Use APKPure App
Get AutoFan for Teyes (Demo) old version APK for Android
Set the fan to work automatically depending on the temperature.
NOT for original Teyes CC3! NOT suitable if you use external sound amplifyer connected to A1 pin (AMP_POW)!
Supported devices are: Teyes SPRO, Teyes CC2, Teyes SPRO Plus, Teyes CC2 Plus, Teyes CC2L, Teyes CC2L Plus, Teyes X1, Kingbeats K1, Kingbeats K1+, Kingbeats K2, Kingbeats K2+, Other UIS7862, SC9853i, SC9863a head units (not TS9/TS10/TS18).
Set the temperature range to make sure the fan works only when it is needed.
You can use fully functional version for two weeks.