ESC calibration doesn't save in APM

ESC: Simonk 30A
APM: 2.8
Transmitter: FS-iA10
After ESC calibration, It doesn’t save in APM.
How to fix it? help me please

ESC calibration is not supposed to save anything in APM.

That has worked perfectly.It set high and low throttle.

Second attempt you needed to arm the won’t spin without that happening.

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