Effective immediately, reinstalling security screws on iPhone defective units (KBB) is not required for Whole Unit Replacement (WUR) repairs. If security screws are missing or removed at the service location for inspection/troubleshooting and you determine WUR is required, it is optional to reinstall security screws before sending the defective iPhone (KBB) to Apple.
Not reinstalling security screws will allow for streamlined repairs and a smoother KBB review process at Apple warehouses.
If iPhone KBB is returned without security screws, please ensure the display is properly reassembled and seated onto its enclosure to avoid any damages during shipping.