>>the carrier's fault As I said the behaviour is present in other operators too. I've asked a friends on Idea and Vodafone too(with Android). I just called a f

>>the carrier's fault As I said the behaviour is present in other operators too. I've asked a friends on Idea and Vodafone too(with Android). I just called a friend(before writing this comment) and he confirms that he is not facing this issue on Idea+iPhone5(he faced the issue on Nexus S with Airtel and then Idea too). I had asked a friend with a Lumia and on Airtel and he said he doesn't have to do this. >>carrier sends usage alert when you "turn off" data + bad connection that keeps.. No, it sends whenever there's 3G transaction and the usage period ends. I've observed that when I am using browser, I usually get the alert after I close the browser. Airtel technical team(I was told they were the tech team) also confirmed that it is based upon usage and usually many apps/features rely for background syncing/net-access solely upon 3G/data so that is what makes the number of pop-ups too much. They also confirmed that it happens even when the phone is continuously on WiFi(I concur). >>There are a few apps that convert USSD Tried. Actually the most famous one is developed by an Indian guy(makes me think he was a victim himself). Didn't work. Planning to root it. Google will push probably the last upgrade with 5.0(if at all). Will see if there's any ROM that handles it.