Did Something Change With Bluetooth Serial In Android 10?

I have a Google Pixel 3a XL on Android 10 that is unable to make a good Bluetooth serial connection to a Bluetooth SPP module using Bluetooth 2.0. However, I can connect to a modul

Solution 1:

Something that changed with Android 10 is that you need to have your location enabled besides the permission in order to connect to some BLE devices. I'm not sure if this will help you, but can give you some light regarding the issue you're having.

"Some telephony, Bluetooth, Wi-Fi APIs require FINE location permission If your app targets Android 10 or higher, it must have the ACCESS_FINE_LOCATION permission in order to use several methods within the Wi-Fi, Wi-Fi Aware, or Bluetooth APIs. The following sections list the affected classes and methods."

https://developer.android.com/about/versions/10/privacy/changes