Upon waking up on August 1 I noticed that our little Samsung 4G LTE device had a light on indicating 4G service. This was a surprise to me since we had not done anything or moved the device at all. 4G was awesome and a welcome change from 3g. Well, this morning (8/3) the device had reverted back to 3g service. Why???? Was it a test by Verizon or just a cruel joke? How can we get 4G back?