Specifications

HM-BT4502 V1.0
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2（PWD_UPDATED_EVENT）
Update the password
successfully.
3（PWD_CANCEL_EVENT）
Cancel the password
Table 4. Key Data Service
Note:
1. The password structure is 12 bytes ASCII code, the red part is the current
password, and the black part is the new password.
2. The current password is "000000" by default before it is updated by APP.
3. By opening the notification EN of channel FFC2, a notification of the
execution result of the password operation will be generated in this
channel.
4. When APP submits the password "123456123456", the new password is
the same as the current password, APP will get the “notify: 0 (PWD_
RIGHT_EVENT)” in the FFC2 channel to indicate that the password
submitted is correct;
5. When the password submitted by APP (red part) is not same with the
current password, such as: "123455xxxxxx ", no matter what the value of
the X part, APP will get the “notify: 1 (PWD_ ERROR_EVENT)” in the
FFC2 channel to indicate that the password submitted is not correct.
6. When APP submits the password "1234568888", the new password is
"888888" and the current password is "123456", APP will get the “notify: 2