The RCM Jig allows you to enter into RCM(Recovery Mode) on your Switch. It can be used to modify the archive, play GBA / FBA and other simulators, the homemade system can already load Switch games. It is compatable with NS/SX OS RCM Jig is easy to use and install. Connect your RCM Jig to the Right-Hand Joycon rail of switch. Then hold VOL+ press the Power Button. Specifications Material: ABS plastic Suitable: for N-Switch RCM / NS SX OS Size: 3.5 x 3.5 x 1.8 cm / 1.38 x 1.38 x 0.71 in Weight: 6g How to use RCM Jig? 1. long press NS power button, pop-up menu select "power option",click "turn off". Turn NS off completely. 2. Copy needed files to the root directory of your TF card 3. Connect your RCM Jig to the Right-Hand Joycon rail of switch. 4. Then hold VOL+ press the Power Button. 5. NS is still in black screen, but already enter into RCM. 6. Connect your NS and computers/Android phones/dongle and inject the boot program via the microUSB Cable. 7. Guide you to the TF card system, you can run a variety of homemade software, systems, games.