Where to get the firmware and how to flash the projector, Android vers

I have one of the versions of DBPOWER T20 - the projector "RUISHIDA M1 Ultimate 1500 Lumens Smart Projector" on Android 4.4.4. Recently, the projector has stopped running. After turning on the projector, the cooling fan turns on, the lamp turns on and the Android screen saver is projected, but the download does not go further. Tell me where to get the firmware on the projector and what is the algorithm for flashing the projector. Or maybe you can somehow disable the download of Android, I have a suspicion that the native firmware without Android remained in the projector