USB BLE Dongle with serial bootloader

[Miri]

Hello

i need to make BLE Dongle (reproduce without having documents, just a page how to update Firmware)

i need to be able to programm a .hex file i have via nRFgo Studio - nRF5x Bootloader - DFU using serial bootloader as a Application, 115200 Baudrate using flowcontrol.

i tried with the NRF51 Dongle but it didnt work. as a control unit i would be able to comunicate with the dongle via a serial Terminal.

is it possbile with the NRF52840 Dongle, or do i need to make Hardware modification to do it? what kind?

please help

thanks a lot

Miri

[Miri]

Hi Edvin

Yes reproduce 3rd party dongle, but i do know what it is programmed with, i have a .hex file i suppose to programm with nrfgo Studio with DFU serielle bootloader.

what i do not know what kind of hardware to use as it is in a case and im not allowed to open, in case it breaks.

thank you so much for your time

Miri

[Edvin]

Then I don't what you need to do, if you don't have access to the programming pins. If there is no bootloader in it, it is not possible to update the program. I am sorry. You need to ask the producers of the dongle how to update the application on the dongle. I am sorry.

[Miri]

thank you anyway for your answer