PX4 Firmware Prior to V1.16

Hi. My drone is using PX4 firmware v1.16 running on QGC.

I learned that the parameters which are shown as missing (BAT1_V_LOAD DROP, BAT2_V_LOAD_DROP, BAT_N_CELLS, BAT_V_CHARGE, BAT_V_EMPTY) are in versions up to v1.15 and not included in v.16.

How do I downgrade to versions prior to v1.16 within QGC?

Hello,
Just go through the below web link

if you want to get pre-built fw for your board, check github releases. Releases · PX4/PX4-Autopilot · GitHub , go to preferred release and click Assets. not all releases have pre-built fw

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Thank you so much for the information.

Thank you so much for the information

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