8BitDo 64 Bluetooth Controller DFU/Bootloader

tl;dr: With the controller off, hold L+R and connect it via USB. This is different from other controllers, where you hold L(1)+R(1)+Start then connect it over USB after a red LED is shown. In order to update the 8BitDo 64 controller from Linux, you first need to place it into its DFU mode, booting it into its bootloader. For most 8BitDo controllers, it&rsquo;s said to hold L(1)+R(1)+Start for 3…