How do I boot to bios on Surface Pro 3?

To load the UEFI firmware settings menu:

1. Shut down your Surface.

2. Press and hold the volume-up button on your Surface and at the same time, press and release the power button.

3. When you see the Surface logo, release the volume-up button. The UEFI menu will display within a few seconds.



Surface won’t turn on or wake from sleep

https://support.microsoft.com/en-ca/help/4023537/surface-surface-wont-turn-on-or-wake-from-sleep


Solution 2: Try waking your Surface with hotkeys

You might be able to wake your Surface using a special keyboard shortcut.

* If you have a keyboard connected, simultaneously press the Windows logo key +Ctrl+Shift+B.

* If you are in tablet mode, simultaneously press both the volume-up and volume-down buttons three times in quick succession (within two seconds).


Solution 3: Force a shut down and restart

See Force a shut down and restart your Surface to find out how.

Basically, hold down power for 30 secs. Then hold Vol UP and power together for 15 secs, let go. Then power on. Will boot into UEFI


To Boot into UEFI:

Hold down Vol UP. While holding, push and let go of power, keep holding Vol. When see Win logo, let go of Vol.