Thanks all for welcome... So a downgrade from 4.3.3 to 4.2.1 was suggested Is that because Cydia only supports 4.2.1. Firmware? Cydia seems very elusive. Real goal = is to get iPhone 3GS to act as wifi hotspot for my iPad 2 and laptop ( Vaio : XP.... To upgraded to Mac soon).... So process...

Downgrade Not option now. 4.3.3. Location tracking option engaged. 4.3.3 promised battery enhancement but have experienced power drains, big time. Or perhaps from all failed JB's If I choose downgrade, however, what process do I follow and how will it affect my current apps and iPhone...

Luv my 32gb 3GS 4.3.3. :) Fell for 64gb ipad2 (wifi)... Can grow with lte/4g/wimax Need iPhone wifi hotspot/tether capability for iPad companionship AT&T carrier lock... Currently acceptable because BB is 5.16.2 (unlockable) 6.15.0 (unacceptable... No gps). Sn0wbreeze 2.7.3 only known JB...