Sure. You can change the wifi password within the app. See option on top.
Many thanks Forstie.
I have tried that several times.
1) When I click on password, it wants the default password. After inputting the default password it says 're link wifi with password'. It does not give me an opportunity to enter a new password.
2) If I click on password and input a new password, it says 'input error'
So I seem to be going round in a circle and do not appear to be able to input a new password.
What phone do you have? and have you download the last version of App?
Here we tested it again, it works as it should.
Click the passwords, and input new, you can try on very simple one, like 87654321, and click OK, it should work.
WiFi will be disconnected after change, you need to reconnect WiFi and input new Password again.
To change back to the default password, just reinstall the firmware, can download from website.
Solved it, the new password must be at least 8 characters.
Can it be more than 8 characters ?
The chipset limits the input no more than 8 characters.