Cannot apply throttle / Offboard mode

[igordevjspy]

Hello,

I'm trying to apply throttle using offboard mode.

I have tested those two methods:
set_attitude_target_send
rc_channels_override_send

def apply_throttle_with_attitude(throttle):
    q = QuaternionBase([1, 0, 0, 0])
    master.mav.set_attitude_target_send(
        0,
        master.target_system,
        master.target_component,
        0b00000000,
        q,
        0, 0, 0, 
        throttle / 100.0 
    )

def apply_throttle(throttle):
    throttle_pwm = int(1000 + (throttle / 100.0) * 1000) 
    master.mav.rc_channels_override_send(
        master.target_system,
        master.target_component,
        0,0,
        throttle_pwm,
        0, 0, 0, 0, 0
    )

But it's not working;

I don't think it's a hardware / config issue as it's working fine with mavsdk lib:

import asyncio
from mavsdk import System
from mavsdk.offboard import (OffboardError, Attitude)

async def run():
    # Initialize the drone
    drone = System()
    await drone.connect(system_address="serial:///dev/tty.usbserial-XXXXXX:57600")

    print("Waiting for drone to connect...")
    async for state in drone.core.connection_state():
        if state.is_connected:
            break

    async for health in drone.telemetry.health():
        if health.is_global_position_ok and health.is_home_position_ok:
            print("Drone has a global position estimate")
            break

    # Arm the drone
    await drone.action.arm()

    # Set an initial setpoint
    await drone.offboard.set_attitude(Attitude(0.0, 0.0, 0.0, 0.2)) 

    await asyncio.sleep(3)

    print("Disarming the drone...")
    await drone.action.disarm()

if __name__ == "__main__":
    loop = asyncio.get_event_loop()
    loop.run_until_complete(run())

thanks for your help