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.

We believe that the device's port may have slightly sagged during use due to external force or other reasons, causing misalignment and preventing proper connection of Oculink cables. We recommend that you unscrew the motherboard screws to readjust the position, and then carefully adjust the Oculink interface to ensure the cable connector is aligned flush.

Removing the screws ensures that the Oculink interface on the motherboard is aligned with our port. Once your port can connect the Oculink cable, tighten the screws.

Regarding your question about heat dissipation, please note the following: This mini PC is designed with portability as its core advantage, resulting in a compact internal space. Therefore, under high loads (such as demanding games or multitasking), its heat dissipation capacity is slightly less than that of a traditional desktop PC. This is a common characteristic of mini PCs.

To achieve better heat dissipation, we recommend the following when using it:

• Place the device on a well-ventilated desktop, avoiding placing it in a closed cabinet or where it is obstructed by clutter;

• Regularly clean the dust from the vents and fans;

• If needed, consider using it with a small cooling pad.

Based on your description, here are two common issues and their solutions:

Issue 1: Only numbers can be entered when setting a PIN code.

• Cause: The option to input letters and symbols may not be enabled by default in the PIN code settings interface.

• Solution: In the PIN code settings interface, find and check the "Include letters and symbols" checkbox to set a complex PIN code that includes letters and symbols.

Issue 2: PIN code input has no effect at startup or system interface.

• Solution: First, please try using a commonly used numeric PIN code for verification. If you still cannot unlock after multiple attempts, please note: Computers usually support both PIN codes and user passwords for verification. If you have forgotten your PIN code, you can log in to the system using your previously set system user password.

This appears to be a system issue. The system has crashed. Do not suddenly power off the system during use. This may corrupt system files and cause an automatic repair screen to appear.

You can download a new system from our official website: https://www.bosgame.com/pages/download-center

• Regarding the issue of being unable to access the desktop and getting stuck on the "Preparing for automatic repair" screen during startup, we suggest you try the following steps to resolve the problem:

  Step 1: Try Advanced Startup Options

  1. After the "Preparing for automatic repair" screen, a blue menu will usually appear.

  2. Please look at the bottom right corner of the screen and find and click "Advanced options".

  3. Once inside, please select "Continue using Windows 11" (or a similar option) to see if you can boot into the system normally.

  If the above method is ineffective, the most direct and efficient solution is to reinstall the system.

  Step 2: Reinstall the System

  1. Visit our official website and download the corresponding system according to your product model.

  2. You can also directly visit our support page: https://www.bosgame.com/pages/download-center

  Important Note: During the installation process, when the blue progress bar reaches 100% and the computer automatically restarts for the first time, please immediately remove the USB drive to avoid the installation loop.