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Facebook may crash on your device due to network issues. After an iOS upgrade, relevant symptoms may have occurred as a result of improper or inaccurate settings established by iOS overrides. Resetting the network settings to their default values and choices should be simple enough to remove such information.
Here are the steps to take if you want to give it a try:
- From the Home screen, go to Settings.
- Select General.
- Select Reset from the drop-down menu.
- Select Reset Network Settings from the drop-down menu.
- When asked, enter your device's passcode.
- Then press to check that the network settings have been reset.
When you're finished, your iPhone will reboot automatically. Because it will delete your stored Wi-Fi networks and other network settings, you'll have to set them up again and make sure Facebook is operating properly.
