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With the device unplugged, plug in the USB drive. Then plug the device back into the mains power. The device should power on automatically and the update process should start within a few seconds. An LED on the USB drive will blink rapidly, indicating activity.
Restart the TV and wait for the initial boot, which may take longer than usual.
Completely disconnect the TV power cord from the wall outlet.
: For Wisdom Share TV owners who cannot upgrade through the system settings menu, the forced USB update method (holding the power button while plugging in the TV) has successfully resolved issues across multiple models. cvte msd338 512m update upd
Press and located directly on the frame/bezel of the television (do not use the remote control).
Primarily used for smart functions; some configurations support basic 0.3MP fixed-focus camera modules . The Firmware Update Process
Updates the internal SSL certificates to ensure pre-installed apps (Smart YouTube TV, browser) can still connect to secure servers. Root Access Toggle: Many custom With the device unplugged, plug in the USB drive
Continue holding the power button until you see a prompt on the screen indicating an update or a progress bar (often blue or green). Release the button.
If you provide the exact device model number or a link to the UPD file you have (or the failure symptoms), I can give a focused step-by-step tailored to that device.
Understanding your hardware constraints ensures you select the correct update package ( .upd or .bin ) matching your specific LCD panel configuration. Specification Mstar MSD338 / MSD338STV5.0 RAM Capacity 512MB DDR3 Storage (ROM) Operating System Android (Typically 4.4 to 7.0 customized distributions) Connectivity Wi-Fi (2.4GHz), LAN, HDMI, USB 2.0, VGA, LVDS Interface Firmware Extensions MstarUpgrade.bin or custom .upd script files Why Use the Manual .upd or .bin Update Method? An LED on the USB drive will blink
Plug your USB drive into a computer. Right-click the drive and choose . Select FAT32 as the file system and click Start. Step 2: Extract and Copy the Firmware
Follow these structured installation steps to update your CVTE board via a USB storage device. 1. Prepare the USB Flash Drive
Before attempting to flash your television mainboard, it is essential to understand its internal framework to ensure you do not cross-flash incompatible software. Component / Parameter Specification / Detail Mstar MSD338 Go to product viewer dialog for this item. MSD338STV5.0 Go to product viewer dialog for this item. System RAM 512 Megabytes (DDR3) Storage Capacity 4 Gigabytes eMMC Flash ROM Default Operating System Android 4.4 KitKat (Optimized Custom TV Edition) Supported Connections HDMI, VGA, USB 2.0, AV Composite, LAN, Wi-Fi Antenna Panel Voltage Selection Jumper-configurable to 5V or 12V Symptoms That Require a .upd Firmware Reflash
CVTE (Guangzhou Shirui Electronics Co., Ltd) Chipset: MStar MSD338 RAM Configuration: 512MB DDR3