1. Its correct
2. Always check it
3.once it was loose and lost a washer and a damaged prop .. not again . ( BTW , i dont use the washers under my props cause i lost one and so dont use the other 3 , is it fine ? the props are tight without them )
4. Yes they are , especially after the fall .
5. i didnt get this one
6. yes it is in X
7. i ' FIX ' the esc so that they wont fall loose mid way .. ALSO , additionally i fix it in with Velcro .
8. there are almost NO vibrations , especially the ' quad will start moving ' part .. none there .


as dharmik said , i refixed the board in a different way via rubberbands as suggested and used by another person in RcGrouops.com ( see pics attached )

My board is at 1.2 Firmware ... will upgrading it to 1.5 solve teh issue ( i did read 2 people with somehwat similar issues had their quad working right after upgrading )

also i put some layers of transparent adhesive tape on the frame directly under the board - so that the protruding ports from the board dont touch the aluminum frame

Parichya,
For point number 5, when you tilt the quad in a direction using your hand. the motors *going down* should speed up. If you're tilting the quad to right, the front right and rear right motor should speed up (in x config)

If it is not the case, the quad will flip for sure, because if you tilt it to the right and the left motors speed up, the lift on the left side increases, and the quad will flip over almost instantaneously. However, since you mentioned that it has flown twice (although not stable), chances for this problem seem less. Yet, its always a good idea to confirm. If this is the case the gyros will need to be reversed. I never had to do this on the kk 2.0 board so i cannot give you instructions how to do it but there should be a couple available via google and rci.

if the quad will turn to the right with the front of the board facing away from me , shouldn't the left side motors go faster ( or right side motors go slower ? ) ... im still not clear on this

Hold the quad in your hand and tilt it with the props mounted and motors running at about 25%- the motors on the arm going
downwards  should speed up and resist the tilt. First get this sorted out on all the four motors.

Yea.. haha I got 4-5 scars in my hand... after this test... do it with very good care... I won't recommend  this until you make all the necessary settings on the board.. this is just for checking whether the gyros are working correctly..
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did once , will do again for this titling issue now

After i get the remaining stuff


damn i spent almost 30K on my quad now !! NEVER though it would be SO damn costly !!!

30k ?  Can you just give an idea of cost spent? I think that is 3 times of an actual build cost of your quad size....

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bought frame from RcFever , shouldve cost me 8250 but after shipping and other stuff it cost me almost 14K rest of the cost includes the board , charger , the adapter , and now after the damage , new set of props , prop adapters , usb programmer cable and all the other stuff ... i and my friend are sharing the so from my pocket alone ive spent 8080 + 7137 in total ...

Parichya, yes you seem to have overpaid for the quad, but if the learning is successful, the money is soon forgotten.

You can easily diagnose if motors are speeding up even with the props off; 'listen' to the motors as doing this with props can be risky; I've seen my first quad almost fly into my face, lucky I dodged it. You could also do this with the props on and if holding it in your hand feels scary, you might want to tie the quad on the axis using thick copper wire (typically used for internal wiring) or nylon strings. I've screwed in two clothes line hooks between opposite walls for suspending quads and tuning them. Just ensure both hooks are at the same height and the quad is level when suspended. Precision is a first class citizen with quads...

yea i tried the hang it by a wire at 2 sides and then try but it wasn't successful as there are no equally placed holes on the frame still ill try some jugaad without compromising on the precision

Dude I think the problem is with the trims... try playing with trims.. will get corrected... make sure the cg is balanced in the center.. 

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yea ill try the trims ... and yea ive centered the CG as much as i could now..

Check the motors are connected in the same order as in the kk2 settings... and also do check all are spinning in the same order... it should lift for sure.... and trim it as good as you can... sub trims also...

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motors are in correct order and so is the rotation ... it does lift , but keeps tilting ... trims i guess is the dial like thing ... Sub-Trim

I don't want to sound offensive, but the t6 radio is CRAP for multirotors. No failsafe and no expo make this radio quite dangerous for multirotors (I have got the scars to prove it).. Now, as can be seen from the picture, the way you have mounted the kk board is not recommended. You IMU should be rigidly fixed with your airframe, with some vibe dampening. Since you say that your quad does not vibrate, do this:
Get some double sided foam tape, cut four 5mm squares and stick them between the corners of the fc and the frame.
Have you been able to connect the radio with the T6A config tool? You can access subtrims from there only. I had to apply 70% subtrims to get my quad in the air when I used to own this radio.

sub trims from the T6 ? .. hmm i didn't try that ,..., any specific guide for that i was able to reverse the channel from the T6 but how do i go about changing the sub-trim ?