# SHARKOON SKILLER SGK50 S4 ![ISO](https://i.imgur.com/4WDIMm0.png) * Keyboard Maintainer: [JoyLee](https://github.com/itarze) * Hardware Supported: [SHARKOON SKILLER SGK50 S4 PCB](http://www.sharkoon.com/) Make example for this keyboard (after setting up your build environment): make sharkoon/skiller_sgk50_s4:default Flashing example for this keyboard: make sharkoon/skiller_sgk50_s4:default:flash See the [build environment setup](https://docs.qmk.fm/#/getting_started_build_tools) and the [make instructions](https://docs.qmk.fm/#/getting_started_make_guide) for more information. Brand new to QMK? Start with our [Complete Newbs Guide](https://docs.qmk.fm/#/newbs). ## Bootloader Enter the bootloader in 3 ways: * **Bootmagic reset**: Hold down the key at (0,0) in the matrix (usually the top left key or Escape) and plug in the keyboard * **Physical reset button**: Briefly press the button on the back of the PCB - some may have pads you must short instead * **Keycode in layout**: Press the key mapped to `QK_BOOT` if it is available