Unable to connect to Samsung S21

[_jonas_]

Hello,

I have a problem with the bluetooth connection to a Samsung s21. It connects for like two seconds and then disconnects immediately. Then tries to establish a new connection.

The strange thing is: It works fine on all other phones (iOS and Android) even the s21 Ultra works fine.

I'm in contact with the Samsung support team, they looked into the bluetooth log of the phone and pointed out that the MCU is not responding to the read request of the phone.

Here Samsung's answer:

The development team has got back to us.

Remote device didn't respond to the mobile's read request after HCILE_Connection_Update_Complete.

Android changed the connection interval to 7.5ms during the service discovery process. This is a normal in Android.

Please check why your devices do not respond after HCI_LE_ Connection_Update_Complete.

 

I have not found any information to fix the read request handling. I'm using NSC 2.6.1.

Can someone help me? 

Thanks in advance

Jonas

[ovrebekk]

Hi Jonas

What kind of application are you running on the peripheral side? Is it based on one of the standard SDK samples?

Would you be able to capture a sniffer trace when the issue occurs, so we can look into it in more detail?

If you don't have a professional Bluetooth sniffer available it is possible to use the nRF Sniffer. 

Best regards
Torbjørn

[GJChristman]

Hi folks,

I am having the same issue with my Samsung S21 Android 14 phone not connecting to one of my projects.  My old S9, Galaxy TAB10, and iPhone all connect it it with no problem.

The project device is an NRF52832 SOC running code based on the samples and the V2.3 toolchain.  I've tried another of the same devices compiled with the V2.6.1 toolchain with the exact same results.

I can supply Pcap file generated with the NRF Sniffer that might help shed some light on this issue if you could tell me where to upload it.

Thanks for your help!

-Glenn

[ovrebekk]

Hi Glenn

If you are still having problems with this I would recommend opening a new ticket. This is actually my last day in Nordic, and I won't be able to follow up unfortunately. 

Best regards
Torbjørn