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.

[Kenta Harada]

Thank you for your comment.

I don't use nRF Connect, use our original Android application with Android DFU Library. DFU Library waits some seconds before GATT connection but it's not enough on some Android devices. So I added a 1.5 sec delay before calling DfuServiceInitiator.start() (This is because we don't want to customize DFU Library). But disconnection happens on some Android devices such as KYOCERA, SHARP and FUJITSU.