Android 6+ can´t (re)connect to nRF51822 in DIRECT ADVERTISE mode

RE: Android 6+ can´t (re)connect to nRF51822 in DIRECT ADVERTISE mode

MartinBL — Mon, 16 Jul 2018 15:20:52 GMT

The LE Privacy feature was evolving around the time that Android 5-6 and S130 were released and it seems to be some compatibility issues. Please refer to these articles for some background:

Most likely your Android 6+ devices don't support the use of a random identity address during directed advertising. What you need to do is to generate a resolvable address (RPA) in your application and use that for directed advertising instead.

Before before using directed advertisement where the initiator address is set to an RPA the peripheral should also check if the peer device supports address resolution by reading the Resolvable Private Address Only and Central Address Resolution characteristic.

RE: Android 6+ can´t (re)connect to nRF51822 in DIRECT ADVERTISE mode

MartinBL — Fri, 13 Jul 2018 16:16:51 GMT

Hi,

Sorry for the slow response time. I have asked the Softdevice team for their opinion, but due to summer holidays a lot of key personnel is out of office and the progress is slow. Please give us a couple of more days.

RE: Android 6+ can´t (re)connect to nRF51822 in DIRECT ADVERTISE mode

TiagoST — Fri, 06 Jul 2018 14:14:10 GMT

Yes, we use S130 v2.0.1

I will send to you in private, the files.

RE: Android 6+ can´t (re)connect to nRF51822 in DIRECT ADVERTISE mode

MartinBL — Fri, 06 Jul 2018 11:46:17 GMT

Hi,

Can you confirm that you are using S130 v2.0.1?

Can you upload all your sniffer and HCI snoop log files?