Just setup a Tarot 680 Pro all calibrated, armed properly all motors spins and seems working perfectly but... It doesn't takeoff. It looks like thrust stucked at 25% (stabilize, althold or loiter...) no reaction pass over and no react to yaw, roll or pitch.
Motor MultiStar Elite 3508 268kv
ESC Turnigy Multistar BLHeli 30a v2.0 Bec
Carbon props: 13"
Lipo 2x 4s // 5000mah
DataFlash logs in attachement
Please feel free to comment any advises or ideas are more than welcome