I am hoping someone out here can help me. I have been searching all over to try and downgrade my BB8330 with Sprint from the 4.5 OS to the 4.2 OS. I have had nothing but problems with the 4.5, but cannot find 4.2 ANYWHERE!Someone please help! Thank you! (I have searched the forums here, Blackberry.com and even contacted my local Sprint store--no luck)