Unlike my HTC Thunderbolt phone which I could choose 3G or 4G depending on my location, I can't perform this same task on the Samsung Galaxy S4 because the button doesn't exist. Only options available in 'Preferred Network Mode' are: 1-Global, 2-LTE/CDMA, or 3-GSM/UMTS. There is not an option to choose either 4G-LTE or 3G-CDMA (eHRPD).
The location I work around has 4G network service, but at home I only have 3G network service. With my HTC Thunderbolt that was not a problem because I could manually switch between the network types depending on which service was available. However with my new Samsung GS4 that cannot be done and the phone doesn't know I don't have 4G service but remains in that mode which means I have no access to network as I would in 3G mode.
It's a shame I paid $700 for a phone that doesn't offer the flexibility to utilize available network resources. Has anyone figured out how to combat this problem, or does anyone know of a way to 'UNLOCK' Mobile Network Mode settings? I love this new Samsung GS4 over my old HTC Thunderbolt, but I don't like that options available to me in one device is not available in the other device.