Status of the LED Indicator

The LED indicator on the upper right of HHKB Studio indicates the status of the keyboard.

Various statuses are displayed by combining the four LED indicator lights.

Immediately after the power is turned on, or when checking the profile in use and the connected device
During use
When establishing/switching a connection (Bluetooth/USB)
When switching between profiles
When adjusting input device operations

Immediately after the power is turned on, or when checking the profile in use and the connected device

Order of Light Up	Status	Description
1	All four lights light up once in white	Indicates that the keyboard is turned on.
2	The light corresponding to the number of the profile that has been applied lights up once in white	Indicates the profile that has been applied. The light corresponding to the number of the profile (Profile1 to Profile4) lights up once in white. (The figure shows an example of the LED indicator when Profile1 has been applied)
3	Bluetooth connection: The light corresponding to the device to be connected lights up once in blue USB connection: All four lights light up once in blue	Indicates the connection status of the keyboard. Bluetooth connection The light corresponding to the number key (1 to 4) to which the pairing information for the connected device is assigned lights up once in blue. (The figure shows an example of the LED indicator when the keyboard is connected via Bluetooth to the device assigned to the number [2] key) USB connection All four lights light up once in blue.

Order of Light Up

Status

Description

All four lights light up once in white

Indicates that the keyboard is turned on.

The light corresponding to the number of the profile that has been applied lights up once in white

Indicates the profile that has been applied.

The light corresponding to the number of the profile (Profile1 to Profile4) lights up once in white.

(The figure shows an example of the LED indicator when Profile1 has been applied)

Bluetooth connection:

The light corresponding to the device to be connected lights up once in blue

USB connection:

All four lights light up once in blue

Indicates the connection status of the keyboard.

Bluetooth connection

The light corresponding to the number key (1 to 4) to which the pairing information for the connected device is assigned lights up once in blue.

(The figure shows an example of the LED indicator when the keyboard is connected via Bluetooth to the device assigned to the number [2] key)
USB connection

All four lights light up once in blue.

During use

Status	Description
The lights turn off	Indicates any of the following statuses: Connected mode (Ready) The keyboard is connected to a device. You can use the keyboard for the connected device. Power saving mode This mode indicates the following statuses: When no keys are pressed for 30 minutes in connected mode (while batteries are used for power supply) When no keys are pressed for 10 minutes in pairing mode When the keyboard is disconnected from the device in use To resume from power saving mode and reconnect to the device, press the [Return] key. When SW6 of the DIP switches is set to Up (ON) or when power is supplied via a USB Type-C cable, press any key.
The leftmost light blinks in orange	When the light blinks in orange once every 30 seconds, the remaining battery power is low. When the light blinks in orange twice every 15 seconds, replace the batteries.

Status

Description

The lights turn off

Indicates any of the following statuses:

Connected mode (Ready)

The keyboard is connected to a device. You can use the keyboard for the connected device.
Power saving mode

This mode indicates the following statuses:
- When no keys are pressed for 30 minutes in connected mode (while batteries are used for power supply)
- When no keys are pressed for 10 minutes in pairing mode
- When the keyboard is disconnected from the device in use
To resume from power saving mode and reconnect to the device, press the [Return] key. When SW6 of the DIP switches is set to Up (ON) or when power is supplied via a USB Type-C cable, press any key.

The leftmost light blinks in orange

When the light blinks in orange once every 30 seconds, the remaining battery power is low.

When the light blinks in orange twice every 15 seconds, replace the batteries.

When establishing/switching a connection (Bluetooth/USB)

Status	Description
The lights light up one after the other from side to side	The keyboard is in pairing standby mode. Press [Fn] + [Control] + any of the [1] to [4] number keys to enter the pairing mode.
The light corresponding to the device to be connected blinks quickly in blue (five times per second)	The keyboard is in pairing mode. The keyboard is ready to be connected to the device via Bluetooth. The light corresponding to the number key (1 to 4) to which the pairing information for the connected device is assigned blinks quickly in blue. (The figure shows an example of the LED indicator when pairing information is assigned to the number [2] key)
The light corresponding to the device to be connected lights up in blue, then turns off	The keyboard is waiting for the device to be connected again via Bluetooth. The light corresponding to the number key (1 to 4) to which the pairing information for the connected device is assigned lights up in blue. (The figure shows an example of the LED indicator when the keyboard is waiting for the device assigned to the number [2] key to be connected via Bluetooth) The light will turn off after the connection is established.
All four lights light up in blue, then turn off	The keyboard is waiting for the device to be connected via USB. The lights will turn off after the connection is established.

When switching between profiles

Status	Description
The light corresponding to the number of the profile that has been applied blinks in white (once per second)	The keyboard is in profile switching mode. The light corresponding to the number of the profile (Profile1 to Profile4) that has been applied blinks in white. (The figure shows an example of the LED indicator when Profile1 has been applied) Press any of the [1] to [4] number keys to switch the profile to be used.
The light corresponding to the number of the profile that has been switched to lights up in white, then turns off	The profile has been switched. The light corresponding to the number of the profile (Profile1 to Profile4) that has been switched to lights up in white. (The figure shows an example of the LED indicator when the profile is switched to Profile2) The light will turn off after the profile is switched.

Status

Description

The light corresponding to the number of the profile that has been applied blinks in white (once per second)

The keyboard is in profile switching mode.

The light corresponding to the number of the profile (Profile1 to Profile4) that has been applied blinks in white.

(The figure shows an example of the LED indicator when Profile1 has been applied)

Press any of the [1] to [4] number keys to switch the profile to be used.

The light corresponding to the number of the profile that has been switched to lights up in white, then turns off

The profile has been switched.

The light corresponding to the number of the profile (Profile1 to Profile4) that has been switched to lights up in white.

(The figure shows an example of the LED indicator when the profile is switched to Profile2)

The light will turn off after the profile is switched.

When adjusting input device operations

Status	Description
The lights corresponding to the set value light up once in blue and white	The speed of the pointing stick has been changed by the key operation. As shown on the left, the number and color of the LED indicator lights vary depending on the set value. When the speed reaches the maximum or minimum speed, the LED indicator blinks twice in white.
All four lights light up once in white	The pointing stick is temporarily enabled by the key operation.
The lights at both ends light up once in white	The pointing stick is temporarily disabled by the key operation.
One to four lights corresponding to the set value light up once in white from the left	The sensitivity of the gesture pads has been changed by the key operation. The number of LED indicator lights that light up varies depending on the set value. Low: the leftmost light lights up once in white Medium: the two leftmost lights light up once in white High: the three leftmost lights light up once in white (The figure shows an example of when High is set) Highest: all four lights light up once in white
The light corresponding to each gesture pad lights up once in white or turns off depending on the set value.	The gesture pads are temporarily enabled/disabled by the key operation. The LED indicator status varies depending on the gesture pad settings. Each LED indicator light from the left shows the setting status of the gesture pad on the left side, front left side, front right side, and right side, respectively. Enabled: lights up once in white Disabled: turns off (The figure shows an example of a case where only the gesture pad on the left side is enabled and the others are disabled)