Questions about EasySMX® S15 Controller

FAQ

Manuals

Drivers

Ⅰ.FAQ 

Q1:How to Calibrate the Controller? The stick is drifting and(or) the trigger isn't working, what to do?

a.S15 Button Function Calibration

Left Controller

1. In the powered-off state, press the L button, the D-Pad up button, and the screenshot button in sequence. The LEDs on the side of the controller (LED1 and LED2, and LED3 and LED4) will alternate flashing, indicating successful entry into calibration mode.

2. Rotate the left joystick clockwise at a constant speed over the maximum range for 3 full rotations (Don't apply excessive force during rotation). Place the controller flat on the table for 3 seconds, then press the “-” button to exit calibration mode. 


Right Controller

1. In the powered-off state, press the R button, followed by the X and HOME buttons in sequence. The LED1 and LED2 on the side of the handle will alternate with LED3 and LED4, indicating successful entry into calibration mode.

2. Rotate the right joystick clockwise to its maximum range at a steady speed for 3 full rotations (Don't apply excessive force during rotation). Place the controller flat on the table for 3 seconds, then press the “+” button to exit calibration mode. 


b.Gyroscope Calibration

Left Controller Calibration Method  

1. While the controller is in sleep mode, simultaneously press the ‘L’, “UP”, and ‘Screenshot’ buttons for 1 second to enter calibration mode.  

2. The channel lights will alternate flashing. Rotate the joystick at a steady speed for 3 circles, then place it on a flat surface for 3 seconds.  

3. Press the ‘-’ button to exit. Calibration is complete.  


Right Controller Calibration Method

1. While the controller is in sleep mode, simultaneously press ‘R’, “X”, and ‘HOME’ button for 1 second to enter calibration mode.  

2. The channel lights will alternate flashing. Rotate the controller's joystick at a steady speed for 3 circles and place it on a flat surface.  

3. Press the ‘+’ button to exit. Calibration is complete."

Q2:How to Update?

Method 1: Use the same upgrade package for both the left and right controllers. Download the upgrade package and open it.  

Left controller  

1. While the controller is in sleep mode, hold down the L3 button without releasing it.  

2. Insert the data cable into the charging port at the bottom of the left controller.  

3. Once the upgrade package is successfully recognised, click ‘Upgrade’ and wait for the progress bar to complete.

Right controller  

1. While the controller is in sleep mode, hold down the R3 button without releasing it.  

2. Connect the data cable to the charging port at the bottom of the left controller.  

3. Once the update package is successfully recognised, click ‘Update’ and wait for the progress bar to complete.

 

Method 2: APP update

1. Download the Keylinker app.  

2. Connect the S15 left and right controllers to the Switch console via a cable.  

3. Open Keylinker, click SP5074 (L) → click Settings → click the menu in the top-right corner → click Firmware Update → click Update and wait for the loading to complete.  

【Note】 Do not exit the interface during the loading process.

Q3:Charging indicator

While Powered Off: The channel lights flash during charging and remain solid once fully charged.


While Connected: The channel lights flash slowly during charging and remain solid once fully charged.

Q4:How do I turn off the controller lights?

1. Press and hold the Lighting Settings button for 5 seconds. This will toggle the RGB lighting OFF/ON


2. Check APP Settings

Lighting Settings → Verify if lighting is disabled. If so, perform Factory Reset within the app

Q5:Programmable Buttons Setup

1. Pres S and hold TURBO&FL1(or FL2,FR1,FR2)for 3 seconds.The motorwill vibrate once,entering macro

programmingmode.


2. Press the desired function button (e.g.,“A"" or “A"" & “B""), then press FL1 (or FL2,FR1, FR2) to complete the setting. The

motor will vibrate twice to confirm success.

Q6:What's In The Box

1 x EasySMX S15 gamepad

1 x USB data cable

2 x Interchangeable thumbsticks

1 x Instruction manual

Ⅲ.Drivers

a.Download


Firmware update step:

 1: Use the same upgrade package for both the left and right controllers. Download the upgrade package and open it.

Left controller

1. While the controller is in sleep mode, hold down the L3 button without releasing it.

2. Insert the data cable into the charging port at the bottom of the left controller.

3. Once the upgrade package is successfully recognised, click ‘Upgrade’ and wait for the progress bar to complete.

Right controller

1. While the controller is in sleep mode, hold down the R3 button without releasing it.

2. Connect the data cable to the charging port at the bottom of the left controller.

3. Once the update package is successfully recognised, click ‘Update’ and wait for the progress bar to complete.

b.Testing Tools

To help you quickly check if your controller is working properly, we recommend the following testing tools for different devices:

i.For PC

ii.For Android Phones & Tablets (International Version)
Please download and install the app Game Controller Tester from Google Play to your device, then run it to test your controller.

iii.For iOS Devices
You have two options:
Download the Controller app from the App Store to your device, then use it for testing.