1. Introdução
The Roku Express 4K 2022 is a streaming media player designed to deliver HD, 4K, and HDR content to your television. It provides smooth wireless streaming and comes with a simple remote for easy navigation. This manual provides instructions for setting up, operating, and maintaining your Roku Express 4K device.

Image 1.1: Roku Express 4K streaming device and its accompanying remote control.
2. O que está na caixa
Antes de começar, verifique se todos os itens estão presentes na embalagem:
- Reprodutor de streaming Roku Express 4K
- Roku Simple Remote with TV Controls
- Two AAA batteries for the remote
- Cabo de alimentação USB
- Adaptador de energia
- Cabo HDMI® de alta velocidade premium
- Removable adhesive strip (for mounting)

Image 2.1: Visual representation of the Roku Express 4K streaming player, remote, cables, power adapter, and batteries included in the product packaging.
3. Configuração
Follow these steps to set up your Roku Express 4K streaming media player:
- Connect the Roku Player: Plug one end of the Premium High Speed HDMI® Cable into the HDMI port on your Roku Express 4K player and the other end into an available HDMI port on your TV.
- Conecte a energia: Connect the USB Power Cable to the Roku player and then plug the Power Adapter into a wall outlet. Alternatively, you can plug the USB Power Cable directly into a USB port on your TV if available, ensuring it provides sufficient power.
- Insira as pilhas no controle remoto: Open the battery compartment on the back of the Roku remote and insert the two AAA batteries, matching the polarity indicators.
- Position the Player: For optimal remote performance, ensure the front of the Roku player has a clear line of sight to your remote. You can use the included removable adhesive strip to mount the player to your TV or a flat surface.
- Selecione entrada HDMI: Turn on your TV and use your TV remote to select the HDMI input that corresponds to the port where your Roku player is connected.
- Configuração na tela: Follow the on-screen instructions to connect your Roku player to your wireless network and activate your Roku account.

Image 3.1: The rear of the Roku Express 4K device, highlighting the HDMI, USB power, and reset button connections.

Image 3.2: The Roku Express 4K player positioned below a television, demonstrating a typical setup with connected cables.
4. Instruções de operação
Once set up, navigate your Roku Express 4K using the included remote control.
4.1 Funções de controle remoto
- Teclado direcional (cruz roxa): Use the up, down, left, and right arrows to navigate menus and select items. The 'OK' button in the center confirms selections.
- Botão Home: Returns you to the Roku home screen.
- Botão Voltar: Volta para a tela ou menu anterior.
- Botões de volume: Control the volume of your TV.
- Botão Mudo: Mutes or unmutes your TV audio.
- Botão de energia: Liga ou desliga sua TV.
- Replay instantâneo: Retrocede alguns segundos na reprodução do vídeo.
- Controles de reprodução: Play/Pause, Fast Forward, and Rewind buttons for media playback.
- Botões de atalho do aplicativo: Dedicated buttons for popular streaming services like Netflix, Disney+, Apple TV+, and Hulu for quick access.

Image 4.1: The Roku remote control, showing the directional pad, home, back, playback, and dedicated app shortcut buttons.
4.2 Navegando na interface do Roku
The Roku home screen displays your installed streaming channels. You can:
- Browse and launch channels.
- Access the Streaming Store to add new channels.
- Procurar movies, TV shows, actors, or directors across various channels.
- Adjust settings for your device, network, and display.

Image 4.2: The Roku user interface on a TV screen, featuring a selection of streaming applications and navigation options.
4.3 Compatibilidade
The Roku Express 4K is designed to integrate with various smart home ecosystems:
- Works with Apple AirPlay for casting content from Apple devices.
- Compatible with Apple Home for smart home integration.
- Compatível com Alexa para controle por voz.
- Compatible with Google Home for smart home integration.

Image 4.3: Icons illustrating the Roku Express 4K's compatibility with Apple AirPlay, Apple Home, Alexa, and Google Home.
5. Manutenção
To ensure the longevity and optimal performance of your Roku Express 4K:
- Mantenha o dispositivo em uma área bem ventilada para evitar superaquecimento.
- Clean the device and remote with a soft, dry cloth. Avoid liquid cleaners.
- Replace remote batteries when performance degrades.
- Ensure the device's software is up to date by checking the settings menu.
6. Solução De Problemas
If you encounter issues with your Roku Express 4K, try the following solutions:
6.1 Sem energia/Dispositivo não liga
- Verify the power adapter is securely plugged into a working wall outlet and the USB cable is firmly connected to the Roku player.
- If using a TV USB port for power, ensure it provides sufficient power (check your TV's manual). Try using the included wall adapter.
6.2 No Picture on TV
- Ensure the HDMI cable is securely connected to both the Roku player and your TV.
- Confirm your TV is set to the correct HDMI input.
- Experimente uma porta HDMI diferente na sua TV ou um cabo HDMI diferente.
6.3 Controle remoto não responde
- Substitua as pilhas do controle remoto.
- Ensure there are no obstructions between the remote and the Roku player.
- If the remote is paired via Wi-Fi Direct (some advanced Roku remotes), try re-pairing it by holding the pairing button inside the battery compartment.
6.4 Problemas de conexão de rede
- Reinicie o roteador e o modem sem fio.
- Vá para Configurações > Rede > Verificar conexão on your Roku device to diagnose the issue.
- Ensure your Roku device is within range of your wireless router.
6.5 Poor Picture Quality
- Ensure you are using the included Premium High Speed HDMI® Cable.
- Check your TV's display settings and the Roku's display settings (Configurações> Tipo de exibição) to ensure they are configured for 4K/HDR if your TV supports it.
- Verify your internet connection speed meets the requirements for 4K streaming.
7. Especificações
| Marca | Roku |
| Nome do modelo | Expressar |
| Número do modelo do item | 3940CA2 |
| Resolução | 4K, 720p |
| Recurso especial | Support Dual WiFi |
| Tecnologia de Conectividade | USB |
| Tipo de conector | HDMI |
| Peso do item | 1.6 onças |
| Dimensões do produto | 1.7 x 5.6 x 0.8 polegadas |
8. Garantia e Suporte
For warranty information and technical support, please refer to the official Roku website or the documentation included with your product. You can also visit the Roku support pages online for FAQs and troubleshooting guides.





