Hello, I recently purchased an unlocked GS5. As of yesterday I have not been able to connect to my mobile service provider data plan. I am not getting any bars even though before I was getting service in the same area. The connectivity is non-existent. I have gotten a new sim and all so I know the actual service is working but for some reason my phone will no connect at all. I have even factory reset the phone. Gone through the settings etc to no avail. I am wondering can some help me figure out how to fix this issue and get the phone to recognize the sim and mobile network? Thank you!