Thread+BLE,DFU through ble

Hi, nordic engineer:

          Our project has a function, that is, BLE+Thread coexists. We hope that the mobile phone can upgrade the device through BLE. Can this idea be realized?

          I tried to burn softdecvice+bootloader, then use the mobile phone to give the device DFU. After the upgrade is completed, let the device power off and restart, the device does not jump to the application, but enters DFU mode again.

          The SDK version I currently use is nRF5_SDK_for_Thread_and_Zigbee_v3.1.0_c7c4730. I see some conflicts between the BLE DFU partition and the openthread data store. Can you tell me how to change itBLE DFU memoryopenthread memory