Mag sometimes are yellow durning flight sometimes are green. But the problem when i flght is the "jumping" attitude on the air not only in pc via telemetry. I try position hold and vposition hold. I've got 12-13 sat sometimes and the board dont let me to arm my frame. Today i left the aircraft for 30min to full inicialization but that doesnt help. All wire twisted, all calibration is god, hex without gps and poshold or similar fly rock solid. But its god to have position hold or rth. I calibrate mag in the moddle of field(aproxypetli 15-20 footbal field) no hight voltage tover or similar stuff, i use oplink for that not usb cord.