the 4.5.629 update.zip has been out for a month, see links below
if you had 4.5.608 it should have worked,
recheck SBF, maybe try ezSBF
read these
Bricked. (SBF after .629 update, bootloader, etc)
Another update?
.629 Root Exploit Development
http://forum.xda-developers.com/showthread.php?t=1588776
if you had 4.5.608 it should have worked,
means wrong SBF was flashed, most common reason is you has 4.5.629, or you did not flashed 2.4.29 SBFMEM_MAP Blank
Service Req'd
recheck SBF, maybe try ezSBF
read these
Bricked. (SBF after .629 update, bootloader, etc)
Another update?
.629 Root Exploit Development
http://forum.xda-developers.com/showthread.php?t=1588776