Well what I have done is this: I booted my phone back up, went into Airplane mode for like 2 seconds, turned off airplane mode and my TWAS is 0% all day. So I don't think it takes it long at all and doing the airplane mode trick sure is a lot easier than the other way. I was simply checking to see if what I was doing was right. BTW, yes, my phone does have over 50% TWAS without the Airplane mode trick. Thanks!