BT or FW issue

[Steven Allen]

Hi,

We believe we have either a BT communication issue for Nordic Semiconductor ASA    NRF52832-QFAB-R 

https://www.digikey.com/products/en?keywords=1490-1055-1-ND

The problem phone can connect to our IOT device, but can't get any command from it or read/write any gatt characteristics values. After 20-30 seconds the connection is lost. You can check this behavior using a problem phone and any bluetooth scanner from google play. Problem phones incude the following: samsung a1 with android 7.0, samsung galaxy s6 edge with android 7.0. So, I think that the common pattern here is that the problem phones are samsung with android 7.0.

Anyone else experiencing this issue or does the manufacturer have any advice on this as a BT issue?

[Einar Thorsrud]

Hi,

You can upload the zip file(s) as shown here:

[Steven Allen]

Hoping this link works:

https://www.getthedefender.com/wp-content/uploads/2019/10/Defender-BLE-logs.zip

[Einar Thorsrud]

Hi,

Thanks, I got the files. Uploading here as well for completeness (Defender BLE logs.zip), and changed the filenames to pcapng). I see some disconnects (reason 0x13), but nothing that obviously is an error. Can you point to the problem in these HCI logs? Also, do you have logs from the nRF side or normal sniffer traces (showing traffic on air)?

I have not found any indications that there should be a problem with Android 7 or Galaxy S6 Edge in general, so therefore it would be good to know what is happening in your peripheral device as well.