How to troubleshoot or setup starting with a hard reset a FlySky Paladin PL18 Receiver to factory default settings if it is not working or not connecting or if it is frozen or not responding, the factory reset is a good troubleshooting step. You can also restore the factory settings to setup your device as new. Found in the FLYSKY Paladin PL18 Mode 2 2.4GHz AFHDS3 18CH Radio System w/FTr10 Receiver user manual.