: If the unit fails to pick up paper-based manuals or "handy" guides from the tray (rare for home theaters), it usually indicates a mechanical tray fault rather than a firmware bug. HT-C350 | Samsung Supporto IT
Samsung provides region-specific support pages, but the firmware version is generally consistent across global models: HT-C350 Firmware and Manuals . Samsung Support India: HT-C350 Downloads . Samsung Support Australia: HT-C350 Support Page . Required Files for Update Upgrade File HTD-C350WWB-1003.1 May 11, 2010 MICOM File HTD-C350WWM-1005.0 May 11, 2010 How to Update HT-C350 Firmware via USB Ht C350 Firmware Downloads
Rollbacks are possible but not recommended. You will need the older firmware file saved locally. Note that some hardware revisions disable downgrading due to security bootloaders. : If the unit fails to pick up