DFU GATT error on nrf51822

[qoboty]

I use bootloader example of SDK8.1.0, when I begin OTA, I got GATT error.

I use nRF Toolbox Version1.16.2

here is application upload: dfu_test_app_hrm.bin

here is the init file: manifest.json

how to fix it ? Thank you !

here is the bootloader

[qoboty]

I have uploaded the bootloader that I got gatt error when I DFU. Am I configure wrong ? or how to fix it ? Thank you !

[qoboty]

I have solved this problem by updating SDK to SDK 9.0.0