X401H-V2 Instruction Manual Brandname: Holy Stone Category: Quadcopters Total Pages: 29 Table of contents Introduction3SafetyGuidelines4TheModel8PreparationForFlight10TheModel11Remarks12Operating143DFlips16HeadlessMode17OfTheMotorsandThePcb19HowtoReplaceTheMotor20c4016Installation21WithTheTransmitter22TroubleShooting28