QIMMIQ FREON Quick Start Manual page 32

Side ward fly fine-tuning
When the quad copter keeps flying to left/right side, you can correct it by pressing the Fine-tuning button right/left.
Turn left/right fine-tuning
Turn left/right fine-tuning when the quad copter keeps rotating to left/right, you can correct it by pressing the fine-
tuning button right/left.
Restart function:
In case of flight disorder or side ward flight, restore factory default settings by the following methods: