Hey everyone, first post on here. I was wondering if someone could help me figure out how to fix this issue. When calling, my phone says "not registered on network" or "mobile network not available", and when people text me, I get them hours later. Trying to send messages has become as difficult as the 7 trials of hercules... Of anyone could help, it would be appreciated. I do not have the money to replace my phone, sadly, so this is quite urgent.