Invalid id on Android App

Dear Sir/Madam,
Thanks for your message,  Firstly, confirm your APP version, please update it to the latest version timely,
you can also tell me your camera UID or you can give me the camera label.

hanattaw replied at 2018-4-21 11:30
Dear Support,

Thank you for your response. Today my camera cannot connect again. It's always show " ...

Dear Sir,
In your previous message, You have said that Android APP have "Invalid ID", the reason is that, The VSTF is new UID type, The older APP version impatiable with
this new ID, So you need to upgrade camera firmware to the latest version, what is more, update the APP to the latest version.

hanattaw replied at 2018-4-24 14:18
I'm sure my camera firmware and application version are up to date for both mobile and PC. below are ...

Dear Sir/Madam,  
the UID with prefix “VSTF”  is the latest UID , So you must update your phone APP,
Please download in the following ways:   visit website http://www.eye4.so/download/

First, delete the APP from your phone and then download a new one.
if failed, and also invalid UID,  please tell me the UID of this camera. I will check it for you.