Hello everyone my name is Gabriel and im new to these forums and hopefully over time can learn from this community of phone savy folk. Alright so where do I begin? About 3 weeks ago I bought a unlocked sprint galaxy s7 edge phone from my bro in law and had absolutely no issues I called tmobile and gave them my imei # this way they can register my phone to their network. They also gave me apn settings to manually put myself after all was done phone worked perfectly until I received a software update prompt. I went ahead and downloaded to update and that's when my phone started to give problems. The first problem was that I couldn't receive or send multimedia textes or surf the web at all unless I was on wifi, as of today im not able to receive or dial out. What I find strange is that every time I put my phone to sleep and power it back on on the top left hand side I see the tmobile network which then disappears. I decided to take the phone to Tmobile and see what they said and it was to no avail all they did was give me a new sim card. I also went to sprint and they were no help. Last but not least I was able to go to a Samsung experience store were they reflashed my phone and nothing. My question is has anyone ran into this issue and if so can I just root the phone with a stable rom to make this work. Im really sorry for any run on sentences and or lack of a paragraph. Any help would greatly be appreciated!