nRF UART 2.0 can't scan device on Android 10

[Stanley]

Hi Nordic,

I build the nRF UART 2.0 application source code running on Android OS 5.1 and it works well, but android 10 cannot scan the device.

I migrated to Androidx API but still not working.

Can you help me solve the problem?

Thank you for your help.

-Stanley

[Hung Bui]

Hi Stanley, 
nRFUART v2.0 is very old application. It's deprecated and would not compatible with new Android OS. 

I would suggest you to have a look at the nRFToolbox - UART profile instead. Or take a look at the nRFBlinky app. 

[Stanley]

Hi Bui,

I run the blinky APP on my Android phone Xiaomi T9 Pro. The operating system is version 10. The APP is also unable to scan BLE devices.I had the same problem when I downloaded and installed it from the Play Store.

[Hung Bui]

Hi Stanley, 

I just checked with the team. Seems that on Android the location is changed a little bit and FINE_LOCATION permission is required for BLE but the app only receive COARSE_LOCATION permission which is not enough. The trick is to go to App settings -> Permission -> Location Permission and click Deny then click grant again. This should make it works.

[Stanley]

It works, thank you for help.