Introduction
The XTEINK X4 is an ultrathin, portable e-book reader designed for a pure reading experience. It features a 4.3-inch ink screen, strong magnetic attachment capabilities, and a long-lasting battery, making it ideal for fragmented reading, commuting, and casual use.
The XTEINK X4 E-Book Reader, shown attached to a smartphone case.
Demonstration of the XTEINK X4's portability, fitting easily into a pocket.
Key Advantages:
- High-Quality Screen: Creamy white screen with medium to high resolution (220ppi, 800x480), offering superior display quality.
- Ultimate Slimness: Weighing only 74g and 5.9mm thick, it's ultra-portable without compromising body strength.
- Advanced Technology: Features etched glass, OCA full lamination, paper-like texture, all-metal buttons, sandblasted anodized back panel, and UV matte spray frame.
- Excellent Afterimage Control: Minimizes afterimages, with residual images only appearing in inverse color or sleep shutdown modes, easily fixed by refreshing.
- Long Battery Life: The 650mAh battery provides 3-4 days of use on a single charge with fragmented reading habits.
- Fragmented Reading: Strong magnetic suction allows attachment to phones, walls, backpacks, or clothing for convenient reading anytime, anywhere.
Setup Guide
Package Contents:
Upon unboxing, you should find the XTEINK X4 E-Book Reader along with the following accessories:
- Two magnetic induction sheets
- 32GB SD card
- SD card reader
- One PET matte film
- One lanyard
Charging the Device:
The XTEINK X4 is equipped with a Type-C charging port. Connect the device to a power source using a compatible Type-C cable (charging only).
Power On/Off and Button Functions:
Familiarize yourself with the device's physical buttons for navigation and control.
Button layout and port locations on the XTEINK X4 E-Book Reader.
- Power Button: Located on the top right side. A short press will power the device on or off.
- Previous Page Button: Located on the right side.
- Next Page Button: Located on the right side.
- TF Card Slot: Located at the bottom for expandable storage.
- RESET: A small reset button is located at the bottom.
- Bottom Buttons (Customizable): The four buttons at the bottom can be customized for 'Back', 'Confirm', 'Previous page', and 'Next page' functions.
Wi-Fi Connection Setup:
To ensure stable Wi-Fi connectivity, especially when using a phone's hotspot:
- Change your phone's hotspot name to 'XT-EPD'.
- Set the hotspot password to '12345678'.
- Enable hotspot mode on your phone.
- If using an iPhone, ensure 'compatibility mode' is turned on.
- If using an Android phone, set the Wi-Fi band to 2.4GHz for the most stable connection.
Installing Custom Fonts:
You can change and adjust the font size by placing the desired font '.bin' files into the TF card. Refer to the provided tutorial for detailed instructions.
Operating Instructions
Reading Files:
The XTEINK X4 supports fully encoded EPUB and TXT formats for pure reading purposes. Note that images within EPUB files may not display.
A hand holding the XTEINK X4, showing its user interface with icons for reading, files, settings, and network/transfer.
Page Turning:
You can turn pages using the physical 'Previous Page' and 'Next Page' buttons on the side of the device. The customizable bottom buttons can also be configured for page turning. A Bluetooth page turner is also supported, though compatibility with third-party devices may vary.
Magnetic Attachment:
Leverage the strong magnetic attraction feature of the X4. You can attach it to the back of your phone or phone case, or use the included magnetic induction sheets to attach it to other surfaces like walls, backpacks, or clothing for convenient, hands-free reading.
The XTEINK X4 E-Book Reader shown attached to a phone and as a standalone device.
Lock Screen Wallpaper:
You can set custom lock screen wallpapers. The device supports BMP and most JPG image formats (JPEG is not supported). Wallpapers can be set online.
Wi-Fi Book Transfer:
The device supports Wi-Fi transfer of books. Please note that the transfer speed is approximately 30 seconds for a 10MB file. For faster transfers, use the included SD card and card reader.
Maintenance
Cleaning the Screen:
To clean the e-ink screen, gently wipe it with a soft, dry, lint-free cloth. Avoid using liquid cleaners or abrasive materials, as these can damage the screen surface.
Battery Care:
The XTEINK X4 features a 650mAh battery designed for long-lasting performance. To maximize battery life:
- Avoid fully discharging the battery frequently.
- Store the device in a cool, dry place when not in use for extended periods.
- Charge the device regularly, even if not fully depleted.
Troubleshooting
This section addresses common issues and provides solutions for your XTEINK X4 E-Book Reader.
Table summarizing known issues and their solutions for the XTEINK X4.
System Speed:
The X4 uses an ultra-low power platform for a high-resolution screen, prioritizing lightweight design and long battery life. This may result in slightly slower system speed. Normal reading is unaffected, but rapid, repeated button presses may only execute the first command. This is normal behavior for the device's design.
Slow Wi-Fi Connection:
The device's super low-power Wi-Fi module may lead to network connection issues. For optimal performance, ensure your phone's hotspot is configured as described in the Setup Guide (name 'XT-EPD', password '12345678', iPhone compatibility mode, Android 2.4GHz band). It is also recommended to upgrade the device firmware as quickly as possible after receiving it.
Potential Freezing:
While most known issues have been addressed, if you encounter freezing:
- First, press the RESET key.
- Then, press the POWER key to restart the device.
- If the problem persists and can be reproduced, take photos and record videos, then report to customer service.
- If a book frequently causes freezing, try rebuilding the index first.
Bluetooth Page Turner Issues:
The Bluetooth page turner function is generally complete. However, many third-party Bluetooth page turners may connect but fail to turn pages or disconnect. For best results, consider using a dedicated page turner customized for the X4, as third-party devices often use low-power chips that may not be fully compatible.
Ghosting:
Ghosting (residual images) may appear in inverse color or sleep shutdown modes. A screen refresh will typically resolve this issue.
Text Fades Under Strong Light:
This is a known characteristic of the e-ink screen and not a defect. It recovers after refreshing and does not damage the device. This is attributed to low-power chips reducing the efficiency of ink particle movement under strong light. Research is ongoing to improve this.
EPUB Format Issues:
Due to the wide variation in EPUB formats, some books may experience issues such as failing to open, freezing, formatting problems, or displaying strange characters. Try rebuilding the index or searching for new resources. If the problem persists, contact customer service with the problematic book file. Images in EPUB files may not display.
Mac File Copy Issues:
When copying books from an Apple computer, files starting with "." may be generated. This is a normal behavior of macOS. These files can be bulk deleted by adjusting the "Clear Cache" setting on your Mac.
Full Refresh Behavior:
During use, the screen will go black for a moment approximately every 30 pages. This is a normal phenomenon for e-ink screens to perform a full refresh intermittently to maintain display quality.
Specifications
Detailed parameters and features of the XTEINK X4 E-Book Reader.
| Feature | Description |
|---|---|
| Product Model | Yuexing Tong X4 |
| Size | 4.3 inches (114mm length, 69mm width) |
| Color | Dark night black / Rice paper |
| Thickness | 5.9mm |
| Weight | 74g |
| Memory | 32GB |
| Battery | 650mAh, approximately one week of fragmented usage |
| Backlight | No backlight (magnetic attraction lamp may be introduced) |
| Touch Screen | No touch screen (physical buttons for navigation) |
| Outer Screen | Etched glass, ultra-narrow bezel, ultra-thin high transparency, high aluminum silicon glass, OCA full lamination, free PET original matte film |
| Inner Screen | 220ppi, 800x480 resolution |
| Middle Frame | ABS plastic + matte frosted spray paint |
| Buttons | Full metal buttons, sandblasted anodized (Power, Previous, Next, Reset, Back, Confirm) |
| File Formats | Fully encoded EPUB (images may not display), TXT (UTF-8 and GBK encodings) |
| Data Transmission | SD card storage (32GB card and reader included), Wi-Fi transfer (slower) |
| Connectivity | Low power Wi-Fi and Bluetooth (weak performance) |
| Magnetic Feature | Strong magnetic attraction for attaching to various surfaces |
| Charging Port | Type-C (charging only) |
| Lock Screen Wallpaper | Supports BMP and most JPG (JPEG not supported), set online |
| Wi-Fi Book Function | Available (speed approx. 30 seconds per 10MB) |
User Tips
- File Compatibility: The X4 primarily supports fully encoded EPUB and TXT files. If you encounter issues with other formats, convert them to a supported type. Be aware that images in EPUB files may not display.
- Wi-Fi Optimization: For the most stable Wi-Fi connection, especially with phone hotspots, ensure your phone's hotspot name is 'XT-EPD' with password '12345678', and set Android devices to the 2.4GHz band.
- Troubleshooting Freezing: If your device freezes, first try pressing the RESET button, then the POWER button to restart. If a specific book causes frequent issues, try rebuilding its index.
- Mac Users: When transferring books from a Mac, you might notice extra files starting with "." appearing on the device. These are system files from macOS and can be safely deleted by adjusting your Mac's "Clear Cache" settings.
- Font Customization: Take advantage of the ability to customize fonts by placing '.bin' font files onto your TF card.
Warranty and Support
For any technical assistance, warranty claims, or further inquiries regarding your XTEINK X4 E-Book Reader, please contact the seller, Aurora 3C Office Store. They will provide support and guidance for product-related issues.
