Problem with Pixhawk & Blheli_s - motors not rotating

Got a Brand new PX4 PIXHAWK 4 Holybro, 
ESC is Turnigy MultiStar BLHeli-S Rev16 ESC v3
motors rctimer sl2212 920kv 
3s tattu lipo 10000 mAh

using QGC and went with Hexa x build

On powering with battery, tone is 
beep beep beep ----- beep beep beep ---- beep beep beep then immediatly ESC musical tone

ESC caliberation method does not seem to work here, i just get this same tone no matter if doing ESC calib. Motors do not move.

Lights on pixhawk:
after tone: Left side: blinking blue ACT + solid green PWR , right side: FMU, only solid green PWR

Any help will be highly appreciated as I have spent a lot of time pondering over this.
px4 firmware 1.8.1

Also is the ESC oneshot125 able to successfully pair up with Holybro px4 pixhawk 4?

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

Join diydrones

Email me when people reply –


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