In summary: was the "golden stable" release that proved 32-bit autopilots were ready for mainstream hobbyist use, bridging the gap from the old APM era to modern drone firmware. It's a nostalgic milestone in open-source drone history.
Select Pixhawk1 or FMUv3 during installation. PX4 Autopilot pixhawk 248 firmware
The Complete Guide to Pixhawk 2.4.8 Firmware: Installation, Configuration, and Troubleshooting In summary: was the "golden stable" release that
Place the vehicle perfectly flat, on its left side, right side, nose up, nose down, and upside down when prompted by the software. Keep the vehicle perfectly still during each step. 3. Compass Calibration (Magnetometer) PX4 Autopilot The Complete Guide to Pixhawk 2
Historically, ArduCopter 3.6.8 was a landmark release. Some users internally labeled builds from the 3.6.x branch as "248" due to the final digits of specific commit hashes or bootloader identifiers (e.g., bootloader version 2.48). In many online forums (RCDiscuss, ArduPilot Discourse), "Pixhawk 248 firmware" has become shorthand for ArduCopter 3.6.8-3.6.12 optimized for FMUv2 boards with 1MB or 2MB flash .
Once the status bar finishes, you will hear a musical tone from the Pixhawk buzzer indicating a successful reboot. Method B: Using QGroundControl (Recommended for PX4)
Places the Pixhawk on all six flat sides (level, left, right, nose up, nose down, back) to map its orientation in 3D space.