Introduction
The NEUMI Atom 4K is a versatile digital media player designed to play video, photo, and music files from USB drives and SD cards on any television, supporting up to 4K Ultra-HD quality. Its intuitive interface and automatic playback features simplify media consumption.
This manual provides comprehensive instructions for setting up, operating, and maintaining your Atom 4K media player, along with troubleshooting tips and product specifications.
What's in the Box
- NEUMI Atom 4K Media Player
- Remote Control
- A/V Cable (RCA)
- AC Power Adapter
- User's Manual (this document)

Image: The NEUMI Atom 4K media player unit shown alongside its included remote control.
Product Overview
The Atom 4K is designed for ease of use and high-quality media playback. It supports a wide range of media formats and offers flexible connectivity options.
Key Features
- 4K Ultra-HD Playback: Supports video playback up to 2160p/60Hz resolution via HDMI.
- Wide Media Compatibility: Plays video, photo, and music files from USB drives (up to 4TB) and SD cards (up to 512GB).
- Advanced Codec Support: Includes support for H.265/HEVC, H.264/AVC, VC1, and MPEG2/4 codecs.
- Automatic Playback & Resume: Configurable to automatically play media upon startup and resume playback from the last watched point.
- Dual Output Options: Features HDMI for modern TVs and analog AV output for older televisions or stereo systems.
- Compact Design: Small footprint for easy integration into any entertainment setup.

Image: The NEUMI Atom 4K demonstrating its compact size and connectivity with a USB drive and Micro SD card inserted.

Image: An illustration of the Atom 4K providing a high-quality audio-visual experience on a television.

Image: A visual comparison highlighting the enhanced video quality provided by H.265/HEVC codec support.
Setup Guide
Follow these steps to connect your NEUMI Atom 4K media player to your television.
Connecting the Player
- Choose your connection type:
- HDMI (Recommended for 4K/HD TVs): Connect one end of an HDMI cable (not included) to the HDMI OUT port on the Atom 4K and the other end to an HDMI input on your TV.
- Analog AV (For older TVs): Connect the included A/V cable to the AV OUT port on the Atom 4K. Match the yellow, white, and red connectors to the corresponding input jacks on your TV.
- Connect Power: Plug the AC power adapter into the DC 5V/2A port on the Atom 4K, then plug the adapter into a wall outlet. The device will power on automatically.
- Select TV Input: On your television, select the correct input source (e.g., HDMI 1, AV) that corresponds to where you connected the Atom 4K.
- Insert Media: Insert your USB drive into one of the USB ports or your SD card into the SD card slot on the Atom 4K.

Image: Detailed view of the NEUMI Atom 4K's interface configuration, including USB ports, SD card slot, HDMI output, AV output, and power jack.
Operating Instructions
Once connected, use the included remote control to navigate the Atom 4K's interface and play your media.
Remote Control Functions
- Power Button: Turns the player on or off.
- Navigation Buttons (Up, Down, Left, Right): Move through menus and file lists.
- OK Button: Selects an item or confirms an action. Also functions as Play/Pause during media playback.
- Back/Return Button: Returns to the previous menu or screen.
- Home Button: Returns to the main menu.
- Menu Button: Accesses context-sensitive options during playback or in menus.
- Volume Buttons: Adjusts audio volume.
- Fast Forward/Rewind: Skips forward or backward during video playback.
Media Playback
- From the main menu, select the type of media you wish to play (e.g., Video, Photo, Music).
- Navigate through your connected USB drive or SD card to locate the desired file or folder.
- Press the OK button to select and play the file.
- During playback, use the remote control buttons for play/pause, fast forward/rewind, and volume control.
Automatic Playback and Looping
The Atom 4K features automatic playback capabilities, ideal for digital signage or continuous media display.
- Automatic Playback: In the settings menu, you can enable automatic playback. When enabled, the player will automatically detect and play media files from the connected storage device upon startup without user intervention.
- Resume Playback: The device can remember the last playback position for videos and resume from that point when the video is selected again.
- Looping: Configure the player to continuously loop a single file or all files within a folder for continuous playback.
Media Format Support
The NEUMI Atom 4K supports a wide array of media formats:

Image: Visual representation of supported media file types including MP4, MKV, JPG, PNG, MP3, and more.
Video Formats
- Container Files: MP4, MKV, AVI, TS/TP, MOV, VOB, M2TS.
- Codecs: H.265/HEVC, H.264/AVC, VC1, MPEG2/4.
- Resolution: Up to 4096x2304p @ 60fps, 10-bit color, and 250mbps.
Photo Formats
- JPG, JPEG, BMP, GIF (non-animated), PNG.
Music Formats
- MP3, WMA, OGG, FLAC, APE, AAC.
Maintenance
To ensure the longevity and optimal performance of your NEUMI Atom 4K, follow these maintenance guidelines:
- Cleaning: Use a soft, dry cloth to clean the exterior of the device. Do not use liquid cleaners or aerosols.
- Ventilation: Ensure the device is placed in a well-ventilated area. Do not block any ventilation openings.
- Temperature: Avoid exposing the device to extreme temperatures or direct sunlight.
- Storage: When not in use for extended periods, disconnect the power adapter and store the device in a cool, dry place.
- Firmware Updates: Periodically check the NEUMITECH website for available firmware updates to ensure compatibility and performance improvements. Follow the instructions provided with the firmware update carefully.
Troubleshooting
If you encounter issues with your NEUMI Atom 4K, refer to the following common problems and solutions:
| Problem | Possible Cause | Solution |
|---|---|---|
| No power/Device not turning on. | Power adapter not connected properly; Power outlet issue. | Ensure power adapter is securely connected to the device and a working power outlet. Try a different outlet. |
| No picture/sound on TV. | Incorrect TV input selected; Loose HDMI/AV cable; Incompatible media format. | Verify TV input matches the connection (e.g., HDMI 1, AV). Check all cable connections. Ensure media file format is supported. |
| Remote control not working. | Batteries are dead or inserted incorrectly; Obstruction between remote and player; Remote not pointed at IR receiver. | Replace batteries. Ensure clear line of sight to the player's IR receiver. Point the remote directly at the front of the player. |
| Media files not recognized. | Unsupported file system on USB/SD; Corrupted media files; Unsupported media format. | Ensure USB drive/SD card is formatted to FAT32, exFAT, or NTFS. Check if files are corrupted. Verify media format is listed in supported formats. |
| Video playback is choppy or freezes. | High bitrate video; Corrupted file; Slow USB/SD card. | Try a different media file. Ensure your USB drive or SD card has sufficient read speed. Consider re-encoding very high bitrate videos. |
Specifications
| Feature | Detail |
|---|---|
| Model Name | Atom 4K |
| Dimensions (L x W x H) | 3 x 2.6 x 0.6 inches (7.6 x 6.6 x 1.5 cm) |
| Weight | 10.6 ounces (300 grams) |
| Color | Black |
| Video Output | HDMI (up to 4K/60fps), Analog AV (RCA) |
| Audio Output | HDMI, Analog AV (Stereo) |
| USB Ports | 2 x USB 2.0 (Supports drives up to 4TB) |
| Card Reader | SD Card Slot (Supports cards up to 512GB) |
| Supported File Systems | FAT32, exFAT, NTFS |
| Power Supply | DC 5V/2A |
| Special Features | Automatic Playback, Resume Playback, Looping Capability |
Warranty and Support
NEUMITECH products are designed for reliability and performance. For warranty information and technical support, please refer to the official NEUMITECH website or contact their customer service directly.
Please visit www.neumitech.com for the latest support resources, FAQs, and contact information.





