I have successfully "Hactivated", "JB" and "Just Boot" iphone 3gs, I haven't downgraded baseband. I upgraded entire Cydia, installed P0sixpwn and Ultrasn0w, but I am facing "No Service" or Network "Searching" issue. I also have Wildcard Activated SAM installed on iphone 3GS (ios 6.1.6, Baseband 6.15) yet "NO SERVICE".
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