Phone didn't received packets NRF52832 sent

[TUNG_BK]

Hello everyone !!

While in test, I use Phone Mi Max 2 communicate with NRF52, sometime NRF52 send to Phone but Phone didn't received. I used sniffer and see packets to be sent. This cause make the app on PHONE fail. I don't understand why. Help me pls !!! Thanks

[bjorn-spockeli]

Hi Tung_BK, 

can you please upload the sniffer trace of the on-air packets so that we can have a look. 

Best regards

Bjørn

[TUNG_BK]

1072.test1.pcapng

This file, line 9413 CONNECT_REQ, line 10280 to line 10287 communicate with Phone.

Thanks bjorn-spockeli.

[bjorn-spockeli]

Hi Tunk_bk, 

the trace  you sent shows that the nRF52 and the MI Max 2 is performing the service discovery process and then then there is a write request to a CCCD from the master, which the slave responds to and then there is a Handle value Notification from the slave. After that there is only empty packets, which indicated that the link is still alive. 

When does the application on the Mi Max 2 hang? Is it after the Handle Value notification, packet 9500?