Buyers of Motorola's Xoom tablet who want to move from 3G to 4G when that option is live will need to mail the device to Motorola for a hardware upgrade, according to Verizon. Lance Whitney is a ...

Most phones rely on 4G LTE for the bulk of their service these days. Even 5G devices spend a good chunk of time on the older, more reliable network. What happens if 4G LTE isn’t working on your phone?

Sprint and HTC have jointly announced summer availability of what they claim is the world's first 3G/4G Android handset - HTC EVO 4G - exclusively from Sprint. Save my User ID and Password Some ...