オリジナル投稿者： loucy cusin ,
My iPhone 5s have experienced the same case, but for my iPhone, i thought it's the storage probelm, as it's a 16GB iPhone. The black screen problem can be fixed temporary by a restart. i say temporary, because it will happen again, after several days. I finally fix my iPhone by cleanup all junk files and temporay files and get about 5GB storage back. Now i keep it have about 3GB free stroage space, and it works normally.