For this question,you can according to the following steps,which will help out.
1.When you open V380 App,click Local Login;2.If popped up ''User name or password is wrong'' text,click ''confirm'';then delete device.
3.Restart to search for device;4.It will add automatically your available device,then tap on Edit & Enter the Password then confirm;now it should be work.
Note:If you are still getting errors,following thses steps:
Step 1:Try to re-open the AppStep 2:Clear the App data force stop App,sometimes it works by these.