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My Android app uses BLE APIs, and one of these APIs, BluetoothGattCallback.onConnectionStateChange(), receives an undocumented error code 19. I'm using Nexus 9.

Did anybody ever see this error code before? Like I mentioned above, this is undocumented in the Android API reference, and I don't know what to do about it.

P.S.

I searched issue tickets at Android issue tracker also, and found that developers encounter undocumented, BLE-related error codes often. Hmm, this is grim.

Shigerello
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  • The undocumented error code can mainly be found inside a C header file inside Android source code. Didn't have the source in hand so cannot tell you the exact file though. – reTs Dec 16 '14 at 09:59
  • I have added a ticket in issue tracker more than a year ago requesting documentation for the undocumented error codes, but still no response until now. – reTs Dec 16 '14 at 10:00
  • @reTs can you post the link to that issue? I wanna star it. – petey Dec 18 '14 at 22:06

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