Is that a known problem that Gingerbread 2.3.3 blocks third party applications from changing APNs. I just got a HTC Shift. It does not have a menu item to change APN. Downloaded APN Backup and Restore from the market. The Restore button is disabled. In the description, the author states that 2.3.3 blocks access to APN settings. How would I adjust APN for the MMS? Should I downgrade? Is that the only solution?