The firmware version 1.26.02 applies to all HTB3510, HTB3540 and HTB3570 except /55, /78, /93, /94

v1.26.02 includes the following changes:
  • Enhance playability of MP3 files
  • Enhance playability of Blu-ray discs
  • Improve performance related to Wi-Fi
  • Fix bug related to speaker setup
  • Fix bug related to ID3 display in Russian for MP3 files
  • Fix bug related to subwoofer
  • Fix bug related to bass
  • Fix bug related to Russian on-screen display
  • Import Smart TV 2.0

Kindly download the software at

Note: After upgrading with the latest firmware, disconnect the device from power supply. Wait for a few minutes and then reconnect to power supply.