The Quran on mobile is not printed. These are just some of the dots that come to light. It is permissible to recite the verse without touching it , even without holding the mobile in one's hand. If you do something good on the same mobile, it will be good. If you do something sinful, it will be a sin. Not all of them will become a sin because they are combined in one instrument. For example, if a person practices bad things in his mind or mouth and then stops it and practices good things at that moment, will not his sins and rewards be both? Suppose an instrument is almost like that .