ERROR 401
LG TV & Audio · OLED65C3PUA 65" Class C3 4K OLED evo Smart TV
Digital Rights Management (DRM) validation failed. The TV cannot play protected content — DRM license expired, HDCP handshake failed, or DRM module corrupted. Restart the streaming app. Sign out and back in. Check HDMI cable for HDCP compliance if using external device. Update firmware. The Widevine DRM module may need re-provisioning — contact LG Support.
Error ERROR 401 on the LG TV & Audio OLED65C3PUA 65" Class C3 4K OLED evo Smart TV means: DRM Content Error. The top-ranked community fix is “Update Firmware and Re-provision Widevine DRM Module” (hard difficulty, ~45 min, DIY cost: $0). 2 community-ranked fixes available below.
Published February 2026 · 2 fixes · tv
Content is based on manufacturer service documentation, community repair experience, and OEM technical bulletins. Always verify with your owner's manual.Learn about our editorial standards.
While many tv repairs can be done safely at home, consider hiring a qualified technician if:
Average professional repair cost for this issue: $150-$220.
tv · 2 fixes
tv · 2 fixes
tv · 2 fixes
tv · 2 fixes
tv · 2 fixes
tv · 2 fixes
OLED Panel Over-Temperature
App Freezes or Crashes
Audio Out of Sync with Video
Horizontal or Vertical Banding
Power Supply Overcurrent / Short
Main Board Failure
Inverter / Backlight Driver Failure
T-CON Board Communication Error
The LG TV & Audio OLED65C3PUA 65" Class C3 4K OLED evo Smart TV has 8 other known error codes:
Error code ERROR 401 also appears on 6 other LG TV & Audio models:
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