Mode Q212 Q213 Q214 Controller Upgrade Operation

You just open the upgrade program file, simple steps to upgrade this controller.

Upgrade operation:
1. Open the upgrade program
2. First press down the left joystick of the controller vertically, do not release, and then connect the controller to the computer with the supplied USB cable.

（In the upgrade process, make sure you didn’t release your finger when press and hold the left joystick vertically in this process. As vertically press and hold the  left joystick is very important.  Make sure your usb cable has data function to connect pc and controller.）
3. Wait until the DOWNLOAD button is activated and release the left joystick. Click DOWNLOAD and wait for the upgrade to complete.
Here is a video guide for this upgrade operation.
https://www.youtube.com/watch?v=OwiZNwuX4Zw

controller upgrade file

Video Guide for Upgrade