Hello Friend,
Yes, same thing happened to me flies fine but FPV was toast, you would turn the camera, then like 8 seconds later, the image on your phone would turn , VERY Frustrating! Anyhow I have GREAT NEWS! Easy fix.
( depending upon you smart phone ? )
I run a IPhone 4s ( 16gb )
First, my problem started when my DJI app ( Auto updated )
So FIRST, I deleted the DJI APP, and then re-installed it. This fixed the delay, but was still a little glitchy, so this next part YOU will have to play with, and I'll explain.
( my original setting was ( 640x480 30fps ) when glitching
With your phantom on ( ready to fly ) NO BLADES! Everything on ( controller, wifi extender, and P2V )
With ( GOOD BATTERIES IN RADIO, and FULLY charged batteries in P2V and extender!
Once on go into setting on app home screen, you'll need to find ( PREVIEW SETTINGS )
Under this setting you have 4 options, actually 3, I believe option 4 is solely for P2V+.
Ok option 1: 320x240 15fps ( this means your P2V, will be sending your phone a ( 320pixel x 240 pixel image sent at 15 frames per second ) this setting is a virtually low resolution image ( pretty crappy if you ask me ) only FPV will suffer ( actual camera recordings and images will still be high quality ( but you can change that as we'll, but that is another topic ) this setting has no delays, ok, next is OPTION 2: 320x240 30fps, this setting is a much nicer image, same pixel x pixel, but broadcast at a much faster rate ( 30 frames per second ) this setting has no delays
OPTION 3: ( this is my setting ( iPhone 4s )) 640x480 15fps ( beautiful quality FPV image, with no delays )
OPTION 4: ( I do not recommend this option ) 640x480 30fps ( every time I use this setting my camera starts to delay, and the delay gets longer and longer the longer I keep it going, got to 30 seconds behind once! ) still flew beautifully, but FPV was WORTHLESS!
So
1) delete & reinstall DJI APP
2) reduce your ( preview setting ) to a lower rate
( you will have to experiment depending on your phone?
I run stock P2V,( I have updated to latest firmware ( P2V, and controller, I also updated camera drivers ) and iPhone 4s my PREVIEW setting is ( 640x480 15fps )
I'm running full 1080p ( I chose center option on picture width )
Nice all around picture, not too wide, not too skinny! ( this setting is in the app as we'll,
You choose camera as if you were going to fly, then choose camera setting ( little gear ) bottom right
Then find picture quality I believe ( you will see 1080p ect ) you can play with this as we'll ( personal preference to you and what you want to capture on pictures/video )
Take care and post if this works, as I am the only other to try this method! Would like to prove it works!
Your friend
Jerry D
USA
( J Dot )
Pic 4 fun: