some of my asked me that why we are getting downloading errors?
and also i listen most problem belongs to you tube .there problem 
is that some times you tube is playing in mobile and some times not 
playing?

• coming to first question if you are downloading file from one sim

suddenly one call is came then automatically the downloading will 

be paused .and then your changed the sim then your clicked on

resume then we can get downloading errors.that means in which sim

we are given instrounction to download in that sim only you to resume

your file.

• coming to second question in which sim your downloaded youtube 

application in that sim only you can play you tube .

like this question you can me .