Depending on the version you downloaded, the file will likely be named something like qidi_xplus_v4.2.2.bin or similar.
If your printer is connected to Wi-Fi, this is the easiest method. On the touchscreen, open the Check for Updates qidi xplus firmware install
Conclusion Flashing firmware on the Qidi X-Plus can bring important fixes, new features, and support for hardware upgrades, but it also carries risks including warranty loss and potential bricking. For most users, applying official firmware updates via SD card provides a safe, straightforward improvement path. Advanced users can gain significant benefits from custom firmware (such as Marlin) if they carefully match configuration to their board and peripherals and follow tested flashing procedures. Whether performing an official update or installing custom firmware, careful preparation, backing up existing settings, validating post-flash behavior, and following safety precautions will minimize problems and produce better printing results. Depending on the version you downloaded, the file
Use this method if your printer is not online or if you need to install a specific version found on the QIDI Firmware Download page . : For most users, applying official firmware updates via