Quadcopter won't lift

already done with mandatory configuration
esc are all calibrated
but the it won’t lift up the throtlle is in the middle but still not lifting
all the props are mounted correctly

pls help

Specs ? Photos ? Logs ? Video ?

Really need at least something to go on.

motor: gartt 920kv
esc: gartt 20A
battery:ypg 11.1v 5500maH
prop: 80x35
fc: apm 2.8
rc: fs-i6

A couple of photos or a video would help.

How heavy is it ? Have you ever downloaded logs ? A log is where all the details are of an attempt to lift off along with all the parameters and would probably clear this up quickly.If i had the copter in front of me it would take seconds but I don’t so I need you to provide as much information as possible otherwise I won’t be able to analyse anything.I could go on guessing and suggesting for weeks but it would be a miracle if that helped.

2017-03-21 11-00-16.tlog (1.1 MB)

i don’t know if this what your asking but this is the last telemetry log i have

Mark,
could you pleasae post a picture of your rig?
And could you please post a .log file? You can gather this kind of file via the DataFlash Tab in Mission planner. Best way is to connect via USB to your APM

Try here Mark.

http://ardupilot.org/copter/docs/common-downloading-and-analyzing-data-logs-in-mission-planner.html