Diagnostics
Reset
Settings
100
Press & hold M+Power for 10 seconds and release
M-BIST
100
Light turns on when plugged into a known good outlet
AC ADAPTER
100
Hold down "CTRL + Esc" key
Plug in AC Adapter
Release the "CTRL + Esc" key
BR2
200
Press & hold D+Power for 10 seconds and release
LCD BIST
200
Press & hold our power button for 20 seconds and release
Hard Reset
200
Click Maintenance under BIOS settings.
Select BIOS Recovery.
Check BIOS Auto Recovery.
Click Apply.
Click Exit (if you don’t click exit, settings won’t be applied).
Disabling BR2 from HDD
300
Ensure to disconnect the AC power cord from the BIST.
To start: Plug in the AC power cord & note the LED lights status.
To restart the PSU BIST: Disconnect the AC power cord for 15 seconds (BIST reset time), and then plug-in the AC power cord.
PSU BIST
300
At the bottom right, select the time
Settings
.
At the bottom left, select About ChromeOS.
Under "Google ChromeOS," find which version of the Chrome operating system your Chromebook uses.
Select Check for updates.
If your Chromebook finds a software update, it will start to download automatically
Chrome Update
300
- SATA Operations – AHCI (RAID ON if system has a RAID CARD or if RAID is configured on the system)
- Boot Mode – Legacy
- Secure Boot – Disabled
- Boot Sequence – Set the Hard Drive (with the Operating System installed) as the First Boot Device
Changing BIOS options
Windows 7
400
Press & hold FN+Power for 10 seconds and release
ePSA
400
On the system from a power off state and is connected to AC power. Press and hold the power button for twenty-five (25) seconds. The Reset occurs after you release the power button.
RTC Reset
400
- SATA Operations – AHCI (RAID ON if system has a RAID CARD or if RAID is configured on the system)
- Boot Mode – UEFI
- Secure Boot – Enabled
- Legacy ROM – Disabled
- Boot Sequence – Set the Hard Drive (with the Operating System installed) as the First Boot Device
Changing BIOS options
Windows 10
500
No Video
Does the keyboard respond?
Yes > Confirms device is on with no display
Toggle Num/Caps lock
500
- Remove the AC adapter and primary battery.
- Unplug the coin-cell (CMOS) battery from the motherboard.
- Release the flea power. Ensure the coin-cell battery and the primary battery are not plugged into the system.
- Plug in the AC adapter and power on the machine.
- Plug the coin-cell (CMOS) battery back into the motherboard.
Latitude Self-Heal
500
- SATA Operations – AHCI (RAID ON if system has a RAID CARD or if RAID is configured on the system)
- Boot Mode – UEFI
- Secure Boot – Enabled (Change it to Disabled if it does not boot)
- Legacy ROM – Enabled
- Boot Sequence – Set the Hard Drive (with the Operating System installed) as the First Boot Device
Changing BIOS options
Windows 8.1