Connection Issue

[btrmateusz]

A few seconds after connecting, device disconnects. Services are not discovered. I'm using the nRF Connect Android app. My bleno app doesn't do much - just trying to get something simple to work.

Bleno is running on macOS Sierra 10.12.5 - MacBook Pro 2017, with Xcode 9.0 beta 3 with a Swift 4.0 Snapshot 2017-07-06 toolchain. Node v8.1.2.

nRF Connect is running on Android 7.1.1 - Nexus 6.

Tried to reboot the system, kill the blued service, did not help.

Logs below. Hopefully nothing private in those. Anything out of the ordinary?
Android adb logcat.txt
Android nRF Log.txt
Android Bluetooth HCI snoop log.zip
MacOS bleno debug.txt
MacOS console.txt
MacOS index.js.zip

[sandeepmistry]

@btrmateusz could you please also provide your bleno code? Have you tried one of the built-in examples?

[btrmateusz]

Thanks for getting back to me @sandeepmistry. It looks like it's my phone - I got a hold of two other BLE devices - Samsung S7 and iPad Air 2. Both seem to be able to connect, read and write to characteristics without any disconnects.

My bleno code is found in the MacOS index.js (Google Drive) file in my initial post.

I used nRF Connect to connect to the bleno peripheral on both Android phones. On the iPad I used LightBlue app, as suggested here.

Eliminating any JS issues, can you think of any reasons why my Nexus 6 wouldn't work? I am using a stock Google OTA Android image.

[btrmateusz]

I found this thread out there. In my MacOS bleno debug.txt file there's this: "kCBMsgArgConnectionInterval": 7,. Is this 7 milliseconds? Is there any way to change this value with XPC?

#235

[btrmateusz]

Got rid of files on Google drive - Github allows *.zip so I zipped up the JS and Android snoop log.

[btrmateusz]

Just to make sure I have that covered - I flashed my phone to the latest Android OTA image. Same Android version (7.1.1) but a different build with different (latest) security patches. Same issue.

[btrmateusz]

I'm going to close this - I've been having other BLE issues with this phone (ex., I can't pair using a passkey) - which don't seem to happen on other Android and iOS devices. This phone is EOL and unless other devices have similar problems, it doesn't matter.