1.Try to test different internet connections(data&wifi)
2.Check if you logged in successfully
3.Check if you are using latest APP version
4.Check if H2 connected to device
5.If there is network problem,please provide log in time and account
If after above steps problem still exist,please provide device model name,system version,log in time,pictures of issues
send email to email@example.com.We’ll do our best to respond within 24 hours.
Thanks for your support!
VDarts Customer Service Center