Disconnected when connected with LESC

RE: Disconnected when connected with LESC

Mario Dimitrov — Wed, 15 Jul 2020 13:23:22 GMT

Any news about the problem and how 2.2 will fix the problem

RE: Disconnected when connected with LESC

Mario — Thu, 12 Mar 2020 08:33:30 GMT

Yes I try to see this disconnect on android phones and do not see this behavior on android phone.

I can only simulate this only on iOS

RE: Disconnected when connected with LESC

Vidar Berg — Thu, 12 Mar 2020 08:24:26 GMT

Have you tested the same with Android phones and with other third-party BLE apps on ios such as Lightblue?

RE: Disconnected when connected with LESC

Mario — Thu, 12 Mar 2020 08:15:17 GMT

Just To add one more thing the same problems appears, when I use bond only, no passkey entry or numeric comparison just bond the iOS and the Bluetooth and if I wait 3 second or more before confirm with 'Yes' the same disconnect appear.

RE: Disconnected when connected with LESC

Mario — Wed, 11 Mar 2020 08:48:40 GMT

Thank you Vidar Berg. Is it possible to know what is the reason for this disconnect or how v2.2 will fix the issue.

RE: Disconnected when connected with LESC

Vidar Berg — Tue, 10 Mar 2020 10:37:30 GMT

Hello, thank you for the feedback. The pairing issue will be fixed in the upcoming v2.2 release which is coming out soon.

RE: Disconnected when connected with LESC

Mario — Tue, 10 Mar 2020 07:33:04 GMT

Hello guys I have the same situation.

I use nrf Connect (ios) to pair with nrf52832. If I am fast and confirm the passkey 1 or 2 seconds after it's shown, than I do not have any problems (no disconnection) , but if I way longer 5 to 10 seconds after it's shown than I see the disconnect the reason s BLE_HCI_REMOTE_USER_TERMINATED_CONNECTION

RE: Disconnected when connected with LESC

Vidar Berg — Wed, 04 Sep 2019 08:58:02 GMT

I don't see the disconnect when using the nRF toolbox app so it appears that it is the nRF connect app that causes the disconnect. I have reported this internally.

RE: Disconnected when connected with LESC

m-o — Wed, 04 Sep 2019 08:44:13 GMT

Thank you very much.

RE: Disconnected when connected with LESC

Vidar Berg — Wed, 04 Sep 2019 07:29:09 GMT

Thanks for confirming that it's not related to an aborted pairing procedure. I'm now seeing a similar issue with nRF connect v2.0.2, the app seems to disconnect after the bonding is complete, but only for the initial connection, subsequent connections do not get disconnected. I'll investigate it further.

RE: Disconnected when connected with LESC

m-o — Wed, 04 Sep 2019 00:08:26 GMT

Tank you for your answer.

I understand that there is a problem if bonding information remains in either.
Although it was disconnected, bonding is completed.
If you connect again after being disconnected, you can connect and send / receive data without displaying the "Pairing Request" screen.

Both ipad and module delete bonding information.
The module was written from the state where FLASH was erased.
The module application software is based on the following SDK.

"nRF Connect for desk top" connects without problems.

【environment】
[module]
nRF51822: SDK12.3
nRF52840: SDK15.2

[ipad pro]
iOS: 12.2
nRF Connect:2.0.1

RE: Disconnected when connected with LESC

Vidar Berg — Tue, 03 Sep 2019 13:52:13 GMT

Hello,

I haven't had this problem with my iPhone. But the PM manager will reject new pairing requests from an already bonded peer device unless you've configured it to allow repairing. Could this maybe explain the problem you see? I.e., the bond was deleted on your iPhone at some point, but not on the peripheral, so the iPhone now tries to repair every time you re-connect but keeps getting rejected by the FW because the bond already exists? If you are unsure about this, please erase the chip and re-program it to ensure all bonding info is erased, then try to re-connect and see if you get the same problem.