[Problem] Modify the language of 5023/6/7/8/9 and other devices.
[Solutions]
(1) Set it in Chinese: Use short message command 1234CN, Reset the device after changing the language; (Note: 1234 is the initial password of the device, if you change the password, you need to use a new password to send instructions.)
(2) Set it in English: Use the short message command 1234EN, Reset the device after changing the language; (Note: 1234 is the initial password of the device, if you change the password, you need to use a new password to send instructions)