This glitch only works on a Samsung phone, you need to enter imgflip, find a comment with 0 upvotes, it cannot be your own, press the upvote button, quickly press the arrow at the top of your screen and enter your profile, press the back arrow, you will get what I call a antivote on the meme, the upvote sign will be lit, but the image should have 0 upvotes, remove the antivote by pressing the upvote sign, the image should have -1 ups