My girlfriend's phone (Samsung Galaxy SII, stock rom JB 4.1.2 XWLSW, not rooted) was acting weirdly, so I decided to reset the whole thing.
Problem is, since the reset, 3G and wifi connections are working both at the same time. Which is a problem because she has a 500 mb contract, and it seems that the traffic is counted on the 3G connection rather than on the wifi one. The 500 mb have been used in one week and we fear she will be charged a lot if it continues.
I have done some research on that problem, and it seems that everyone try to figure out how to make the two connections active on purpose, and I just want to do the contrary and de-activate it.
I'm hesitating on resetting the phone again, or take this opportunity to root it and install an alternative rom like Neatrom. But before doing so, I'm wondering if any of you would know what to do ?
Thanks in advance for your help.