Sometimes we accidentally tap buttons or options that we didn`t notice. Flagging is worse because there is no confirmation that will tell before it is tagged as flagged. Unfortunately, there is no unflag button on twitter as of this time. The picture below is a tweet from twitter support. [LINK VISIBLE TO REGISTERED USERS - CLICK HERE TO SEE THIS LINK] So next time, just be extra careful before pressing or tapping options on your device. And by the way. Do not worry if you accidentally flag that media. If the twitter finds out that the media is doing no harm. Then it will not be a problem anymore. Twitter will simply ignore that notification from you.
Read more: I accidentally flagged a pic (media) on twitter how can I undo this? - Thought I was LIKING the pic, but flagged it :: Ask Me Fast at http://www.askmefast.com/I_accidentally_flagged__a_pic_media_on_twitter__how_can_I_undo_this-qna2005443.html#q5426935