Go to Menu > System Information to confirm your hardware is indeed DVBS-1506LV-V1.0-OTP . Installing the wrong firmware can "brick" your device.
Enhanced support for M3U playlists and improved streaming buffer speeds. Dvbs-1506lv-v1.0-otp Software 2023
Because the boot ROM is One-Time Programmable: Go to Menu > System Information to confirm
After reboot, check:
: Always backup your current "Dump File" to a USB drive before attempting an update. USB Method : Place the Dvbs-1506lv-v1.0-otp Software 2023