Firmware cannot "fix" a bad hardware view. Ensure your GPS module is plugged into the GPS port (not the I2C port) and has a clear view of the sky. Final Thought
The default PIDs in 3.6.x are safe for a 450-600mm quadcopter. For aggressive flying, modify these parameters: pixhawk 248 firmware
(STM32F427VIT6 rev3). This target supports the full suite of modern firmware features. PX4 Autopilot Installation & Setup Process Installing or updating firmware is typically done through Mission Planner (for ArduPilot) or QGroundControl (for PX4). PX4 Autopilot Firmware cannot "fix" a bad hardware view
: Assign modes like Stabilize , AltHold , and Loiter (GPS-based) to your transmitter switches. Important Note on Hardware pixhawk 248 firmware