After upload fw onto pixhawk with QGC. So QGC difficult with me, and I trying flashing fw from Mission Planner, but some thing error in Usb ( the pin of USP maybe not tight, when I keep my hand it can connect. But when my hand strong, Usb take out. I trying to welding but have error too.)


Some body tell me press reset button ( near usb) to reset fw. so now my board error, Main led red flashing

Coud you please help me, How upload fw without usb ( ex telem1, telem2, serial 4/5).

many thanks for support

(Sorry my enghish)


Reed Noel

You need to be a member of diydrones to add comments!

Join diydrones

Email me when people reply –


  • I trying welding usb port, but can't connect with pc, try changing other port of PC and other cable.

    Some body know, please help.


    Reed Noel.3702385070?profile=original

This reply was deleted.


Liam left a comment on Agricultural UAVs
I'm Liam from T-MOTOR. I would like to reach out to see if there is any possibility for us to work together.
We are a propulsion system manufacturer who offers motors, propellers and ESCs for all kinds of drone applications which vary from secur…"
Jun 30
Richard Cox left a comment on Australia
"Anyone in the DIYDRONES Australian subgroup based in Alice Springs, NT?
I am experimenting with Ardupilot (standard Arduplane), Pixhawk 4 FC in a 4-ch
RC "AXN Floater Jet" foamy plane..."
Jun 29
Omar Sykes left a comment on Australia
"Hi everyone, I am looking for someone who is good at drone building, repair and software in Adelaide. Please give me a call on 0477 319 219."
Jun 29