I have been able to get 4G speeds on their network for almost 2 months, and then it switched to 3G speeds (~240kbps for downloads). I asked the tech support wtf is happening, and the guy came up with some bull###t explanation, why my phone cannot possibly run 4G. I do not have a feeling he knows what he's talking about because when I kept asking him what standard must the phone support for 4G speeds, he kept saying "it must run 4G on 1700 band". After I kept pressuring him, he said "HSDPA+ 1700".
He also mentioned that people are getting 4G speeds on their network with iPhones from AT&T, until the "system recognizes" and then they somehow down to EDGE. It makes no sense to me whatsoever, how could a phone that doesn't support frequency on which network is running could run 4G at all, like, EVER.
Does anybody here know about the intricacies of the 4G networking to tell:
* if Samsung Galaxy S 4G does indeed support 4G on whatever belongs to mysimplemobile?
* is there even such thing as HSDPA+ 1700MHz, and does SGS4G support this?
* is it possible that a phone legitimately runs at 4G speeds for months, and then out of sudden stops doing it without any foul play from operator?
* is it possible that the phone runs 4G on a network that does not even support their band (like this iPhone thing)
Here's a quote from the tech support email:
Thank you for your interest Simple Mobile. We are responding to your
We were able to speak with you on October 28, 2012 (9:25 PM EST) at
*********. You were informed that the reason that your data speed
runs only with 3G is because your phone is not a supported handset for
We understand that you were able to use the 4G speed these past few
months. You were informed that this case is similar with our iPhone
users. During activation, the network does not know the phone model the
SIM card is inserted into. The network sends data throughput through
multiple frequencies in order to determine the frequency the handset is
running into. Once the network realizes that the handset does not work
with 1700 MHz bands, it sends the appropriate data speed which is 2G.