Once you are inside the Factory Settings menu, you may want to change the default password to prevent others (or children) from messing with the configuration. Here is how to set a new password.
You cannot change the factory password on most PX6 units unless you root and modify system files. That password is fixed per firmware build. px6 install set password
Most people just memorize or write down the default password for their MCU version. Once you are inside the Factory Settings menu,
When users search for they usually mean one of two things: px6 install set password
Settings > System > Reset options > Erase all data (factory reset)