My Hexa tries to flip while taking off!!!

Hello,

it's been a while since my last discussion, especially because I have been very busy building up my hexa and during this period I haven't had any particular issue.

so far so good until three days ago when I tried my first take off, basically when I raised the throttle the copter leaned forward , it would end up in a crash if I hadn't released the throttle immediatelly.

There was obviously a problem on my hexa, I started surfing over the internet and I found this troubleshoting page which reports what can be the reason of tilting during take off.

I have doubled checked any tips in the link above but nothing solved my problem, as soon as possible I am going to recalibrate the IMU, but to be honest I have been following this procedure many times and I believe that IMU should be ok. 

Attached you can find log as well, I have checked vibration and mag_filed and they seems ok to me.

I would like to have some opinion from more experienced users. 

Best regards.

Marco

6_4s.BIN

6_4s.tlog

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