1. In proxy type select real host and in proxy server input free.facebook.com/zero_balance_redirect?operator=airtel_ng
2. In real proxy type select default or http and port 80
3. In option menu don't tick connect through http proxy and no ip and port in psiphon handler.
4. Select USA or UK or Canada in region.
5. Use airtel default system settings and connect.
Note: if this latest free browsing cheat didn't work for you, try to clear cache on your psiphon handler and in the system settings use internet.ng.airtel.com instead of internet.ng.zain.com.
If you have any question or problem connecting your airtime N0.0k Unlimited free browsing cheat for July 2016, feel free to comment.