apology, m new to iphone world.
all contents were erased in my phone somehow and the carrier is not unlocked. now it shows apple logo only. previously i was using iOS 4.0, is there any way to fix it???
So it was JB and unlocked.
If you dont have SHSH's saved for at leat 4.0.2 or lower then your unlock is gone and you'd have to restore to 4.2.1
Never hit that erase all content button again.