Since the Sunplus Box TV 120 is not an official "branded" device like a Fire Stick or NVIDIA Shield, you cannot rely on an over-the-air (OTA) automatic update. You must perform a manual "Local Update."
Step 1: Identify Your Exact Firmware Version
Step 2: Source the Correct Free Firmware
Step 3: Prepare a USB Drive
Step 4: Install the Free Update
The term "Sunplus Box TV 120" can be slightly ambiguous because many generic TV boxes share similar naming conventions. Installing the wrong file is the biggest risk. Here is how to find the exact file you need:
If you own a Sunplus Box TV 120, you may be looking for a firmware update to fix bugs, add new features, or rescan for channels after frequency changes. The good news is that updates for this chipset are often available for free. The bad news? Sunplus no longer provides direct consumer support, so you need to know where to look and how to do it safely. sunplus box tv 120 update free
After the update, your box is reset to factory settings. You must reconfigure it.
A significant portion of the search volume regarding Sunplus updates relates to "PowerVu" or "Biss" key rolling—software modifications that allow the decryption of specific satellite feeds without a subscription card.
Modern satellite feeds use protocols like MPEG-4 or advanced audio codecs (AAC, E-AC3). The free updates for the Sunplus Box TV 120 include these codecs, ensuring you hear sound on HD channels. Since the Sunplus Box TV 120 is not
You will need:
Procedure:
After reboot, go to Menu → Factory Settings → OK → Confirm to clear any old channel data, then rescan your satellites. Step 2: Source the Correct Free Firmware
Yes, in most cases. However, "free" here means using community-sourced firmware or generic Sunplus reference software—not an official OTA (over-the-air) update. The TV 120 runs on the Sunplus 1506C or 1508A chipset, which was widely used in many low-cost FTA receivers. That means firmware from similar models often works.
