels do not match, consult the current manual for your phone model rather than following an exact path written for another version.
Some phones or software versions may expose labels such as “Don’t optimise”, or allow an app to be kept in Recents. A third-party OnePlus troubleshooting article discusses such suggestions, but they should be treated as version-dependent rather than official steps that work on every device. Use them only if the same control exists on your phone and you understand what it changes. Avoid changing hidden or unrelated system settings based on a menu path for a different model.
Relaxing restrictions can make it easier for Larix to keep working in the background, but it can also increase battery use. OnePlus and Android describe the general connection between background activity and power consumption; neither source gives a Larix-specific battery figure. If you are testing on battery, watch the charge level and temperature, and do not assume a setting that helps continuity has no cost. For a long test, a stable power source may be sensible, but it will not resolve a network disconnect or guarantee that the operating system keeps the app active.
Retest while watching live status
After changing a Larix-specific background setting, repeat the same short test: start the stream, confirm it is live, lock the screen without explicitly closing the app, then unlock and check both Larix and YouTube. Change one setting at a time where possible. If you alter several controls together, a successful retest may be encouraging, but you will not know which change mattered or whether the original symptom was repeatable.
Keep the other test conditions as steady as you can. Use the same phone, network, stream destination and screen-lock method. If the first failure happened on mobile data, changing to Wi-Fi during the next test introduces another possible explanation. For longer-term channel reliability, connection quality needs its own checks: the Indian broadband guide for a stable 24/7 YouTube stream discusses the network side, which is separate from a phone’s battery policy.
If Larix stays open but the stream drops, note the connection message and whether the connection returns after unlocking. If the app is gone, note that too. If the broadcast stays live, check it from another device before concluding that the viewer experience is unaffected. A short test can help isolate the cause, but it cannot establish that a phone will behave the same way during an overnight broadcast.
Understand the limits of background streaming
Larix’s stated Android behaviour gives you a reasonable starting point: the app is meant to work in the background until explicitly closed. The phone’s power-management behaviour is a separate factor, and Android says manufacturer restrictions vary. A setting that helps on one OnePlus model or OxygenOS release may be absent or behave differently on another.
There is no universal OnePlus setting change that can be presented as a definitive fix from the available guidance. If the problem persists after checking whether Larix was closed and reviewing its background controls, preserve the details needed for proper follow-up: phone model, OxygenOS version, Larix version, network type, what Larix showed after unlocking, what YouTube showed, and whether you explicitly force-closed the app. Those observations help distinguish an app closure from a stream disconnect or a device restriction.
For a channel that must run unattended, consider whether a phone app is the right operating arrangement for the job. A mobile stream can be practical when you need a phone camera or a portable setup, but it still depends on that handset, its power settings and its connection. A pre-recorded loop has different requirements; the guide to using an HLS playlist as a YouTube Live source covers another approach, though it is not interchangeable with a live camera feed.
When the particular pain is keeping a prepared video broadcast running without leaving your computer on, StreamNeo turns an uploaded video into a YouTube live stream, so that specific job does not depend on keeping Larix active on a locked phone. It is YouTube-only and does not solve a live phone-camera stream or remove the need to prepare the channel and source file.
Before committing, compare the operating options on the pricing page. When the file and channel are ready, start free — 24-hour trial, no card.
FAQ
Does Larix Broadcaster support background streaming on Android?
Softvelum says Android background streaming is available by default until the app is explicitly closed. That describes Larix’s intended behaviour, not a promise that every OnePlus device will keep a stream running indefinitely. Check both the app and the live broadcast after locking the screen.
Should I change OnePlus battery settings for Larix?
Review the battery and background controls available on your specific phone, and try a less restrictive choice for Larix if your OxygenOS version offers one. Menu names and paths vary, so use Settings search or the manual for your model. Less restriction may increase battery use.
What if Larix is still open but YouTube says the stream ended?
That points to a stream disconnect rather than proof that Larix was closed. Note Larix’s connection state, YouTube’s status and your network conditions, then retest without changing several variables at once. A background restriction is possible, but the symptom alone does not establish it.
What details should I provide if it still stops?
Record your OnePlus model, OxygenOS version, Larix version, network type and the exact state of Larix and YouTube after unlocking. Also say whether you explicitly closed or force-stopped Larix. These details help separate an app closure, a connection failure and device-level background management.