Bitcraze Forums

Can't fly my Crazyflie 2.0. Red is flashing (rapidly). Android + BLE. Help!

Sorry, but "Can't fly my Crazyflie" is not a very meaningful description of a problem.

Please provide more details what exactly does not work for you.
E.g.
-Did you manage to get a connection to the Crazyflie (green light blinking rapidly) after clicking on the connect button (the one with the two arrows)?
-Did you see any error messages?

The app is started. Switch on Crazyflie and the selftest goes well. The blue ones are lighting. The red is flashing. What does it mean? What is the message?
Click the connect button. After 10 seconds I get the message Conection lost.

For an explanation of the LEDs see: https://wiki.bitcraze.io/projects:crazy ... uide:index

What kind of Android device do you use?
Which Android version are you running?

Do you have a Crazyradio to test the connection?

I can't see any explanation of this flashing in the guide.
I have a Samsung Galaxy Tab S.
Android version 5.0.2
I have not a Crazyradio.

Sorry, this link should explain the blinking pattern better (it's for the CF1 but should still apply for the CF2):
https://wiki.bitcraze.io/projects:crazy ... uide:index

To isolate the problem please try a different Android device from a friend (Android 4.4+ with BLE support).

Yes, it flies with Android 4.4.2
When will it be compatible with Anroid 5.0.n?

I'm sorry that the Android client is not compatible with your device. It is compatible with Android 5.0.0 and 5.0.1, at least on a Nexus 5 and I doubt that 5.0.2 broke the compatibility.
Without the device in front of me it's hard to isolate the problem. I will try to implement a debug log in one of the next versions (due in the beginning of June).