Other than speaking to his two-year-old daughter by phone, Malik Jackson plans to shut off most of his communication to the outside world this week. It’s his way to focus solely on Sunday’s wild-card game against the Buffalo Bills at EverBank Field, the Jaguars’ first home playoff game since 1999. On Jackson’s boycott list for the next four days is staying off Twitter, Instagram and his other social media accounts. Three seasons ago, when Jackson won a Super Bowl with the Denver Broncos, he said one of his coaches used to mention frequently that NBA star LeBron James would cut off his phone and avoid social media throughout his team’s playoff run. Jackson plans to share that same message with his Jaguars’ teammates, especially to the ones making their first postseason appearance. “If you can disconnect from that (social media) and truly embodied yourself into the whole football world- meaning watching film, getting your body right and just sitting at home and putting yourself in playing situations, it will be help you to be ready,’’ Jackson said. “At this point, everything is important. Of the 53 players on the Jaguars’ active roster, 42 have never been to the playoffs before.