Always get "Transmitter error: Unable to parse auth challenge: timeout" with newer transmitters

[goltra3]

Hi guys!, I'm always getting "Transmitter error: Unable to parse auth challenge: timeout" with these G6 newer transmitters that showed @ps2 in his v3.1 version.

I've:

• Removed every transmitter from bluetooth paired devices
• Deleted Dexcom apps
• Restarted iPhone

With an older one (July 2019), it does ask me for pairing, but next it throws me an exception and app crashes. It does reset the transmitter.

Any Ideas?

[pi4ohhi7]

Having the same issue with my new batch of transmitters (serial numbers starting with 8G). Interestingly, passive mode is also not working. Logs from active mode (ids redacted):

2020-04-16 10:22:27.323822-0500 dtracker[739:142631] [BluetoothManager] centralManager(_:didDisconnectPeripheral:error:): <CBPeripheral: 0xXXXXXXXXX, identifier = XXXXXXXX-XXXX-XXXX-XXXX-XXXXXXXXXXXX, name = DexcomXX, state = disconnected>
2020-04-16 10:22:29.335385-0500 dtracker[739:142631] [BluetoothManager] Re-connecting to known peripheral XXXXXXXX-XXXX-XXXX-XXXX-XXXXXXXXXXXX
2020-04-16 10:22:29.712137-0500 dtracker[739:142627] [BluetoothManager] centralManager(_:didConnect:): <CBPeripheral: 0xXXXXXXXXX, identifier = XXXXXXXX-XXXX-XXXX-XXXX-XXXXXXXXXXXX, name = DexcomXX, state = connected>
2020-04-16 10:22:29.712530-0500 dtracker[739:142627] [PeripheralManager] Configured peripheral has no services. Reconfiguring…
Transmitter connected
2020-04-16 10:22:29.863499-0500 dtracker[739:142627] [PeripheralManager] Peripheral configuration completed
2020-04-16 10:22:29.864202-0500 dtracker[739:142627] [PeripheralManager] Delegate configuration completed
2020-04-16 10:22:29.864503-0500 dtracker[739:142627] [Transmitter] Authenticating with transmitter
Unable to parse auth challenge: timeout

[pi4ohhi7]

Shortly after that last comment passive mode started working. But active mode still fails to authenticate.

[goltra3]

Hi @pi4ohhi7!, what do you mean with "active" and "passive" mode?

[pi4ohhi7]

Passive mode eavesdrops on the official Dexcom app as it communicates with the transmitter; active mode directly communicates with the transmitter. It looks like passive mode does still work (though I'm having some trouble getting it to work consistently).

[goltra3]

Thanks @pi4ohhi7!, and is it possible to reset transmitters with passive mode?, I haven't heard about that possibility... how does it work?. Thanks again!

[pi4ohhi7]

It's not relevant to resetting transmitters as far as I know.

[agoldh20]

I am also getting this error

[DonaldBough]

Also having this issue with 8J transmitter in the US on iPhone with iOS 13 something.

[trauts2]

Same here, with 8H transmitters.

[tomnis]

Getting the same with an 8M transmitter.