8UPG_VU_BIOS V4 (Sonic1) - R0290V4

What does it fix?
Fix USB3.0 function issue.

How do I perform this update?
1. Exit all running programs.
2. Download this update and save it to your hard drive.
3. When the download is completed, locate the downloaded file in the location you specified.
4. Double-click EP0000557128.exe to run it.
5. Wait while the wizard updates your software.
6. When the installation is complete, restart the VAIO.

File Info

File Name

  • EP0000557128.exe

File architecture

  • 64 bit

File Size

  • 4.67 Mb

Release Date

  • 18-12-2012