The Harman Kardon BDS 570 is a home-theater-in-a-box receiver and Blu-ray player that occasionally receives firmware updates to improve device stability, add features, and fix bugs. This guide explains why you might update the firmware, how to check your current firmware version, step-by-step update methods (USB and network where applicable), troubleshooting, precautions, rollback considerations, and tips for getting support. Assumptions: you own a functioning BDS 570, your TV and playback devices work, and you have basic comfort with copying files to USB drives and navigating on-screen menus.
Initiate: Select USB. The receiver will search for the update. Confirm by pressing OK. harman kardon bds 570 firmware update
| Error Code | Meaning | Solution |
| :--- | :--- | :--- |
| ERR 010 | USB drive not detected | Reformat to FAT32. Use smaller drive (4GB). Remove hub. |
| ERR 021 | Power interruption during update | Critical. Do not turn off. Repeat emergency recovery (Method 2). |
| ERR 033 | Checksum mismatch | Redownload the .bin file. File is corrupted. |
| HANG at 50% | Bad sector on NAND flash | Wait 30 minutes. If no change, the NAND chip is failing. Unit needs main board replacement. |
| No Display after update | Video output reset to 480p | Connect via composite video (yellow RCA). Go to Settings > Video > HDMI Resolution > 1080p. | Harman Kardon BDS 570 — Firmware Update (Detailed
After the reset, turn off the main power switch on the rear panel for at least 10 seconds before turning it back on. BDS 270/BDS 570 - Harman Kardon Initiate : Select USB
Transfer Files: Extract the downloaded zip file and copy the folder (usually named UPG) directly to the root of the USB drive. Initiate Update: Insert the USB into the front-panel port. Navigate to Settings > System > System Upgrade > USB.
Early firmware versions on the BDS 570 were notoriously slow—up to 45 seconds to load a DVD. Later updates optimized the disc caching and Java-based menu processing, cutting load times by nearly half.