• Perform a System Restore Using the Video Guide: If you wish to restore your existing system, please refer to our video SOP specifically designed for system restore. The process is clear and intuitive.
  Video Link: https://www.youtube.com/watch?v=qvgVn5OcKAc

• Download and Install a Fresh Operating System: If you find the restore process complex, or if your system has many problems, we recommend downloading and installing a fresh E2 system, which usually provides a cleaner experience.
  Download Address: Please visit the official support page: https://www.bosgame.com/pages/download-center
  Installation Guide: You can find a detailed illustrated installation tutorial at the bottom of this page.

Method 1: Rebooting from within Windows

• On the Windows desktop, press and hold the Shift key on your keyboard.

• While holding down the Shift key, click the "Start" menu, then select the "Power" button, and click "Restart".

• After the computer restarts, you will enter a blue "Options" menu.

• Select: Troubleshoot → Advanced options → UEFI firmware settings.

• Finally, click the Restart button. The computer will directly enter the BIOS/UEFI settings interface upon the next startup.

Method 2: Entering via a key during startup

• Completely shut down the computer.

• After pressing the power button to turn it on, immediately begin rapidly and continuously pressing the Delete key (or F2, F10, or Esc key on some brands of computers).

• Continue pressing until you enter the BIOS/UEFI settings interface.

• This device does not have built-in speakers. For audio output, you will need to use a monitor with an audio output interface or external 2.0 channel speakers.

• If the speaker icon in the system tray displays a red "X", please check if your graphics card driver is fully installed.

• Have you tried switching the audio output source? You can do this via Settings > System > Sound > Select sound playback device.

Thank you for your email. We understand the inconvenience your Bluetooth connectivity issue is causing. To help us pinpoint the problem, please confirm the following information:

1. Scope of the Problem

   • Is only this Bluetooth mouse unable to connect, or is your computer unable to recognize all Bluetooth devices (e.g., headphones, keyboards, mobile phones, etc.)?

   • If it's a problem with a single device, we suggest you try pairing this mouse with another computer or mobile phone to determine if the problem lies with the mouse itself.

2. Basic Troubleshooting Suggestions

   • Ensure your Bluetooth device has sufficient battery power and is in "discoverable" mode (usually activated by long-pressing the pairing button).

   • We recommend restarting your computer's Bluetooth function: turn Bluetooth off in system settings and then turn it back on.

3. Driver Solutions
   If you have confirmed that all Bluetooth devices are unrecognizable by your computer, the problem is likely a driver issue. Please visit the BOSGAME official support page to download and install a Bluetooth driver compatible with your computer model.

Official Driver Download Path: BOSGAME Official Website → Support → Enter Product Model → Select Operating System → Download Bluetooth Driver
(Official Website Link: https://www.bosgame.com/pages/download-center)

After installing the driver, please restart your computer and test the Bluetooth function again.

Bluetooth Connection Troubleshooting Guide

1. Check Hardware Recognition

   • Press Win + X simultaneously to open the menu and select "Device Manager".

   • Expand the "Bluetooth" category and check if Bluetooth hardware devices are listed. If no devices are displayed, it usually means the hardware is not recognized, which may indicate a physical connection problem or hardware malfunction.

2. Check System Tray Icon

   • Observe the system tray area in the lower right corner of your desktop and look for the Bluetooth icon.

   • If you cannot find this icon, this is consistent with the hardware not being recognized issue mentioned above, indicating a hardware-level problem.

   • If you can find the Bluetooth icon, please continue to the next step.

3. Try Adding a Device

   • Go to "Settings" > "Bluetooth & other devices" > "Add a device" and try searching for and connecting your Bluetooth device.

4. Driver Troubleshooting (Final Step)

   • Driver issues should only be considered if the system can detect the Bluetooth hardware but cannot successfully connect to the device.

   • In this case, please visit our official website and download and install the latest Bluetooth driver according to your product model.

To facilitate connection to audio devices, our mini host provides both a 3.5mm microphone jack and a Type-C interface, allowing you to choose flexibly according to your device type.

• Check if the power adapter indicator light is on (if not, check the adapter and AC connection).

• Press the power button for 3 seconds. Does the power indicator light on the machine light up? (If not, skip to step 6).

• Plug in only the keyboard and power adapter, press the power button, wait 3 minutes, then press the "Caps Lock" key on the keyboard. Check if the keyboard LED indicator light is on.

• Connect the monitor directly using an HDMI cable. Do not use an adapter yet. Ensure the monitor is powered on and switched to the HDMI port.

• Remove external devices. Unplug the keyboard, USB flash drive, or other USB/dockback devices.

• Remove the power supply, press and hold the reset hole for 30 seconds, then power on to check.

• Remove all hard drives and see if you can enter the BIOS.

• Remove the RAM, check for dirt, clean it, and reinsert it.

• Try installing only one RAM module, or try a different RAM slot and a different RAM brand.

• If the problem persists, please report the results of the above steps to us.