ET30S stock firmware
I recently bought the ET30S projector (without internal battery) and I found on google this page with an update: https://forum.aunstore.com/download/aun-et30s-android-6-0-firmware
So I followed the same steps described here: https://forum.aunstore.com/community/aun-akey6s/aun-akey6s-android-6-0-stock-firmware-upgrade-build_200810/ but then my projector is not turning on, it shows a black screen without the android logo and the light coming out from the lens is very soft compared with when it was working.
I was wondering if there is a way to reset to the stock firmware.
Did you exactly follow the procedure? And are you sure you have the S version (Android) and not the basic version?
J'ai eu le même problème et je ne peux pas envoyer de mail a aun....