Arducopter wont lift

I have to add that I have just replaced my rangefinder lite v3 with TF03 after my crash. But I do not know really does it make sense!

Motor 5 is being commanded to the max indicating a lack of thrust. Motor 6 (opposite arm) is then commanded low to stabilize the craft. The 4 remaining motors provide insufficient thrust. So check Motor 5, ESC, Motor, Prop.

You should update to current Ardcuopter Stable aslso.

Thanks a lot. I changed the wire of Motor 5, and now everything is OK. Instead of giving me a fish, teach me how to fishing. Please kindly let me know how to read *.log files.

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I like that reply Hashem! I used APM Planner 2 for the log analysis. You can use Mission planner also but I find APM Planner to more useful when there is multiple Y-data sets. I have plotted RC Outputs in your log and a tell tale sign something is wrong when one or more motor outputs goes to max or min. So you reported a problem with thrust, the 1st thing to look at is motor output.

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