nrf52832 dfu APP+SD+BL

[Sunshine8166]

Hello! I used nrf52832(SDK12.3,softdevice:v3.0) in my project, now i want to upgrade softdevice to v6.1.1 by DFU. I used the same private.key to generate zip package（App+SD+BL）, with this package i can enter bootloader, but cannot continue to upgrade, Can you provide demo or related materials?

Thanks for helping in advance

[Einar Thorsrud]

Hi,

Generally there is no problem upgrading to a newer SoftDevice, bootloader and application. The only thing you need to think you need to think of is that --sq-req when you generate the DUF zip package must include both the SoftDevice ID of the old and new SoftDevice.

[Sunshine8166]

Thank you for your reply, I have successfully upgraded to SDK15.3 with softdevice V6.1.1, this problem is really caused by --sq-req.