Error(0x85):GATT ERROR

RE: Error(0x85):GATT ERROR

Fanis — Sun, 19 Nov 2017 13:50:13 GMT

It seems that playing with connection intervals and connection interval update times can solve the problem. I have had an issue in which i could connect with honor 9 to the main firmware and couldn't to dfu bootloader. Increasing conn parameter update delays seems to solve this problem (by default there was a 100ms after first connection and honor reports disconnect right after connect, or sometimes 0x85 error)

RE: Error(0x85):GATT ERROR

michaeld — Tue, 05 Sep 2017 14:40:49 GMT

Did you manage to solve the issue Ankush?

RE: Error(0x85):GATT ERROR

Ankush — Fri, 24 Mar 2017 06:47:15 GMT

In my code I have changed the values for connection interval from 7.5 to 11.25. I am having Android 6 smart phone. Still I am facing the same 133 issue.

RE: Error(0x85):GATT ERROR

gennaro82 — Tue, 21 Mar 2017 19:36:27 GMT

Asap I will post the log from nrf connect but it's quitesimple

RE: Error(0x85):GATT ERROR

Aleksander Nowakowski — Tue, 21 Mar 2017 12:12:04 GMT

Could you post the logs from nRF Connect to your question? It would help us understand what's going on. If the issue does not appear on Android 7+ then it was an Android bug. Initiating a connection and then cancelling it wasn't in fact cancelling, so the phone stayed connected. How about reopening nRF Connect wiht GATT Server configured to anything else than Disabled. Is the connection showing up there? How about when you click Disconnect button then?

@Ankush, the minimum connection interval for Android 5+ is 11.25 ms. Before it was 7.5 ms.

RE: Error(0x85):GATT ERROR

gennaro82 — Mon, 20 Mar 2017 12:00:31 GMT

The error doesn't pop up with android 7 and ios 10

RE: Error(0x85):GATT ERROR

Ankush — Sat, 18 Mar 2017 04:59:10 GMT

Even I am also facing the same issue. Sometimes App does not connect to device and if I try to connect it multiple times 133 error appears in app error log. For me connection parameters are 7.5, 7.5, 0, 32000 respectively. Does some has any idea regarding this?