Since "Sunplus Box Tv1 20-" appears to be a truncated or generic identifier often found on the labels of budget Android TV boxes (commonly featuring Sunplus chipsets like SP7350 or similar), this guide focuses on the general procedure for upgrading firmware on Sunplus-based TV boxes.
sunplus_signed_bootloader.imgsunplus_signed_system.imgfactory_update_param.aml or uImage_recoveryTo upgrade the firmware on a Sunplus TV1 box, you can typically use either an automatic over-the-air (OTA) update through the settings or a manual flash using a USB drive or PC tool. Method 1: Automatic System Update (Online) Upgrade Firmware Sunplus Box Tv1 20-
Use this if the device is totally dead (bricked) or you are downgrading. Since "Sunplus Box Tv1 20-" appears to be
Identify the Hardware Version: Navigate to Menu > System Settings > Information. Ensure the firmware matches your specific chipset (e.g., Sunplus 1506G, 1506TV, or 1507). Using the wrong file is the primary cause of device failure. sunplus_signed_bootloader
Troubleshooting Common Issues