no they dont lock the box.. it just pain in the ass to proceed to the next step if you get continuous of X marked boxes. however, ive gotten a few right off the bat and then re-test, it goes away. it wont do nothing til you do the activation process. most times that a box is already activiated, it wont do this verifying installation but it does, but will pass if you fine tune your dish.
only reason i say this is most people who self install their dish assuming they can be 1/16th off wont harm nothing. in fact, it will bc it has to be dead on that satellite to detect 99 and 103. so basically for you having a birddog or superbuddy, you shouldnt have this problem. just people who do self installs that they THINK they got the 101 perfect, could be wrong.
when it starts for the very first time, it detects 101 and 119... after you select dish set up, it will detect 99 and 103 or your local spotbeam satellite. then the real test come after you activate.
lock your 99, 101, 103 and you'll be fine.
ive gotten where i install a SL 3 and it picks up a SL5 and gives error. then you call DTV and tell them you installed SL3 and its giving you a SL5 on the box, Error 0003 and they will correct it. we've had it for awhile but it seems to be gone now. im assuming software glitch on detecting satellite setup.
most 90% of the time, its dithered 2.00 off and after you get that tuned in perfect, the X boxes will dissappear.