If your iPhone remains stuck on black screen after performing a force restart, get its charger and plug it into a power source. Keep your device connected to the charger for about 10 minutes, even if you don't see the charging icon on the display. After the elapsed time, force restart your iPhone again video is for educational purpose only.Copyright Disclaimer Under Section 107 of the Copyright Act 1976, allowance is made for "fair use" for purposes such as criticism, comment, news reporting, teaching, scholarship, and research. Fair use is a use permitted by copyright statute that might otherwise be infringing. Non-profit, educational or personal use tips the balance in favor of fair use.