Recent content by Laserman532

She flys but according to this it shouldn't.

UPDATE! - USING OLD VERSION OF FW (1.02.0602)...When calibrating the new FC it would never get past 0% so I thought Main Board was toast too...but it is not...When attempting IMU cal it never advanced on graph but it was calibrating. I installed a new FC and with a lot of "messing around" -...

I have ordered a flight controller board off of eBay - 78.00 from a US reputable dealer. Supposed to be here next week...my question...should I upgrade the firmware? I assume it is located on this board?

UPDATE - I was able to calibrate compass successfully. the IMU calibration stops at 65% when NO fan gimbal is installed and stops at 2 to 8% with fan gimbal installed. Which board is the IMU sensor circuit on? Is that what you are calling a main board? I see the one add for Ebay. Where else...

Thanks for the link...does anyone know if that is where the IMU circuity is located? I don't know what that board does. I know what the ESC boards are and the PS board is but not this one.

removed gimbal fan ran test two more times - IMU cal fail at 58% and 63%. each IMU goes up by 1% each in steps very slowly. There is a tiny dot next to IMU1...there is no tiny dot next to IMU2...does it sound like this IMU card is toast? Thanks for anyone who wants to chime in. I looked on...

UPDATE - thinking that it was taking long time to transmit data to no antenna, I installed landing gear and connected antenna and compass (trying not to snap shell together). ran test IMU fail 68%. Thinking it needed some cooling I installed broken gimbal part with fan on it. repeat test (fan...

thank you Neon- yeah it didn't help either way. IMU cal fails between 8% an 16% my record is 36%. Remember this is / was a crashed drone. I get good DJI 7 tone, then solid red. Critical Failure - I figured IMU first before compass. I do not have lower part of shell installed. I have it...

after refrigerator for one hour got to 8% and failed. I now have it in the freezer. Is there a temperature sensor that could be faulty? Where is the IMU Board, sounds like if a temp sensor is bad IMU's stop loading and fail.

UPDATE- I got app running and linked. First time i tried IMU calibrate it got to 45% then stopped saying temp range is out calibration fail. I built a jig to place a good muffin fan below it...have good airflow to heatsink. heatsink not hot to touch. IMU calibration now stops at 2% (tried...

Hello Folks, first post here - from Oregon! I have repaired 1- P4 from a bad crash my son had last year. So I have some experience working on these, last P4 repair still flies (its crash was severe, three motor arms dangling by wires). I bought what appeared to be a very minor crashed P4 off...