There could be several reasons why your Facebook screen turned black. Here are some potential causes and steps you can take to troubleshoot the issue:
1. Software glitch: It's possible that a temporary software glitch caused your Facebook screen to turn black. To resolve this, try force quitting the Facebook app and relaunching it. On iOS devices, swipe up from the bottom of the screen and swipe left or right to find the Facebook app. Swipe it up or off the screen to quit the app. On Android devices, go to Settings > Apps > Facebook > Force Stop.
2. Outdated app version: Make sure you have the latest version of the Facebook app installed on your device. App updates often contain bug fixes and improvements that can resolve such issues. Visit the respective app store (Apple App Store or Google Play Store), search for Facebook, and tap on "Update" if an update is available.
3. Network connectivity issues: Unstable or slow internet connections can sometimes cause display issues in apps. Check your internet connection by accessing other websites or apps to ensure it is working fine. If you're having connectivity problems, try switching from Wi-Fi to mobile data (or vice versa) to see if it improves the situation.
4. Device-related problems: It's possible that the problem lies with your device rather than the Facebook app itself. Restart your device to clear any temporary glitches or background processes that might be affecting the display. If the issue persists, consider updating your device's operating system to the latest version.
5. Hardware issues: In rare cases, a hardware problem could be causing the black screen on your device. If none of the above steps resolve the issue, you may want to visit an authorized service center or contact customer support for further assistance.
Remember to try these troubleshooting steps systematically and test Facebook after each step to check if the issue has been resolved.