Summary: This 4 month old projector suddenly turns off the lamp after 5 minutes. Have called Optoma to ZERO avail. They apparently don't list it on their website either. First Amazon item that failed to deliver.
Summary: Hi, I bought the ML300 Mobile Projector by the amazon in July 2013 and started using in August of the same year. The device worked very well the first three times. After that, when we try to use it to watch a movie, it comes out a message indicating overheating few minutes after using it.
Summary: i bought this projector and only used it a few times.the projector overheats after 10 minutes and shuts down. i cannot use the product at all, no i see it cannot be returned? what kind of a customer service is that ?
Summary: I bought this projector this year Jan. It is giving me hard time to connect to laptops. It regularly gives message "scanning" ,scans all ports HDMI,VGA and gives black screen. It was giving problem from first day but i thought it has loose connection so i ignored. Then I changed the HDMI cable used Apple HDMI cable but problems persist. Now problem became worse enough and it takes 15-20 min. to start projector.
Summary: We held high hopes for this projector, after heavily researching the mini-projector market and trying several other projectors--so much so that we ordered two units. It held the promise of a compact size paired with 300 lumens, USB plug-n-play, auto-keystone, and a reputable brand. It was perfect in every way except for the fact that both units overheated and shut off after 20 minutes. We were never able to get either projector to work for more than 20 minutes at a time.
Summary: Mine went very dim after 14 months. Pretty good while it lasted, but now it's essentially worthless. The rest of the reviewers will find out soon enough, and you know Optoma has to be aware of the problem.
Summary: I own two Optoma video projectors and they are great, but this one was did not perform well at all. First off the unit would shut off saying it was over heating after only 20 minutes. Another time it played and played with no over-heating. Than another time it would shut off after only 10 minutes. I returned this item for a refund.