Important things to know beforehand

• It's recommended to connect your machine with the USB cable for the upgrade. 
• Ensure that the power supply, the internet, and the USB connection are secured during the upgrade. 
• Keep your computer in an active state during the upgrade. Do not let your computer go into sleep, hibernate, or shut down state.
• Do not turn off xTool F1 Ultra or disconnect its touchscreen controller or other accessories during the upgrade.

Upgrade the firmware

(1) Ensure that your computer is connected to the internet. Open XCS on your computer, and then connect xTool F1 Ultra to XCS via USB cable.

(2) In the top-right corner of XCS, click the icon next to the image of xTool F1 Ultra.

(3) On the pop-up Device settings window, click the Check for updates button under Firmware version. If a new firmware version is found, update the firmware.

Note: 
- XCS downloads the firmware installation package first, and then automatically installs it on xTool F1 Ultra. 
- During firmware installation, xTool F1 Ultra will be disconnected for a while and reconnected when the installation is complete.

(4) After the firmware is updated, select Device settings on the left, and then click Homing to perform Z-axis homing.

(5) When Z-axis homing is complete, press the power switch on xTool F1 Ultra to turn off the device. Then, press the power switch again to restart xTool F1 Ultra.

How to deal with firmware upgrade failure

1. Check the firmware version
   The software may have bugs and prompt you that the firmware update fails, even though the update actually succeeds. To check if an update succeeds, view the firmware version on the touchscreen to know if it is the latest version.
    

Note: You can also restart XCS and view the firmware version in Device settings > Basic info > Firmware version.

2. Check the network
   If there is a network exception, repair the network and try updating the firmware again.
    
3. Check the device connection
   Ensure that the device is stably connected to XCS by using the USB cable. If the device is disconnected from XCS, reconnect the device by using the USB connection and try updating the firmware again.

Note: Using the USB cable to connect the device to XCS provides a more stable connection. If you are using the Wi-Fi connection, the firmware update may be interrupted due to an unstable network.

4. Check the computer status and the power supply for xTool F1 Ultra
   If the computer goes into sleep or hibernation mode or is turned off during firmware update, or if xTool F1 Ultra is cut off from the power supply, the firmware update may fail. Check your computer settings and the power supply. Ensure that the computer stays active and the power supply is stable. Then, try updating the firmware again.