Cvte Msd338 512m Smart Tv Update Download

if [ -f /tmp/update/pre_update.sh ]; then echo "Running pre-update script..." >> $UPDATE_LOG sh /tmp/update/pre_update.sh >> $UPDATE_LOG 2>&1 fi

cat > /etc/systemd/system/cvte-update.service << EOF [Unit] Description=CVTE MSD338 OTA Update Service After=network.target

[Service] Type=simple User=root ExecStart=/usr/bin/python3 /usr/local/bin/update_service.py Restart=on-failure RestartSec=10 cvte msd338 512m smart tv update download

[Install] WantedBy=multi-user.target EOF

# update_gui.py
import lvgl as lv
import threading
from update_manager import CVTEUpdateManager
class UpdateGUI:
def init(self):
self.update_manager = CVTEUpdateManager()
self.current_screen = None
self.progress_bar = None
self.status_label = None if [ -f /tmp/update/pre_update
def create_update_screen(self):
    """Create the main update screen"""
    self.current_screen = lv.obj()
# Title
    title = lv.label(self.current_screen)
    title.set_text("System Update")
    title.align(lv.ALIGN.TOP_MID, 0, 20)
# Current version info
    version_label = lv.label(self.current_screen)
    version_label.set_text(f"Current Version: self.update_manager.current_version")
    version_label.align(lv.ALIGN.TOP_LEFT, 20, 80)
# Check update button
    check_btn = lv.btn(self.current_screen)
    check_btn.align(lv.ALIGN.TOP_MID, 0, 150)
    check_label = lv.label(check_btn)
    check_label.set_text("Check for Updates")
check_btn.add_event_cb(self._on_check_update, lv.EVENT.CLICKED, None)
# Progress bar (initially hidden)
    self.progress_bar = lv.bar(self.current_screen)
    self.progress_bar.set_size(400, 20)
    self.progress_bar.align(lv.ALIGN.CENTER, 0, 0)
    self.progress_bar.add_flag(lv.obj.FLAG.HIDDEN)
# Status label
    self.status_label = lv.label(self.current_screen)
    self.status_label.align(lv.ALIGN.BOTTOM_MID, 0, -20)
    self.status_label.set_text("Ready")
lv.scr_load(self.current_screen)
def _on_check_update(self, e):
    """Handle check update button click"""
    # Disable button during check
    btn = e.get_target()
    btn.add_state(lv.STATE.DISABLED)
# Run check in background thread
    thread = threading.Thread(target=self._check_update_thread)
    thread.start()
def _check_update_thread(self):
    """Background thread for checking updates"""
    self.status_label.set_text("Checking for updates...")
update_info = self.update_manager.check_for_updates()
if update_info:
        lv.event_send(self.current_screen, lv.EVENT.USER, update_info)
        self._show_update_dialog(update_info)
    else:
        self.status_label.set_text("No updates available")
        # Re-enable button after 2 seconds
        lv.timer_create(self._reenable_check_button, 2000, None)
def _show_update_dialog(self, update_info):
    """Show update information dialog"""
    dialog = lv.obj(self.current_screen)
    dialog.set_size(500, 400)
    dialog.center()
    dialog.add_flag(lv.obj.FLAG.HIDDEN)
# Dialog title
    title = lv.label(dialog)
    title.set_text(f"Update Available: vupdate_info['version']")
    title.align(lv.ALIGN.TOP_MID, 0, 10)
# Changelog
    changelog = lv.label(dialog)
    changelog.set_text(f"Changes:\nupdate_info['changelog']")
    changelog.set_width(460)
    changelog.align(lv.ALIGN.TOP_LEFT, 20, 60)
# Size info
    size_label = lv.label(dialog)
    size_label.set_text(f"Size: update_info['size_mb']:.1f MB")
    size_label.align(lv.ALIGN.BOTTOM_LEFT, 20, -60)
# Download button
    download_btn = lv.btn(dialog)
    download_btn.set_size(150, 40)
    download_btn.align(lv.ALIGN.BOTTOM_RIGHT, -20, -20)
    download_label = lv.label(download_btn)
    download_label.set_text("Download")
# Cancel button
    cancel_btn = lv.btn(dialog)
    cancel_btn.set_size(100, 40)
    cancel_btn.align(lv.ALIGN.BOTTOM_RIGHT, -190, -20)
    cancel_label = lv.label(cancel_btn)
    cancel_label.set_text("Cancel")
# Event handlers
    download_btn.add_event_cb(
        lambda e: self._start_download(update_info, dialog),
        lv.EVENT.CLICKED, None
    )
    cancel_btn.add_event_cb(
        lambda e: dialog.add_flag(lv.obj.FLAG.HIDDEN),
        lv.EVENT.CLICKED, None
    )
dialog.clear_flag(lv.obj.FLAG.HIDDEN)
def _start_download(self, update_info, dialog):
    """Start the download process"""
    dialog.add_flag(lv.obj.FLAG.HIDDEN)
# Show progress bar
    self.progress_bar.clear_flag(lv.obj.FLAG.HIDDEN)
    self.progress_bar.set_value(0, lv.ANIM.ON)
    self.status_label.set_text("Downloading update...")
# Start download in background thread
    thread = threading.Thread(target=self._download_thread, args=(update_info,))
    thread.start()
def _download_thread(self, update_info):
    """Background download thread"""
    def update_progress(progress):
        lv.event_send(self.progress_bar, lv.EVENT.VALUE_CHANGED, int(progress))
        self.progress_bar.set_value(int(progress), lv.ANIM.ON)
try:
        self.update_manager.download_update(update_info, update_progress)
# Show install prompt
        lv.timer_create(self._show_install_prompt, 100, None)
except Exception as e:
        lv.timer_create(lambda t: self.status_label.set_text(f"Download failed: e"), 100, None)
        self.progress_bar.add_flag(lv.obj.FLAG.HIDDEN)
def _show_install_prompt(self, timer):
    """Show install now prompt"""
    self.progress_bar.add_flag(lv.obj.FLAG.HIDDEN)
dialog = lv.obj(self.current_screen)
    dialog.set_size(400, 200)
    dialog.center()
# Message
    msg = lv.label(dialog)
    msg.set_text("Update downloaded successfully!\nInstall now?")
    msg.align(lv.ALIGN.TOP_MID, 0, 30)
# Install button
    install_btn = lv.btn(dialog)
    install_btn.set_size(120, 40)
    install_btn.align(lv.ALIGN.BOTTOM_LEFT, 30, -30)
    install_label = lv.label(install_btn)
    install_label.set_text("Install Now")
# Later button
    later_btn = lv.btn(dialog)
    later_btn.set_size(120, 40)
    later_btn.align(lv.ALIGN.BOTTOM_RIGHT, -30, -30)
    later_label = lv.label(later_btn)
    later_label.set_text("Later")
install_btn.add_event_cb(lambda e: self._install_update(dialog), lv.EVENT.CLICKED, None)
    later_btn.add_event_cb(lambda e: dialog.add_flag(lv.obj.FLAG.HIDDEN), lv.EVENT.CLICKED, None)
def _install_update(self, dialog):
    """Install the downloaded update"""
    dialog.add_flag(lv.obj.FLAG.HIDDEN)
    self.status_label.set_text("Installing update, TV will reboot...")
# Apply update in background
    threading.Thread(target=self._install_thread).start()
def _install_thread(self):
    """Background installation thread"""
    try:
        self.update_manager.apply_update()
    except Exception as e:
        lv.timer_create(lambda t: self.status_label.set_text(f"Installation failed: e"), 100, None)

Release the button once the progress bar appears.

Do not interrupt – even if it takes 10-15 minutes. The TV will reboot automatically.

Downloading the correct file is the most challenging aspect of this process due to the lack of a centralized official portal for CVTE OEM boards.