Visiting a national park can be a serene escape from city life, but it often comes with the challenge of limited cell phone coverage. I've experienced my phone stuck on SOS mode in areas with no cell service, and it can be nerve-wracking initially. This indicator means your phone can't connect to your usual network but can still make emergency calls if absolutely necessary. To prepare for this, I always download offline maps and bring a portable charger to keep my devices powered. It's also wise to inform someone about your whereabouts before heading into remote trails. In some parks, emergency call boxes or ranger stations can provide help when your phone fails. Using apps that work offline or satellite messengers are excellent ways to stay connected when traditional networks fail. Experiencing SOS mode is a reminder to embrace the digital disconnect while respecting nature and staying prepared for emergencies.