Go to Settings and select "Software Update" to check for new updates and update.

If no updates are available, you can select "Factory Reset" or "Back to previous" in Settings.

"Factory Reset" will reset the Launcher to version 3.0 Beta.
After resetting, you will need to redownload the content.

"Back to previous" will revert the program to Launcher version 2.7.0.9.

If the Launcher program does not launch when you turn on your device, an error occurred during the program installation.
In this case, you will need to reinstall the program.

Reinstall the Launcher program by referring to the link.
SMT 24-inch) https://gunpower.com/en/bbs/board.php?bo_table=notice&wr_id=21
SMT 32, 50-inch) https://gunpower.com/en/bbs/board.php?bo_table=notice&wr_id=22

Once the program installation is complete, run the update.