diydrones/ardupilot — pull request #599 by emilecastelnuovo (2013-10-11 14:47:23+00:00)
Title: Copter: fix for radio min and max saving into EEPROM.

This fixes issue #592
If your radio outputs 1100-1900 PWM for throttle, pre-arm check will fail because it thinks your radio is not configured.
The solution is to force the save using the "force_save" parameter for the save method in AP_Param.