If Larix Broadcaster stops sending a YouTube stream after you lock your Android phone, check Larix’s app-specific battery setting and any manufacturer sleeping-app controls first. Those restrictions can interrupt background work, but they are only one possible cause; network, data, app or stream configuration problems can look similar.
Start by noting when the interruption happens and which network you are using. Then change one relevant setting at a time and repeat a short test, so you can tell whether the change helped rather than assuming that a battery setting explains every drop.
When the stream stops after you lock the screen
The useful clue is the event that precedes the interruption. Does the stream stop as soon as the display goes dark, only after you switch to another app, or after it has been running for a while? Does it happen on Wi-Fi, mobile data, or both? These distinctions help narrow the checks without turning a single symptom into a diagnosis.
Before changing anything, write down your phone model, Android version, and, if applicable, Samsung One UI version. Note the Larix version if you can find it, whether Larix still appears open when you return to it, and roughly when the stream stopped. You do not need a formal log; a few notes are enough to compare attempts.
If you are sending a prerecorded video, confirm the basic setup separately from the background issue. The guide to sending a prerecorded video to YouTube Live with Larix on Android covers that workflow. A stream that never starts, or a stream key or ingest configuration problem, is different from one that begins and then stops after the phone is locked.
For a controlled check, start a short test stream, leave Larix running, and lock the screen without swiping the app away or force-closing it. Observe whether the broadcast stays live. Repeat on another network where practical. This is a troubleshooting procedure, not a guarantee that the same settings will behave alike on every handset.
What Larix says about background streaming
Softvelum’s Larix Broadcaster FAQ says background streaming on Android is available by default and that the app continues in the background until it is explicitly closed. That is a useful starting point: a screen lock alone is not described as a normal reason for Larix to stop. It does not, however, establish what is happening on your particular phone or prove that Android power management is responsible.
The phrase “Larix Broadcaster” can also hide differences in app edition, version and available options. Do not assume that a setting shown in instructions for one edition appears in every installation, or that a menu item has the same name across Android releases. Check the settings that are actually present in your app and system menus, and use the app’s current documentation when an option is unclear.
Android itself has several ways to limit background work. Its documentation explains that Doze can defer CPU and network activity while a device is idle, and App Standby can defer network access for apps that have not been used recently. Android also documents a Restricted state that can limit an app’s ability to run in the background. These are platform mechanisms, not a finding that any one of them stopped your Larix stream.
If you are deciding whether Larix is the right way to send a prerecorded loop, distinguish a phone-based workflow from a channel that must keep going independently of a handset. The practical differences between approaches are discussed in free software for a YouTube loop stream in India. This page, though, is about checking an Android stream that stops in the background, not choosing a replacement app.
Check Larix’s battery setting first
Open Android Settings and look for Apps, then Larix Broadcaster. The next screen may be called Battery, App battery usage, or something similar. Menu placement and labels depend on Android version and manufacturer; if the route is not visible, search Settings for “Larix” or “battery”.
If the system offers a choice such as Optimised, Restricted, or Unrestricted, note the current mode. For a troubleshooting test, you can select Unrestricted, or a similarly named option that allows background use, if it is available. Android describes unrestricted access as allowing more background work, with the trade-off of potentially higher battery use. Treat the change as a test, not a permanent instruction for every app.
Some phones offer a “Don’t optimise” setting rather than “Unrestricted”; others may use different wording or not expose the same controls. Read the description on your phone before changing it. The intent is to prevent the system from applying an extra battery restriction to Larix, not to disable all battery management on the device.
After changing the setting, run the same short test: start Larix, lock the screen, and watch the YouTube live status from another device if possible. Avoid changing the battery mode, data permissions and network all at once. If the test works, repeat it before drawing a conclusion; if it does not, restore the earlier setting if you do not want the additional battery use and move to the next check.
A phone that is expected to stream for long periods also needs a realistic power plan. Unrestricted background operation can use more battery, and a power bank may extend a mobile session if battery capacity is the limiting factor. It cannot prevent Android from suspending an app, restore a lost data connection, or correct an app or stream fault. Check that any charger or power bank is compatible with the phone before relying on it.
Look at Android background execution and data
Android’s background optimisation guidance and Doze and App Standby documentation explain why a phone may treat idle apps differently from an app currently in use. When the display is off and the device is idle, background network and CPU work can be deferred under certain conditions. This can be relevant to a stream, but it does not tell you that the system is the cause on your device.
Check whether Android lists Larix as Restricted or otherwise limited. If that state is available, remove the restriction for a test and repeat your controlled screen-lock check. Names and locations vary, so use Settings search rather than following a route that may belong to another Android version. Keep a note of what you changed and whether the timing of the stop changed.
If you stream over mobile data, check Larix’s background-data permission as well as the battery mode. Android may allow an app to use data in the foreground but restrict it when it is not on screen. Data Saver can also limit background cellular use unless an app is permitted. Google’s background-data and Data Saver help describes the relevant controls and notes that settings differ by Android version.
Look under Larix’s mobile data or data usage settings for background data. If Data Saver is on, find its unrestricted-data list and allow Larix for a test if your phone presents that option. This is chiefly relevant when the stream uses cellular data. Do not assume a mobile-data permission change will repair a stream that also stops on Wi-Fi.
Compare the networks without changing other settings between tests. If Larix works on Wi-Fi but stops on cellular data, focus on background-data permission, Data Saver and the mobile connection. If it stops on both, data saver becomes a less complete explanation, and you should continue with manufacturer controls and the non-battery checks below. Keep in mind that a network can fail for reasons that an app permission cannot fix.
Check manufacturer controls, especially on Samsung
Some Android manufacturers add their own background-management controls on top of Android’s settings. They may classify apps as sleeping, restrict their activity when not in use, or offer a separate list of apps that should remain available in the background. This is why a general Android battery change may not be the only setting worth checking.
On Samsung Galaxy phones, Samsung documents Sleeping apps and Deep sleeping apps, along with a Never sleeping apps list. Its published route includes Settings > Device care > Battery > Background usage limits, but routes and labels can differ between One UI and Android versions. Use Settings search for “sleeping apps” or “background usage limits” if those words are not in the expected place.
Check whether Larix is in Sleeping apps or Deep sleeping apps. If it is, remove it from those lists for a test; where appropriate, add it to Never sleeping apps. Samsung also directs users to the app’s Battery page and an Unrestricted mode in some troubleshooting instructions. Make one change at a time if you want to identify which control mattered.
Samsung’s guidance includes multiple menu routes for different system releases, so do not treat one path as universal. Its support guidance for apps stopping in the background is a useful reference for Galaxy devices, and its application-management notes describe Samsung background app management. Neither source guarantees a particular Larix version will stream continuously on every phone.
If you use a different manufacturer, look for equivalent app battery, background activity, or auto-start controls, but do not assume Samsung’s names or route apply. A phone maker’s support page for your model and Android release is a better guide than a menu path copied from another device. Avoid turning off broad system protections when a per-app exception is available.
Test other likely causes before blaming battery
Battery restrictions deserve attention when a stream stops around screen lock or after an app switch, but the timing is a clue rather than proof. A weak or changing network, a data restriction, a thermal condition, an app problem, or a stream-side issue can produce an interruption too. The available documentation does not diagnose a specific handset from the screen-lock symptom alone.
After the settings checks, repeat the test on Wi-Fi and cellular where practical. Record whether the stream ends immediately, after a delay, or at different times on different networks. Check whether Larix has been closed, whether the phone shows a data or temperature warning, and whether the YouTube live status indicates that the broadcast itself ended. These observations help separate app closure from a lost connection or an issue farther along the streaming path.
If the stream stops after an app update or a phone software update, record that as part of the timeline. Check that you are using the current supported Larix release and consult Softvelum’s support information if the problem persists. Do not infer that an update caused the issue solely because it happened around the same time; the note is there to give support a useful starting point.
For a planned test, an unlisted or test event can help you check the workflow without presenting the stream publicly. The steps in how to test a live stream without going public can help you plan that check. Keep the test short and observe from another device, since the phone running Larix may not make it easy to distinguish an app screen from the live broadcast status.
If the stream still fails, contact Larix support or your phone manufacturer with the model, Android and app versions, network type, the exact trigger, and what settings you tested. Include whether Larix remained open and whether the stop happened on both Wi-Fi and mobile data. Avoid jumping straight to a factory reset: it can remove data and is not a proportionate first step for a background-streaming fault.
When a phone is not the right always-on source
A phone is convenient when you need to start a stream quickly or broadcast while away from a desk. It also places the stream’s continuity alongside mobile battery, network coverage, screen and operating-system behaviour. If your requirement is simply to test a short session, resolving the relevant Larix setting may be enough. If you need a channel to continue while the phone is unavailable, the operating model matters as much as the setting.
For a recurring prerecorded loop, you could compare a phone workflow with a computer or cloud-based workflow. The guide to using a cloud radio playout service to broadcast on YouTube Live describes one class of alternative for scheduled audio programming. The right choice depends on whether you need live camera input, prerecorded video, audio programming, remote control, or the ability to change material during a broadcast.
StreamNeo can remove the specific burden of keeping a phone available for a prerecorded video stream: you upload the video once, provide your YouTube stream key, and the broadcast can continue with your computer switched off. It is YouTube-only, and it is not a fix for Larix’s Android settings or for a live camera feed that needs the phone. Compare the operating options and their trade-offs against the actual job your channel needs to do.
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
Why does Larix stop when my Android screen turns off?
Android can limit background activity through battery management, idle modes, manufacturer controls, or data settings, so those are sensible checks when a stream stops after screen lock. Larix’s FAQ says background streaming is available by default, however, and the symptom alone does not identify the cause. Compare the behaviour on different networks and note exactly when it stops.
Which battery mode should I try for Larix?
If your phone offers an Unrestricted or “Don’t optimise” mode for Larix, try it for a short, controlled test. The option may use more battery, and names vary by device and Android version. Change it for Larix rather than disabling battery management across the phone.
Should I put Larix in Samsung’s Never sleeping apps list?
If a Galaxy phone has placed Larix in Sleeping apps or Deep sleeping apps, removing it and testing is reasonable. You can also try Never sleeping apps if the list is available, while bearing in mind that Samsung’s menu path differs between software releases. This is a troubleshooting measure, not a promise of uninterrupted streaming.
What if Larix still stops after I change the settings?
Test Wi-Fi and cellular separately where practical, and check background-data access if cellular is involved. Record the device and app versions, stop timing, network, and settings you changed, then contact Larix or the phone maker. A battery-mode change cannot rule out network, app, thermal, or stream-side issues.