: After rebooting, go to Settings > About to confirm the "Build Number" or "Firmware Version" reflects the 1.20 update.
To help me tailor any further technical advice, could you share a few details about your setup?
While the hardware always supported HDR10+, the software decoding was broken. The new firmware updates the underlying video decoder (Vdec) module. Now, streaming apps like Plex, Kodi, and VLC can properly map HDR10+ metadata, resulting in better contrast and color accuracy on compatible displays.
Updates PowerVU and Tandberg keys automatically without requiring manual softcam key edits.
If you are looking for the latest software for Sunplus 1506TV or 1506HV, check the Track And Play YouTube channel for potential 2025–2026 updates, as mentioned in this YouTube video. What’s New in the Sunplus 1.20 Update? Sunplus Box Tv 1.20 Update
This could mean your specific device does not support user-initiated updates, or the option is hidden. On some models, you might need to enter a specific code or password, which is sometimes 0000 in the factory settings menu.
Source the official Sunplus_Box_TV_V1.20.bin file from your specific box manufacturer’s verified support portal. Ensure the chipset ID matches your hardware exactly (e.g., Sunplus 1506G, 1506T, or 1507A).
Download the specific update.zip or firmware file provided by your device vendor.
If the update process fails or your device gets stuck, the first step is to remain calm and . Some devices, especially those with Sunplus chipsets, allow for a "forced" update procedure. : After rebooting, go to Settings > About
If the box hangs after the update, try a hard factory reset using the physical buttons on the box or by flashing the firmware again.
: If the update fails and the box won't boot, try repeating the manual USB flash with a different USB drive.
A progress bar will appear. Do not touch the remote or turn off the device. Once completed, the receiver will automatically reboot. Troubleshooting Post-Update Issues
The is overwhelmingly positive for the majority of users. If you use your box for: The new firmware updates the underlying video decoder
💡 Never download a firmware file from an unverified forum or website claiming to be a "universal Sunplus update." Only install files provided directly by your specific device seller or manufacturer.
Select the correct firmware file from the screen and press OK .
Major firmware updates often wipe cached server settings. Go to your multimedia or network menu and enter the secret access code (commonly , 1506 , or 2507 ) on your remote to re-reveal hidden configuration menus like Vanilla, Xstream, or Nashare.