User's Manual

User Manual
Confidential Page: 2 of 6
1. Products Functions
The RC421 remote connects via Radio Frequency for Consumer Electronics(RF4CE) or Bluetooth
Low Energy (BLE) to LGI set-top box, which has Nuance voice enabled. This connection is needed
to control all essential features that LGI offers, including browsing content, playing videos, and
conducting voice searches. RF4CE/BLE are also used for over-the-air firmware upgrades as well as
the download of TV control codes.
The remote further includes infrared (IR), used for the one-time initiation of the BLE connection,
as well as volume and power control of third-party non-Bluetooth TVs.
2. Product Summary
• Include 38 Keys (RC4213802) and 34 Keys (RC4213404, RC4213405 & RC4213406 remotes;
• Bi-colour (Red/White) LED Indicator;