Do you have a specific you're trying to fix with the update, like a USB error or disc reading problem? BBK DV214SI
Historically the main source for official BBK service center firmware.
Flashing the wrong version can cause the player to stop reading physical DVD discs or result in a "bricked" unit where the device won't power on. Always verify your current version in the player's setup menu (usually by pressing on the remote) before attempting an update.
Since the official BBK site has removed many legacy files, you can find archived versions on community forums and technical repositories:
The is a legacy DVD player, and finding official firmware (прошивка) can be challenging as the original manufacturer support pages are often inactive. Firmware Overview & Features
Compatible firmware usually depends on the version sticker on the back of your unit (e.g., SI09.10.1). Where to Download
Some versions improved compatibility with USB drives larger than 2GB.