questions about ble_app_att_mtu_throughput

[aquo]

hi ,we have test the example of ble_app_att_mtu_throughput in nrf52840 ,the other side device is an android phone . nrf52840 would freeze when the phone want to feature request , and nrf52840 hava the similar problem when the phone want to conn parameter update, Could you help me to solve it？ thanks very much！

[FormerMember]

Which phone and android version do you have?

Could you upload the sniffer trace showing the problem?

Could you run the nRF52840 in debug mode and check where it "freezes"? And what in the code that is causing it to "freeze"?