by Jawahar Singh
Turns on speaker during phone call when the phone is held away from your ear, unless a headset or BT Hands free device is connected.
Uses the proximity sensor for detection. Cover the phone or place face down during a call to disable the speaker.
Modify block 11 to fine tune BT device profiles.
Ver 2: Fixed issue with flow.
Ver 3: Added notification to disable for call or for an hour
Ver 4: Notification display bug fix
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