At first buy a internet pack.

Then make a setting like this:

Name:Hacker Burhan
APN:internet
Proxy:141.0.11.253
Port:80

Then download the opera mini.
Click here to download the operamini

Then open you data usages and restrict background data.
Then open the opera mini use protocol http without it your data will automatically gone.
Then use free for 120 mb.To download bigger file than 10 mb use hideme.be. Bye and enjoy.