Get your HoloLens 2 ready to use

The procedures below will help you set up a HoloLens 2 for the first time.

Charge your HoloLens

Connect the power supply to the charging port by using the USB-C cable (included). Plug the power supply into a power outlet. The power supply and USB-C-to-C cable that come with the device are the best way to charge your HoloLens 2. The charger supplies 18W of power (9V at 2A).

Charging rate and speed may vary depending on the environment in which the device is running.

  • When the device is charging, the battery indicator lights up to indicate the current level of charge. The last light will fade in and out to indicate active charging.
  • When your HoloLens is on, the battery indicator displays the battery level in increments.
  • When only one of the five lights is on, the battery level is below 20 percent.
  • If the battery level is critically low and you try to turn on the device, one light will blink briefly, then go out.

Adjust fit

Place the HoloLens 2 on your head. If you wear eyeglasses, leave them on. The brow pad should sit comfortably on your forehead and the back band should sit in the middle-back of your head.

If necessary, extend the headband by turning the adjustment wheel, and then loosen the overhead strap.

HoloLens 2 fit and adjustments

Attach and detach the overhead strap

The overhead strap isn't required, but it can make wearing HoloLens 2 more comfortable during long periods of use.

To detach the front of the overhead strap, unhook the strap and slide it through the retractable loop on the brow pad. To reattach it, pull out the loop and slide the strap back through.

To detach the back of the overhead strap, press the button below each connection tab and pull gently. To reattach it, push the connection tabs back into the slots until they click.

attach or remove the HoloLens 2 head strap

Turn on the HoloLens 2

To turn on your HoloLens 2, press the Power button. The LED lights below the Power button display the battery level.

Note

To power on HoloLens 2 for the very first time, after unboxing, press and hold the power button for at least 4 seconds to turn it on. Next time you power on HoloLens 2, it’ll start after a short power button press.

Power button actions for different power transitions

To do this Perform this action The HoloLens 2 will do this
To turn on Single button press. All five lights turn on, then change to indicate the battery level. After four seconds, a sound plays.
To sleep Single button press. All five lights turn on, then fade off one at a time. After the lights turn off, a sound plays and the screen displays "Goodbye."
To wake from sleep Single button press. All five lights turn on, then change to indicate the battery level. A sound immediately plays.
To turn off Press and for hold 5s. All five lights turn on, then fade off one at a time. After the lights turn off, a sound plays and the screen displays "Goodbye."
To force the Hololens to restart if it is unresponsive Press and hold for 10s. All five lights turn on, then fade off one at a time. After the lights turn off.

HoloLens behavior reference

Not sure what the indicator lights on your HoloLens mean? Want to know how HoloLens should behave while charging? Here's some help!

Charging behavior

State of the Device Action HoloLens 2 will do this
OFF Plug in USB Cable Device transitions to ON with indicator lights showing battery level and device starts charging.
ON Remove USB Cable Device stops charging
ON Plug in USB Cable Device starts charging
SLEEP Plug in USB Cable Device starts charging
SLEEP Remove USB Cable Device stops charging
ON with USB cable plugged in Turn off Device Device transitions to ON with indicator lights showing battery level and device will start charging

Lights that indicate the battery level

Number of lights Battery level
Four solid lights, one light fading in and out Between 100% and 81% (fully charged)
Three solid lights, one light fading in and out Between 80% and 61%
Two solid lights, one light fading in and out Between 60% and 41%
One solid light, one light fading in and out Between 40% and 21%
One light fading in and out Between 20% and 5% or lower (critical battery)

Sleep Behavior

State of the Device Action HoloLens 2 will do this
ON Single Power button press Device transitions to SLEEP and turns off all indicator lights
ON No movement for 3 minutes Device transition to SLEEP and turns off all indicator lights
SLEEP Single Power button Press Device transitions to ON and turns on indicator lights

Lights to indicate problems

When you do this The lights do this It means this
You press the Power button. One light flashes five times, then turns off. The HoloLens battery is critically low. Charge your HoloLens.
You press the Power button. All five lights flash five times, then turn off. HoloLens cannot start correctly and is in an error state. Reinstall the operating system to recover your device.
You press the Power button. The 1st, 3rd, and 5th lights flash together continually. HoloLens may have a hardware failure. To be sure, reinstall the OS, and try again. After reinstalling the OS, if the light-flash pattern persists, contact support.

Safety and comfort

Use HoloLens in safe surroundings

Use your HoloLens in a safe space, free of obstructions and tripping hazards. Don’t use it when you need a clear field of view or can't commit your full attention, such as while you’re operating a vehicle or doing other potentially hazardous activities.

Stay comfortable

Keep your first few sessions with HoloLens brief and be sure to take breaks. If you experience discomfort, stop and rest until you feel better. This might include temporary feelings of nausea, motion sickness, dizziness, disorientation, headache, fatigue, eye strain, or dry eyes.