Error 507: Unable to connect. Is the device turned on

[Sara_AlShehhi]

Hello,

I've been working on developing an application to establish a connection with a Bluetooth device and subsequently control it using the Bluetooth Client Component. Initially, I attempted to establish a connection with the device through the system settings. Following this, I proceeded to implement the connection within the application itself. However, this approach did not yield the expected results. Instead, I encountered an error message, specifically "Error 507: Unable to connect. Is the device turned on?" which was displayed.

I'm currently seeking assistance to troubleshoot and resolve this connectivity issue. Your guidance and insights would be greatly appreciated. Thank you.

[Patryk_F]

You didn't write the most important thing... what kind of device it is.

[Sara_AlShehhi]

I attempted to establish a connection between two Samsung Note 9 phones.

[Patryk_F]

You cannot connect two devices directly in this way. You must also use the BluetoothServer component.

Here you have an example:

Two mobiles. Bluetooth Server - Client. Study

Hello friends, I wrote two topics about Server-Client mobile connections via Bluetooth: 1.- Two mobiles. Connection Server - Client by Bluetooth. LDR trigger a relay 2.- Two mobiles Server - Client Bluetooth. Now I am going to write a little tutorial on the data types sent. The apps contain an extension to enable or disable Bluetooth: http://kio4.com/appinventor/242_extension_bluetooth.htm Here tutorial in Spanish: http://kio4.com/appinventor/9C3_bluetooth_servidor_cliente.htm

[Taifun]

@Sara_AlShehhi

to establish a connection between two Samsung Note 9 phones

See also

App Inventor Tutorials and Examples: Bluetooth Chat | Pura Vida Apps

Taifun