DFU Scanner Failed on Android O with SR3 v1.1

RE: DFU Scanner Failed on Android O with SR3 v1.1

Joakim Jakobsen — Tue, 18 Sep 2018 14:38:06 GMT

Hi.

Take a look at Bjørn's answer in this post.

https://devzone.nordicsemi.com/f/nordic-q-a/15100/what-is-connection-bonding/57676

Best regards.

RE: DFU Scanner Failed on Android O with SR3 v1.1

Ralph — Mon, 17 Sep 2018 07:48:14 GMT

Hi Roshan,

I tested DFU function on Android 8 smart phone with nRF connect :

1.First, we try to use some combo keys to enter DFU mode but keep failing, in this stage we always bond the RCU with phone.

2.I found a config called NRF_DFU_BLE_REQUIRES_BONDS in sdk_config.h, so I clear it, just give it a try, and then it can enter DFU mode by combo keys without bonding.

3.DFU can be done without bonding but connecting.

Questions:

1. What is the main difference between "connecting" and "bonding" ?

2. Why can't it enter DFU with NRF_DFU_BLE_REQUIRES_BONDS sets? No logs for this issue,it just reboot likes nothing happened.

Thanks.

RE: DFU Scanner Failed on Android O with SR3 v1.1

Ralph — Tue, 11 Sep 2018 07:35:23 GMT

Sure.

RE: DFU Scanner Failed on Android O with SR3 v1.1

Roshan Rajaratnam — Tue, 11 Sep 2018 07:34:14 GMT

Great that it helped. Could you please open a new issue for this? Opening a new issue would also help other users who might have faced the same issue! Thanks

RE: DFU Scanner Failed on Android O with SR3 v1.1

Ralph — Tue, 11 Sep 2018 07:11:49 GMT

Hi Roshan,

Thanks your help. I can find the DFU device now, but it gets another issue when DFU is running.

E/DfuImpl: Executing object failed (error 10)

D/BluetoothGatt: onSearchComplete() = Device=C7:76:13:BC:5D:F2 Status=0
W/Notification: Use of stream types is deprecated for operations other than volume control
W/Notification: See the documentation of setSound() for what to use instead with android.media.AudioAttributes to qualify your playback use case
D/BluetoothGatt: onConnectionUpdated() - Device=C7:76:13:BC:5D:F2 interval=13 latency=0 timeout=400 status=0
D/BluetoothGatt: onConnectionUpdated() - Device=C7:76:13:BC:5D:F2 interval=13 latency=0 timeout=400 status=0
D/BluetoothGatt: setCharacteristicNotification() - uuid: 8ec90001-f315-4f60-9fb8-838830daea50 enable: true
E/DfuImpl: Executing object failed (error 10)
W/Notification: Use of stream types is deprecated for operations other than volume control
W/Notification: See the documentation of setSound() for what to use instead with android.media.AudioAttributes to qualify your playback use case
D/BluetoothGatt: cancelOpen() - device: C7:76:13:BC:5D:F2
D/BluetoothGatt: onClientConnectionState() - status=0 clientIf=7 device=C7:76:13:BC:5D:F2
D/BluetoothGatt: refresh() - device: C7:76:13:BC:5D:F2
D/BluetoothGatt: close()
D/BluetoothGatt: unregisterApp() - mClientIf=7
E/UploadingFragment: Upload failed: UNKNOWN (8202)

RE: DFU Scanner Failed on Android O with SR3 v1.1

Roshan Rajaratnam — Tue, 11 Sep 2018 04:29:54 GMT

Hi Ralph, this is permission set in the manifest file. If you go in to your Android settings >> apps >> your application and check for permissions listed there. Also go to settings and security & location to see if location services is enabled. Please check if these two are enabled.

RE: DFU Scanner Failed on Android O with SR3 v1.1

Ralph — Tue, 11 Sep 2018 01:53:27 GMT

Hi Roshan,

I sure that I have enable location permission on the device.

<uses-permission android:name="android.permission.BLUETOOTH"/>
<uses-permission android:name="android.permission.BLUETOOTH_ADMIN"/>
<uses-permission android:name="android.permission.ACCESS_COARSE_LOCATION"/>

After setting setUseHardwareBatchingIfSupported(false), it still doesn't work.

RE: DFU Scanner Failed on Android O with SR3 v1.1

Roshan Rajaratnam — Thu, 06 Sep 2018 06:22:44 GMT

Hi Ralph,

Could you ensure if you have enabled location permission and location services on the Device running Android O? This could be one of the reasons you may not see the scan results. Also you may try setting setUseHardwareBatchingIfSupported(false). Hope this helps!