Installing or Replacing a Hard-Disk DriveNokia 105s Gateway Installation Guide 71Before You StartTo install or replace the hard-disk drive in your gateway, you need thefollowing: Physical access to the gateway A Nokia-approved hard-disk drive Access to the gateway through Network Voyager A Phillips-head screwdriver A torque screwdriver capable of a 69.4ozf*in (5kgf*cm) settingTo install or replace a hard-disk drive1. Use Network Voyager to shut the gateway down.For information about how to access Network Voyager, see “Using NokiaNetwork Voyager” on page 43.2. Loosen the retaining screws that hold the chassis tray assembly.00525genChassis tray assembly retaining screws