How to trigger nRF52832 device into DFU mode while application is running on the device?

[hitesh poshia]

I am trying to trigger my target device (nRF52832) into DFU mode using nRF52832 DK. 

According to my approach, I need to send DFU bootloader given in "installed folder:\examples\dfu\secure_bootloader\pca10040_s132_ble\ses".

I am trying to flash the same by generating DFU packet but getting an error like "Upload failed: DFU characteristics not found."

can someone tell me that what should be the right approach for triggering the target device into DFU mode while application is running on the target device(nRF52832)?

[Simonr]

Hi

Yes, you can enter DFU mode while the application is running. Either by pressing a button you've configured to trigger DFU mode or by using a BLE service to trigger it. Please check out our "Getting started with Nordic's Secure DFU bootloader" guide to get started and learn more about the DFU process itself.

Best regards,

Simon