About rewriting firmware with DFU

I am creating a BLE program with ISP4520 which has nRF52832 implemented.

In terms of the program, it is a device that uses BLE communication with a PC, but when I use the same DFU file
to rewrite the firmware of the device, the Bluetooth ID of some devices cannot be confirmed with nRFtoolBox.

What do you think is the cause?

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0 Hung Bui 3 hours ago

Hi Junichi,

Please give more information regarding "the Bluetooth ID of some devices cannot be confirmed with nRFtoolBox.". What did you mean by Bluetooth ID? did you mean the Bluetooth address ? And what did you mean by "confirm" ?
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0 Hung Bui 3 hours ago

Hi Junichi,

Please give more information regarding "the Bluetooth ID of some devices cannot be confirmed with nRFtoolBox.". What did you mean by Bluetooth ID? did you mean the Bluetooth address ? And what did you mean by "confirm" ?
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