i bought this 3gs already jailbroken using greenpoison running 4.2.1 firmware 6.15.00 baseband. Its been fine for 8 months. I was deleting unused apps (itunes app) and the phone froze. i forced shutdown and it restarted apple screen then morphed into skull/apple (like it always did) but pinwheel never spun. forced shutdown again and it restarted to applescreen then "connect to itunes". i figured i would factory restore through itunes and the re-jailbreak. restore process completes but then i get the 1015 error. apple website credits error to "liscence agreement issue due to previous jailbrek". Now what? im am technically inclined but have never jailbroken a device. this is my only phone and need to remedy as soon a spossible. Note:needs to be used on TMobile network