AOS-CX Restore switch to factory default!
There is no hardware button to reset the switch to factory default settings. The clear button is not there, the reset button will only reboot the switch (short press triggers software reboot, long press triggers hardware reboot). The way to restore switch to factory default is by typing the command "erase all zeroize" at console.
Please refer AOS-CX Fundamental guide to know more details:
AOS-CX 10.06 Fundamentals Guide 6300, 6400 Switch Series 
Good day!
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Yash NN
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