I had not able to get a data signal at work with my S III; I had been able to with my previous phone, a Droid 2. I was extremely disappointed. I tried all kinds of various setting changes and apps, without improvement. Finally went to Verizon and spoke to them, was told to turn off the phone, in the location I was having trouble with, Turn it back on, dial *228, then #832. I was extremely skeptical. This is supposed to have something to do with getting the phone to "talk" to the closest tower or something. I tried it, and was very surprized that it worked. My work is in the basement of a large building, and is notoriously known for being difficult to get a signal. I paid the fee for breaking my contract with AT & T and came to Verizon because of that very issue (nearly 4 yrs ago). I don't know if this is something that will help others, I'm sure it depends on what the signal problem is. I was ready to get another Motorola phone!