1. Product Overview
The Oilsky M501pro is a versatile digital player running on Android 13.0, offering a rich multimedia experience with its 4.7-inch touch screen. It supports various audio and video formats, features Bluetooth 5.0 and Wi-Fi connectivity, and includes a range of functions such as voice recording, e-book reading, FM radio, and games. The device comes with 64GB internal storage, expandable up to 1TB via a TF card.


2. Package Contents
Upon unboxing, please verify that all items are present:
- Oilsky M501pro Digital Player
- USB-C Charging Cable
- Earphones
- User Manual (this document)

3. Device Layout and Buttons
Familiarize yourself with the physical layout and functions of the device's buttons and ports:

| No. | Feature | Description |
|---|---|---|
| 1 | Volume + | Increase volume. |
| 2 | Volume - | Decrease volume. |
| 3 | Reset | System reset button. |
| 4 | Power on/off | Press and hold to power on/off. Short press to turn screen on/off. |
| 5 | Speaker | Integrated audio output. |
| 6 | USB-C port | For charging and data transfer. |
| 7 | TF card slot | Insert TF (MicroSD) card for expandable storage. |
| 8 | Recording hole | Microphone for voice recording. |
| 9 | 3.5mm output | Audio jack for headphones. |
| 10 | Return | Navigate back in the interface. |
| 11 | Home | Return to the home screen. |
| 12 | Background program | View and manage running background applications. |
| 13 | 4.7 inch screen | Touchscreen display. |
4. Setup and Basic Operations
4.1. Charging the Device
The device can be charged using a wall charger or by connecting it to a computer via the provided USB-C cable. For optimal battery performance, new batteries require several charge and discharge cycles. If the device is not used for an extended period, charge and discharge it at least once a month to prevent battery damage from over-consumption. Use a 5V 1A charger for safe and efficient charging.
4.2. Power On/Off
- Power On: Press and hold the Power button (No. 4) until the Oilsky logo appears.
- Power Off: Press and hold the Power button (No. 4), then select "Power Off" from the options.
- Screen On/Off: Short press the Power button (No. 4) to turn the screen on or off without powering down the device.

4.3. Gesture Operations
- Long press: Press and hold icons for 2 seconds to access options. Long press a blank area on the main screen to enter editing mode.
- Slide: Swipe fingers across the screen to navigate.
- Drag: Long press an icon and drag it to a new position on the screen.
- Touch Buttons: Slide up from the bottom of the screen to reveal touch navigation buttons. Press the button to hide them. If these buttons turn black, press the button again to restore them to white.
4.4. Initial Setup (Wi-Fi & Bluetooth)
To connect to Wi-Fi or Bluetooth, navigate to the "Settings" menu.
- Wi-Fi: Turn on WLAN (Wi-Fi) in settings or by swiping down the status bar. Tap on the desired network and enter the password if it's encrypted.
- Bluetooth: Turn on Bluetooth. The device will automatically search for available devices. Select a device from the list to pair. The M501pro supports Bluetooth 5.0 and codecs like SBC, AAC, and LDAC for high-quality wireless audio.

5. Operating the Device
5.1. System Settings
Access the "Settings" menu to customize your device:
- Memory: View average memory usage and memory used by apps.
- Apps & Notifications: Manage recently opened apps, uninstall, force stop, and adjust permissions.
- Battery: Monitor charge and usage information, enable power saving modes.
- Display: Adjust brightness, night light schedule, wallpaper, sleep timeout (15s, 30s, 1m, 2m, 5m, 10m, 30m), auto-rotate screen, font size, display size, and screen saver.
- Sound: Adjust media, alarm, and notification volumes. Set default alarm sound. Other sound options include screen locking, charging, touch sounds, and sound enhancement.
- Storage: View available and total space of internal storage and SD card, and app occupancy.
- Security: Set screen lock (Swipe, Pattern, PIN, Password). Make passwords visible or not. Manage encryption and credentials.
- Auto Shutdown: Configure automatic shutdown after 5/10/15/20/30 minutes, or never.
- Schedule Power On & Off: Set specific times for the device to power on or off.
- Language & Input: Set system language and input methods (Android keyboard or Gboard).
- Date & Time: Adjust device date and time.
- About Device: View detailed device information.
5.2. Multimedia Playback
The M501pro supports a wide range of audio and video formats. You can download and install various media player apps from the Google Play Store.
- Music Playback: Supports MP3, OGG, FLAC, AAC, WMA, WAV, APE. The device is compatible with apps like HiByMusic, Spotify, and Amazon Music.
- Video Playback: Supports AVI, MKV, RMVB, FLV, MP4, DAT, MPG, MOV, TS in 1080P HD. The 4.7-inch IPS screen provides a wider viewing angle.
- E-Book Reading: Supports e-book reading. You can install e-reader apps from the Play Store.
- Games: The device supports various games downloadable from the Play Store.


5.3. App Installation
The device supports online installation and uninstallation of applications via the Google Play Store.

5.4. Taking a Screenshot
Press and hold the [Power button] and [Volume -] button simultaneously to capture a screenshot.
6. Maintenance
6.1. Battery Care
To prolong battery life, ensure regular charging and discharging, especially if the device is stored for long periods. Avoid complete discharge.
6.2. SD Card Management
If the TF (MicroSD) card is not recognized, try formatting the card through the device's settings. Remember to back up any important files before formatting.
6.3. Software Updates
For optimal performance, ensure your applications are up to date. If an APK cannot be installed, try using a lower version of the APK.
7. Troubleshooting
- Device Crashes/Freezes: If the device crashes or freezes, try resetting it or restoring factory settings. Important: Back up all your files before performing a factory reset, as all data will be erased.
- Forgotten Password: The universal password is 1235789. Enter this password to unlock the player if you forget your screen lock password.
- SD Card Not Recognized: Try formatting the SD card. Ensure all important data is backed up first.
- App Installation Issues: If an APK cannot be installed, try using a lower version of the APK.
8. Specifications
| Feature | Detail |
|---|---|
| Display | 4.7 inch, 720*1280 pixels, Full Touch Screen, IPS |
| Internal Memory | 3GB RAM + 64GB ROM |
| External Memory | Supports TF card up to 1TB |
| Operating System | Android 13.0 |
| Processor | MTK 6762 chip |
| Audio Format Support | MP3, OGG, FLAC, AAC, WMA, WAV, APE |
| Audio Bitrate | MP3: 32Kbps-320Kbps, WAV: 1411Kbps, AMR: 12.8Kbps, APE: 258Kbps-1411Kbps, FLAC: 265Kbps-1411Kbps |
| Video Format Support | RM, AVI, RMVB, FLV, MP4, DAT, MKV, MPG, MOV, TS (1080P HD) |
| Picture Format Support | JPG, BMP, GIF, PNG |
| Recording Format | AMR |
| SNR (Signal-to-Noise Ratio) | ≥85dB |
| USB Port | Type-C USB2.0 |
| Bluetooth | Yes, Bluetooth 5.0 (Supports SBC, AAC, LDAC) |
| Wi-Fi | Yes |
| Compatible Systems | Windows 7 and above |
| Operating Temperature | 0-45°C (32-113°F) |
| Battery | 2500mAh Lithium Battery (>20 hours battery life) |
| Charging Input | 5V DC, 1A |
| Dimensions (WxHxD) | 11.8*6.5*1.1cm |
| Body Material | Metal |
| Functions | Voice Recorder, E-Book Reading, FM Radio, Games, Bluetooth, Built-in Speaker, Pedometer, Photo Viewer, World Clock |
| Certifications | CE, FCC, RoHS, WEEE |
9. Safety Information and Warnings
- Do not expose the device to extreme temperatures (below -10°C or above 50°C) for prolonged periods. Extreme temperatures can cause deformation and shorten the device's lifespan.
- Do not use the device during thunderstorms.
- Do not immerse the device in water for extended periods.
- Avoid prolonged direct sunlight exposure.
10. User Tips
- Charger Compatibility: Always use a 5V 1A charger for optimal and safe charging. The device does not support fast charging.
- App Versatility: Leverage the Android 13.0 system and Google Play Store to install a wide range of applications, including streaming services (Spotify, Amazon Music), e-book readers, and games.
- Offline Content: Utilize the ample storage and expandable memory to download music, podcasts, and videos for offline enjoyment, reducing reliance on constant internet connection.
- E-book Experience: For e-book reading, the device offers a responsive and clear display, a significant upgrade from slower e-ink readers. Ensure your e-book apps are compatible with Android 10 or higher for best performance.
- Bluetooth Audio Quality: The device supports advanced Bluetooth codecs like LDAC, providing excellent audio quality with compatible headphones or speakers.
11. Warranty and Support
For after-sales service or to download additional manuals, please visit www.oilsky.com.cn. You can also contact customer support via email at oilskyservice@hotmail.com.
All rights reserved. OILSKY, the OILSKY logo, and other OILSKY marks are owned by OILSKY and may be registered. All other trademarks are the property of their respective owners. OILSKY assumes no responsibility for any errors that may appear in this document. Information contained herein is subject to change without notice.
A PDF version of this user manual is available for download: Oilsky M501 Digital Player User Manual (PDF).