DFU - gatt connection error(0x81, 0x85)

[kibo]

Hi, I am adding DFU service to my app.

When I try DFU, 2 GATT errors have occurred.

I am using nrf52, sdk11.0

Thanks.

[kibo]

Yes, I added 3 files(dfu_app_handler, ble_dfu, bootloader_util), 3 functions(advertising_stop, app_context_load, reset_prepare) and variables. I want to know when 0x81, 0x85 GATT errors occurred.