Expert answer:
Hello, thank you for purchasing our products, please see the following about FC-S02E manual:
If it is to modify the management password operation method: By entering * + the current management password + # 60 + # + new management password + new management password + #
If you forget the current management password, you can pass it, press the RESET initialization button on the back of the FC-S02E for 1 second (if you press it for more than 3 seconds, all data will be automatically cleared, please be cautious), to restore the management password: 1234 (default)
If it is to modify the operation method of door opening password: By entering *+ current management password + # 11 +# + new opening password + new opening password +#
If it is to delete the door opening password operation method: By entering * + the current management password + # 35 + # + opening the door password + opening the door password + #