The printer should detect the files automatically. You will likely hear a series of beeps and see a progress bar or "Updating" message on the screen. Note: Do not turn off the power during this process.
Sometimes the mainboard updates but the screen UI remains outdated, causing display glitches or wrong icons. To update the screen: qidi xplus firmware install
Insert the USB drive into the printer's USB port and turn the power back on. The printer should detect the files automatically
To install or update the firmware on your (including the X-Plus 3 and Plus 4 models), you can follow this structured guide for both offline and online methods. 1. Offline Firmware Update (USB Drive) qidi xplus firmware install