F450 Quadcopter very unstable on KK2.1.5 board

[TopGunTejas]

 
Dear members,
I am a student who is new in the RC world. I am building my first quadcopter with these specs:
Motors: A2212 1400Kv
ESC: Dys Simon K esc's
Flight controller: KK 2.1.5 with steveis firmware ver: 1.9
Props: 10*4.5
Frame: 45 cm across

Well, I have been trying to get this craft in the air since the past month. Once in a while it gets more than 4 feet in the air but it flips and falls down. Since I broke 2 props, I have tied its corners with ropes which are slack enough to allow the quad to reach six feet in the air. But, the quadcopter is very unstable and veers off in one direction or the other I need to display this craft at an exhibition on 12th of january, so plzz help me!! I am attaching pictures of my setup. BTW.. I live in Bangalore.. so if anyone is here who could help...that would be greatly appreciated!

Thanks in Advance,
TopGunTejas.

[arorasoham9]

Its not new with kk ...my friend's quad does the same ...can u send pics of your kk settings plz ...that will help identify the problem

[TopGunTejas]

Thank You for your quick reply
PI : Roll,pitch
        P gain : 65   P limit : 100
        I gain: 30   I limit: 20
      Rudder:
         P gain : 65   P limit: 20
         I gain: 50   I limit: 10
Link roll pitch : yes

BTW all values are at default.. I didnt edit anything execpt the motor layout(I set it to quadcopter x mode) and the battery alarm(I set it to 108 for my 3s)

Thanks and Regards
TopGunTejas

[arorasoham9]

Here ...follow this video and u should get in the air very soon....https://m.youtube.com/watch?v=8NAXSBCtSLY

[arorasoham9]

And try reflashing the firmware on the kk

[TopGunTejas]

thank u for your suggestions. That vid helped me a lot!

[arorasoham9]

Keep us updated

[TopGunTejas]

Ok

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