Hi there,
Sorry to hear about the trouble that you see with rendered video.
Which Adobe application have you used to render the video? What is its file format? How did you transfer it to your phone? What is the specification of your mobile? Which application are you using on your phone to view the video?
Also, let us know the application versions used in this process.
We're here to help, just need some more info.
Thanks,
Ranjisha