# Lenovo ThinkCentre fix for freeze on reboot

These Lenovo ThinkCentre/ThinkStation models are stuck on the Lenovo screen
when rebooting: M720s/t, M920s/t, M720q, M920q, M920x, P330, P330 Tiny

The solution is follow the process of the BIOS update failure recovery
with a current BIOS.

 0) Create a BIOS Update disk with BIOS M1VKT45A or later.
 1) Remove all media from the drives and turn off all connected devices.
 2) Insert the BIOS update disc into the optical drive, and then turn off the
    computer.
 3) Disconnect all power cords from electrical outlets. Then, remove any parts
    that impede access to the Clear CMOS /Recovery jumper.
 4) Move the jumper from the standard position to the maintenance position.
 5) Reconnect the power cords for the computer and the monitor to electrical
    outlets.
 6) Turn on the computer and the monitor. When the computer beeps, the recovery
    process begins.
 7) After the recovery process is completed, the computer will be turned off
    automatically. Note: Depending on the computer model, the recovery process
    will take two to three minutes.
 8) Disconnect all power cords from electrical outlets.
 9) Move the jumper back to the standard position.
10) Reinstall all the parts that have been removed. Then, reconnect the power
    cords for the computer and the monitor to electrical outlets.
11) Turn on the computer and the monitor. Press F1 during POST and ensure that
    Setup is configured correctly. This is especially important for Optane or
    RAID configurations.