In the world of budget-friendly Android TV boxes, the Sunplus Box TV 120 has carved out a niche for itself. Known for its affordability and basic streaming capabilities, it remains a popular choice for users who want to turn any standard television into a smart TV without breaking the bank.
However, like any electronic device, performance can degrade over time. Apps may lag, bugs may appear, or security vulnerabilities might emerge. This is where a free firmware update becomes essential. If you’ve been searching for a way to update your Sunplus Box TV 120 at no cost, you’ve come to the right place.
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
Settings > Device Preferences > About > Status.Step 2: Source the Correct Free Firmware
"Sunplus SP chipset Box TV 120 firmware download free."Step 3: Prepare a USB Drive
.img or .zip firmware file (do not rename it).Step 4: Install the Free Update
Settings > System > System Update > Local Update.Warning: Incorrect firmware updates can brick devices. Proceed at your own risk. This guide assumes you accept that risk and that you are updating a SunPlus-based TV box model labeled “120” (consumer Android/TV box with SunPlus SoC). If your model differs, stop and verify model number on the label.
What you’ll need
Step 1 — Identify exact model and current firmware
Step 2 — Obtain the correct firmware (free)
Step 3 — Prepare update media Option A — microSD / USB update (most common)
Option B — USB-to-Serial or USB flashing tool sunplus box tv 120 update free
Step 4 — Boot into update mode and flash Method A — SD/USB automatic update
Method B — Manual recovery menu
Method C — PC flashing tool
Step 5 — After update
Troubleshooting (brief)
Safety tips
If you want, tell me the exact model/build string from Settings → About and I’ll give model-specific file names and steps.
This is the most common question. Sunplus is primarily a chipset manufacturer (producing the SPHE series of processors), not the direct seller of the "Box TV 120." The box is typically manufactured by third-party OEMs in China. Consequently, over-the-air (OTA) automatic updates are rare.
However, free manual updates are absolutely available—you just need to know where to find the firmware files.
You will need:
.img or .zip file)Satellite TV providers frequently change their encryption keys to prevent unauthorized viewing. If your Sunplus Box 120 uses old software, it cannot recognize the new keys. Consequently, your screen turns black, or you see a message like "Scrambled Channel." A free update patches this handshake.
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