I have a C205 pico mini projector firstly I cannot register it with the serial number

POUPSVINCE

Hello

I have a C205 pico mini projector firstly I cannot register it with the serial number on the ACER website for some unknown reason.

Especially stains appear during the projection and I don't know how to clean a mini projector (I found tutorials for large ones but not for mini ones) please help me

[Edited the thread to add issue detail]

Puraw

https://community.acer.com/en/discussion/701974/acer-projection-stains-c205

Send a private message with the serial number to one of the moderators of this forum.

Get a special lens cleaner brush or lens wipes to clean the lens, never touch the glass with your fingers to prevent fingerprints. Don't touch the LED.