Each time you use your XS1 after a period of inactivity, it will undergo a pretension sequence. This process will ready your XS1 cables for use. After you enter your device passcode, ensure the cables can be fully drawn into the device. Refrain from touching the cables as you select BEGIN PRETENSION SEQUENCE. Allow your device a few seconds to pretension the cables. This process will need to be repeated each time your XS1 wakes from sleep mode.