dual bank signed bootloader update issue in sdk11.0.0

[Raj]

Hi all, I'm working on signed bootloader on nRF52832 using sdk11.0.0. I need to update signed bootloader through dfu but I'm facing an issue that is,

I programed softdevice s132 v2.0.0, signed bootloader and security module using nrfgo studio it advertising fine, now I re-complied the signed bootloader without any changes and created .zip by using that signed bootloader hex and updated through dfu in board uisng nrftoolbox it given alert as "update completed" and the board advertsing fine.

If I made any changes in signed bootloader ex.just changed device name from "Dfutarg to Dfutest" and complied and created .zip and updated through dfu in board using nrftoolbox it given alert as "update completed" same as previous but now the borad is not advertising. If I programed the signed bootloader hex(Dfutest) which is used to create .zip using nrfgo studio it advertsing fine.

If I update signed bootloader in the same manner in nRF51 through dfu it working fine advertising with new device name i.e Dfutest

can any one help me to solve the problem thanks in advance

[bjorn-spockeli]

Hi Raj, we do not have a bootloader with signing in SDK v11. We had one in SDK v10, but that one was experimental. Have you ported the bootloader from SDK v10 to SDK v11? If you need a bootloader that uses signed firmware images, then I recommend that you move to SDK v12.2.0 where we have a production ready bootloader with signing, i.e. the Secure Bootloader.