Error 507 does not turn on bluetooth

rror 507 I have a samsung a50 phone. bluetooth HM 10. who can help me with this problem

Try a basic example:

Hello Arshak

Assuming both devices are on and their Bluetooth is on, make sure the phone's Location is on.

Your Samsung uses BLE v5.0 and the HM10 is BLE 4.0, both of which are compatible with the latest App Inventor BLE Extension, which you must use:

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