Firmware Change Update - On Blackberry 9790 Bold ((top))

: Some users report that certain updates may require an active BlackBerry Internet Service (BIS) connection, though many technical guides note this is not strictly necessary for manual Loader.exe updates.

Q: Can I downgrade my firmware version? A: No, downgrading your firmware version is not recommended and may void your warranty. Firmware Change Update on BLACKBERRY 9790 Bold