BOOX Help Center Product Support Software Issues Why does the screen jitter when you play videos in Speed Mode on Mira? Table of Contents When the E Ink screen of BOOX Mira is running at high speed, the non-white and non-black areas, such as gray areas, require the charged particles to jitter so as to display grey content. Therefore, jittering will occur while playing videos. We specifically provide [Video Mode] for video playback scenes, which can solve the problem of screen jitter when refreshing. Please choose Video Mode when you play videos.