Paano po masasabi na blocked ung sun sim? nangyari kasi sakin kanina around 1130PM biglang nawala ung data signal ng 4g. then kahit na e 2g or 3g ko walang data signal although may normal signal naman for texting and calling. pag blocked ang sim po ba data signal lang ang nawawala? bumabalik po ba sya after ilang hours?