How to upgrade NRF52832 to DFU through UART.

[RDL_ZYL]

We currently have a project that requires downloading firmware through 4G and transmitting it to NRF52832 through serial port for DFU. Do you have any relevant routine code for me to refer to?

[RDL_ZYL]

Sorry,path is nRF5SDK15209412b96\nRF5_SDK_15.2.0_9412b96\examples\dfu\secure_bootloader

[Jørgen Holmefjord]

The tutorial says:

The following example made for SDK v14.2 but it should work on SDK v15.x with minor modification. 

Did you try SDK 14.2.0?

The project directory should also be placed inside examples\dfu, not inside the secure_bootloader directory.

[RDL_ZYL]

Ok, I'll try SDK 14.2.

[RDL_ZYL]

Thanks.

[RDL_ZYL]

Hi,

Currently, I am able to obtain data from the serial port in BootLoader, but I would like to know what format of data should I transfer if I transfer data through the serial port to NRF52832 for DFU? Is it an upgrade package? Because using BLE DFU requires a ZIP upgrade package.