Direct answer
Close unused apps, power-cycle the TV, remove apps you no longer use, and install the latest webOS update. Do not treat low memory as an invitation to repeatedly factory-reset the TV.
What this covers
- LG webOS TVs showing low-memory notices, slow app launches or repeated app closures
- Current supported consumer software as reviewed on August 20, 2026
- The symptom described in the title before a factory reset or hardware repair
What it does not cover
- ×USB storage capacity or a physically damaged main board
- ×Billing, ownership, warranty or account-recovery disputes
- ×Regional features that the manufacturer does not list for your country
Exit the current app and power-cycle
ReversibleClose the app, turn the TV off, disconnect power briefly and reconnect it to clear temporary memory.
Remove unused apps
Signs you outDelete apps you no longer use, starting with large games or rarely used streaming services. Keep credentials for any app you may reinstall.
Install the current TV update
ReversibleOpen Settings › Support › Software Update and install an available webOS release.
Escalate persistent low-memory behavior
ReversibleIf warnings return immediately with few apps installed, record the model and software version and contact LG support before a factory reset.
Evidence ledger
Sources behind this answer
Visible sources support the visible claims. Home Product Support records the publisher, the fact used and the review date; community reports can suggest an issue but do not become a published fact on their own.
Exact questions
Common follow-ups
What should I try first for lg tv shows a low-memory warning or closes apps?+
Close the app, turn the TV off, disconnect power briefly and reconnect it to clear temporary memory.
Will these steps erase apps, files or settings?+
The early checks are reversible. Deleting an app removes its local data and may sign it out. A power cycle and software update preserve apps.
When should I stop troubleshooting?+
Stop if the device reports hardware damage, becomes unusually hot, smells burnt, or the problem falls into this excluded case: USB storage capacity or a physically damaged main board.
Answer for the exact device and software version shown above.