Hi good day, i have a 3gs 8gb with serial 88103 on IOS 5.0.1. From the information i've gathered it was made in 2011 the third week. the baseband is 5.16.05 and i wanted to know if i could downgrade to IOS4.1 then flash with ipad baseband and unlock. this phone has the new bootrom. Help plz. Thank you!