Disconnected from iPhone error code 0x2a without LMP collision

RE: Disconnected from iPhone error code 0x2a without LMP collision

Louis — Wed, 01 Jul 2015 10:54:52 GMT

This problem disappeared after implementing the solution for the iPhone LMP collision issue here

RE: Disconnected from iPhone error code 0x2a without LMP collision

Hung Bui — Tue, 26 May 2015 14:22:12 GMT

Hi Louis, Thanks for the sniffer trace.

Could you let me know which softdevice, SDK and firmware you used on the nRF51 ? From your trace, I found it's pretty strange to see that the peripheral was advertising when in connection. Were you using timeslot ?

A "Remote user terminated connection" happened at packet #1217. I'm not sure why you got the disconnect reason of 0x2a which mean BLE_HCI_DIFFERENT_TRANSACTION_COLLISION. I don't see any reason why the softdevice returned that code. Have you made sure you changed the optimization level to 0 ? How was the connection terminated ? By clicking disconnect button on the Phone? If you can take the sniffer trace using our sniffer, it's would be much appreciated. I'm more familar with out sniffer.

RE: Disconnected from iPhone error code 0x2a without LMP collision

Louis — Tue, 26 May 2015 13:05:23 GMT

Updated question.

RE: Disconnected from iPhone error code 0x2a without LMP collision

Hung Bui — Fri, 22 May 2015 10:31:15 GMT

@Louis: Could you give me more information on the 0x2a error code you received ? On which side did you get the error on the phone or on the nRF51 ? And in which event ? I can see you received "Remote User Terminated Connection" disconnect reason. It would be easier to understand the issue if we have the sniffer trace when the disconnection occurs.