Well I finally exchanged the S4 for a brand new one yesterday morning. They keep saying that it could be fixed but it was my seventh visit there. The closest tmobile store is in a mall so by the time I find a place to park and walk in. I am even more unpleasant then normal also luckily or unluckily for me I'm a big scarry looking guy so they didn't argue much. Everything seemed fine until today when the 4G icon disappeared and the E is there again. Below is a picture I know it's not a very good one because I took it with my old precedent.
I didn't think this would happen again especially now that I have a new S4 but here we are. The phone worked perfectly for about nineteen hours I turned the 4G on and off several times. I even turned the phone off overnight and this morning it worked perfectly and for most if the day. I was on the internet when someone called me and ever since then the 4G and the speed has disappeared. I had 12.8 MBps now I'm lucky to 1 Mbps I can't figure it out everything about the phone is completely stock. By that I mean I haven't changed anything on it so it's the same as it was after they set it up at the store. The only thing that I can think of is that I use airplane mode to turn everything off that's my only guess. On my precedent I used airplane mode to turn on & off the service and network all the time is the S4 different? Also is there a way to reactivate the 4G LTE?
Thanks
(sincarafan) I successfully set up the.alternate APN but it didn't help the data speed.
Another thing that happened was the guy at the tmobile store said to leave the phone on and use it until the battery was dead. After that then I could charge it up he claimed it would make the life of the battery longer is that true?