Iphone 3gs iOS 5.1.1, now stucked at Searching...

[iphone_newbie]

i got an i phone 3gs 8gb new boot rom, set of 2010, when i bought it it's already jailbroke, my sister borrowed it and accidentally upgraded it to 5.1.1 iOs from 4.1, so i have watched how to jail break on youtube, but i got stucked to Sim searching after the ultrasnow, i got a 06.15.00 ipadbaseband but on the jail breaking i didnt click on the install ipad baseband! does the 5.1.1 ios automtically install the 06.15.00? and now, when i put on a sim, it's stuck on "searching"... do my phone baseband radio is bricked? is there anyway to fix this?

 

[ThaKrazyOne]

Run the JB program you used to in the first place. If the phone already has the 6.15 BB then use Redsn0w to flash the BB back down to 5.13.4 so it will be recognized as a legit BB and will allor your GPS and Locations work properly as well.