Turn on your QIDI X-Plus. Navigate to the Tool screen (usually the gear icon) > About Machine. Here you will see your current version (e.g., V1.2.3). Write this down. If you are already on V2.1.2, you likely do not need an update.
Even with a perfect guide, things can go wrong. Here is how to fix the most common qidi xplus firmware install errors.
This is the step where most people fail. The QIDI mainboard is picky about the SD card format. qidi xplus firmware install
A successful qidi xplus firmware install relies on preparation. You will need:
Format SD card
Copy firmware to SD card
Install firmware
Verify