https://devzone.nordicsemi.com/f/nordic-q-a/82703/android-system-ble-connectHi guys, I tried to connect to nRF52832 using the app and it was successful. But when I directly use the BLE in the Android system(android 11) settings to connect to the device, it will not be able to connect. The Android system will show that an appen-USTelligent Community 13Tue, 14 Dec 2021 08:24:01 GMThttps://devzone.nordicsemi.com/thread/343319?ContentTypeID=1Tue, 14 Dec 2021 08:24:01 GMT137ad170-7792-4731-bb38-c0d22fbe4515:1289b756-32a0-4e96-8c24-e8dd8f2c5f0fv630140<p>Thanks for your suggestion I will try again.</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/343165?ContentTypeID=1Mon, 13 Dec 2021 12:46:43 GMT137ad170-7792-4731-bb38-c0d22fbe4515:831cf5d2-a716-47df-a9de-287b716fbe12Kenneth<p>I expect you will need to use a Bluetooth profile that is supported natively by Android, such as HID devices (keyboard, mouse). I guess you will need to look into which Bluetooth profiles are supported natively, and then possible you may be able to add your customer characteristics/profiles to that device.</p> <p>Kenneth</p><div style="clear:both;"></div>