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firm ware 1.9s

  1. M

    KK2.1 FW 1.9S1

    I have a KK2.1 with firmware 1.9S1 on an X900 tricopter. I have not flown anything before. The gain settings are much different than what I've seen suggested on the tube. I need some suggestions on what these settings should be, or will it fly ok with the factory settings, or should I flash it...