First off, the phone I have was bought on Ebay as an unlocked factory galaxy (G930U). It was supposed to be an"overstock" but it looked flawless and seemed to wrok great, until... I noticed that in some areas, like a hospital where there is wifi, that I could connect, but I could not do anything (no internet or email). I even had some issues with cojnnecting to wifi in my own home. And my kids s7 would have 3-4 bars but I would only have 1 even though we have the same phone and same carrier. I called cricket and they couldn't help. I called Samsung and they said the phone is actually a refurbished t-mobile (G930T) phone and not a factory unlocked phone. This was confirmed by the small writing on the back of the phone, in contrast to the sticker on the box and the info in "about phone" under settings that both say it's a g930U. So the vender has agreed to take the phone back, but I HATE dealing with new phones and I can't do without a phone while the refund goes through. The phone works great other than the netowrk issues (which are MAJOR of course) so if there is a fix, I'd rather do that. I was wondering if anyone has any suggestions as to why my phone wont work properly with networks and/or if there is anything I can do about it in place of sending the phone back to the vender. I hope that's enough info. Thank you.