Help with Cricket Flashing in Chicago

[sollyd]

Hi;
OK, I've searched for an answer but talk about conflicting info....
I have a SPRINT HTC Touch 6900 that I was told would work with Cricket. I've ported the number to Cricket and Flashed to a Cricket ROM. Cricket enabled the ESN, I've changed the MDN, MIN and SID/NID and uplaoded the PRL. When I do, it says "Digital Roaming" but when I *228, it goes to VERIZON Prog. Can't get this thing to work! I've heard that I cannot use a dual band phone in Chicago since they are set up with Tri band network??? Please help and don't give the "google is your friend" answer. There's way too much out there that points in 20 directions. Thanks!