DFU failed after GATT connected.

[Kenta Harada]

I met this issue on some Android devices. GATT connection is disconnected before before service discovery finished. The issue is reporeted in following link.

github.com/.../35

I'd like to know the workaround of this issue.

[Hung Bui]

They are very similar as they both use the DFU library to do the task.

Have you tried to repeat the test several times just to make sure nRFConnect always work ?

A sniffer trace would be useful to see why a disconnection happened.