startDeviceScan error - Cannot start scanning operation - error code: 600

[bear1030]

I have the app built with this library.

On Galaxy S10 startDeviceScan method returns the following error.

{"message":"Cannot start scanning operation","errorCode":600,"attErrorCode":null,"iosErrorCode":null,"androidErrorCode":null,"reason":"Bluetooth cannot start (code 0)","name":"BleError"}

• I am running the latest version
• I checked the documentation and found no answer
• I checked to make sure that this issue has not already been filed and found #738 and #390 , but couldn't find an answer.

[DreamGamer]

Hi, i had the same issue with my Samsung S10 and got it fixed. The Samsung S10 has Android 12 and this android update has new permissions. So i updated my AndroidManifest.xml file with these Permissions:

<uses-permission android:name="android.permission.BLUETOOTH"/>
<uses-permission android:name="android.permission.BLUETOOTH_ADMIN"/>
<uses-permission android:name="android.permission.BLUETOOTH_ADVERTISE"/>
<uses-permission android:name="android.permission.BLUETOOTH_SCAN"/>
<uses-permission android:name="android.permission.BLUETOOTH_CONNECT"/>
<uses-feature android:name="android.hardware.bluetooth" android:required="true"/>
<uses-feature android:name="android.hardware.bluetooth_le" android:required="true"/>

And i also use this package to manage the Persmissions: https://github.com/zoontek/react-native-permissions

[groopmisha]

Hi, I had the same issue on Android 12, on Android 11 everything worked fine. Thanks, @DreamGamer, I tried react-native-permissions with the list above and everything ok

[bear1030]

@DreamGamer

I added all those permissions to AndroidManifest.xml file.

Which permissions do you check with https://github.com/zoontek/react-native-permissions?

Thank you!

[bear1030]

@DreamGamer I resolved it. I had to request the 'BLUETOOTH_SCAN' and 'BLUETOOTH_CONNECT'. You saved my day. Thank you again.

[ShaoGongBra]

@bear1030 How did you ask for permission? Can you share the code? I added the permission, thank you, it's still the same

[bear1030]

@ShaoGongBra

import {PERMISSIONS, RESULTS, requestMultiple} from 'react-native-permissions'; ... await requestMultiple([ PERMISSIONS.ANDROID.BLUETOOTH_SCAN, PERMISSIONS.ANDROID.BLUETOOTH_CONNECT, ])

[ShaoGongBra]

@bear1030 Don't need this permission: android.permission.ACCESS_FINE_LOCATION

[bear1030]

@ShaoGongBra That's what you need to grant for this package as a default. Here is my full code.

import {PERMISSIONS, RESULTS, requestMultiple} from 'react-native-permissions'; ... await PermissionsAndroid.request(PermissionsAndroid.PERMISSIONS.ACCESS_FINE_LOCATION); await requestMultiple([ PERMISSIONS.ANDROID.BLUETOOTH_SCAN, PERMISSIONS.ANDROID.BLUETOOTH_CONNECT, ]);

[Mottion]

@ShaoGongBra Isso é o que você precisa conceder para este pacote como padrão. Aqui está o meu código completo.

import {PERMISSIONS, RESULTS, requestMultiple} from 'react-native-permissions'; ... await PermissionsAndroid.request(PermissionsAndroid.PERMISSIONS.ACCESS_FINE_LOCATION); await requestMultiple([ PERMISSIONS.ANDROID.BLUETOOTH_SCAN, PERMISSIONS.ANDROID.BLUETOOTH_CONNECT, ]);

Good morning friend, I'm speaking here from Brazil and I wanted to make it clear that the whole of Brazil is indebted to you.