Edited by UMIstake at 2015-9-11 21:01 \n\n
It supports in fact, you're just not able to choose that resolution. It's a youtube issue that affects many Android phones, not only the eMAX but can be solved. Read this Guide
There is no problem here. In the past, I have encountered similar problems while exploring security patrol company in my phone. The option was disabled when I explored the settings. The SD card was automatically saved when I enabled the feature. This will allow it to function properly again. Exploring the settings properly will lead you to it.