QIDI X-Plus (specifically the X-Plus 3 and Plus 4 series), recent firmware updates have introduced several performance-enhancing features and improved user interface options. Key Features QIDI-Link Integration : Supports APP scanning to bind devices via the QIDI Maker mobile applications. Optimized Connectivity : Includes fixes for USB recognition issues on startup and improved thumbnail display for various slicing softwares. Improved Filament Management
MKS Robin Nano.bin(mainboard firmware)TFT35.bin(touchscreen firmware)
Manual Calibration: Updates often reset your Bed Mesh and Z-Offset. You must re-calibrate everything immediately after.
| Problem | Most Likely Fix |
| :--- | :--- |
| Screen stays blue after mainboard update | Bad SD card format. Re-format FAT32, 4096 bytes. Use a 4GB or 8GB card. |
| UI update hangs at “0/128” | The DWIN_SET folder is corrupted. Re-download the zip and replace the folder. |
| Printer boots but touchscreen doesn’t work | You updated the mainboard but not the UI. Go back to Step 5. |
| “No printer attached” error | The ribbon cable between screen and mainboard is loose. Happens during vibration. Re-seat it. |
- Don’t use the “Wrong” file. The QIDI X-Plus, X-Plus 2, and X-Plus 3 use completely different firmware. Using the wrong one will brick your screen or mainboard. Always double-check your model on the back label.
- This is the official path. This guide covers the stock Marlin-based firmware from QIDI. If you’re looking for Klipper or a community build, this isn’t that guide.
If you encounter issues during the firmware installation process:
Final Verification: Your First Test Print
Do not immediately start a 20-hour print. After your firmware install and calibration, run a simple "XYZ Calibration Cube" from the SD card.
- Rename firmware file to
firmware.bin(for 32-bit boards) or follow QIDI’s naming rule. - Place file in root directory of SD card.
Important Notes
- Do not use firmware from X-Plus II, X-Max, or other models.
- If your X-Plus has a touchscreen (later revisions), firmware update may require both mainboard and screen firmware.
- After update: recalibrate Z offset, extruder steps, and PID tuning.
