i had ssh blobs of 4.2.1 saved then i ran the tss server put the device into pwned dfu mode and restored into the 4.2.1 cfw it was successful but then i noticed it would not boot out of dfu mode. Then when i tried to restore again it would give me either a 3194 error or 1600 error. So then i booted tethered from redsn0w .96b4
And now it runs successfully on 4.2.1 but the bb is still 5.16.02 but the bb is the least of my worries. Now every time it powers off, rebo
Open tiny umbrella
Click on advanced
Deselect box that says set hosts to cydia on exit
Click apply and close tiny umbrella
Proceed with the custom 4.3.3 firmware restore