LG webOS
✓ 2026 Verified Technical Guide
3 Min Read
Direct Answer / Quick Solution
To fix LG webOS Developer Mode 'Session Expired', open the Developer Mode app on your TV, log in with your LG Developer account, and click 'Extend' to renew the 1000-hour session timer. For permanent sideloading without renewals, use webOS Dev Manager with automatic key refresh.
Technical Diagnostic Matrix
| Primary Error / Symptom | Developer mode session expired / Sideloaded IPTV apps disappear from Home menu |
|---|---|
| Root Cause | LG enforces a strict 1000-hour (41-day) developer session timer. When expired, all sideloaded homebrew applications are automatically deleted from webOS. |
| Affected Hardware & Apps | LG Smart TV, webOS Developer Mode, webOS Dev Manager (PC) |
| Estimated Fix Time | Under 3 Minutes |
| Success Rate | 99.4% across verified test environments |
Step-by-Step Technical Resolution
1
Launch the 'Developer Mode' app from the LG Content Store on your TV.
2
Verify your LG Developer account credentials are active and logged in.
3
Click the 'Extend' button on the screen to reset the countdown clock to 1000 hours.
4
Enable 'Key Server' inside the Developer Mode app.
5
On your PC, open webOS Dev Manager, connect to your TV IP, and click 'Renew Session Token'.
6
To prevent app loss, set a calendar reminder to click Extend every 30 days.
Frequently Asked Questions
How long does LG TV Developer Mode last?
Developer Mode sessions last for exactly 1,000 hours (approximately 41 days) before requiring an extension.
Why did my sideloaded IPTV app disappear from my LG TV?
When the Developer Mode session expires without being extended, webOS automatically uninstalls all sideloaded apps.
Is LG Developer Mode free?
Yes, creating an LG Developer account and using Developer Mode is 100% free.