I have a lg android ver. 4.4.2.I have had about 10 flights with no problems.today I linked up but could not
see what the camera was looking at.I took a photo and it shows up on my phone and down loads to my
computer.,but as I said I cannot see anything on my phone screen.All other functions work on the app. a  
I have read a lot of posts and everyone seems very friendly and helpful

The camera page is black? Can you still see some parameters on the screen? please try to reset camera settings then check again.
Do you have another mobile device to have a try?
Please upload a screenshot here if convenient, thanks.

I get no video from time to time on the App. What always seems to fix it is to turn WiFi off on the mobile device and then turn it back on.

Do you still need help?

thanks for all the replies.I turned phone off pulled bat.,and restarted phone.every thing working now.

DJI-Jamie Posted at 2017-1-6 00:10
Do you still need help?

No I had to reboot my phone.All is good,thqnks to all

townsendfrank Posted at 2017-1-6 13:54
No I had to reboot my phone.All is good,thqnks to all

Good to hear, thanks for the update.