- If your iPhone overheats, has a serious fault, or the screen itself cracks, black displays may appear. To ensure that your iPhone isn't merely out of battery, you should plug it into a charger. A dark screen usually means there's an issue with the computer's hardware.
- This indicates that there isn't a quick fix. However, before jumping to conclusions, it's always a good idea to force a reboot, as a poor software update might result in a variety of issues, including the black screen. If it doesn't work, you might need an iPhone 7 screen repair, which is something Puls excels in.
Read More: How to fix an iPhone 7 that keeps getting Wi-Fi error after updating to iOS 11
