1.After upgrading the firmware of 75 series ESC to the latest 5.3 firmware, set the "Phase Enable Filters" selection to: FALSE, according to the following figure, and write in at the same time, and go to the next automatic parameter settings:
2.The first step when enter the parameters setting interface is to select "NO" according to the following figure, no matter dual-drive or single-drive.
3.Detect FOC Parameters: Tick if it is a dual-drive ESC, untick if it is a single-drive ESC.
Flipsky 75 series escs:
Know more details of firmware update here: