I had someone trying to tell me that the DNA was no longer able to be used AT&T or Tmobile since the bootloader was locked. I knew this was not the case because locked bootloader and carrier lock are not the same thing. So i wanted to prove my point, used a coworkers AT&T sim card and added a new APN for AT&T. Went smooth and had everything working on AT&T, but had problems once switching back to Verizon. I was no longer able to get data working, no matter how many reboots I did. I looked at the APN settings, the stock one was no longer there. I reset back to defaults and this still did nothing for me. I searched on google and came across a page to re add the Verizon APN, so data could be restored for Verizon. Just wanted others to know so they don't freak out. Having problems going back to Verizon on your Droid HTC DNA?