To turn on Bluetooth, the general steps are: On an iPhone:

• Open the Settings app.
• Tap on Bluetooth.
• Toggle the switch to turn Bluetooth on (the switch turns green).
• Alternatively, swipe up from the bottom of the screen to open Control Center and tap the Bluetooth icon to turn it on (icon turns blue).
• You can also ask Siri by saying, "Turn on Bluetooth."

On an Android phone:

• Open the Settings app.
• Go to Connected Devices or Connections.
• Tap on Bluetooth and toggle the switch on.
• Or swipe down from the top of the screen, hold the Bluetooth icon, and toggle it on.

On Windows 11:

• Click the Start button and open Settings.
• Go to Bluetooth & devices.
• Toggle Bluetooth on.
• You can also use the Action Center on the taskbar, clicking the Bluetooth icon to turn it on.

Let me know if instructions are needed for a specific device or operating system. This summary covers common methods to turn on Bluetooth across popular devices.