CDMAPCS from xda posted the following at [Only registered and activated users can see links. ]

HTC Super SPC Code
is "tdwaop" ,

use qmat or cdmaworkshop send

"41 74 64 77 61 6F 70"

after ,you can read or change digit SPC

test 6700, 6800, 6900, 6850, 6950, tp2 cdma IS OK.