[STEVAL-FCU001V2] Looking for a functional firmware & compatible Mobile App

[Yoann_A]

Hello,

I am currently working on a drone project based on the STEVAL-FCU001V2 board. My hardware setup consists of:

• Motors: 4x 8520 Coreless DC motors (3.7V).

• Battery: 1S LiPo 600mAh (30C).

• Frame: Custom micro-drone frame (~60g AUW).

I am looking for a reliable and fully functional firmware (source code or .bin) that is compatible with the latest mobile application for flight control of STM.

I’ve noticed that the original ST Drone (or ST BLE Drone) application sometimes has connectivity or stability issues with recent Android/iOS versions.

My questions are:

1. Is there a specific version of the STSW-FCU001 firmware that you recommend for best stability in 2026?

2. Is the "ST Drone" app still the official way to fly this board via BLE, or is there a community fork or a newer ST app recommended for this specific FCU?

3. Are there any known patches for the PID values or PWM frequency (specifically for 8520 motors) to improve the hover stability?

Any advice, GitHub links, or updated STSW packages would be greatly appreciated!

Best regards,