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Is it possible upgrading from nrf52 sdk 14.0 to sdk 16.0?

Hi,we had finished application development on nrf52832 long ago, based on nrf52 sdk 14.0(with softdevice 5.0). But now we get feedback which is a bug has been fixed on sdk 16.0(with softdevice 7.0). We want to solve this problem by DFU since a lot of productions have appeared on the market. We did the test, but not work(see attatchment). Is this possible technically?

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  • hi guys:

    Maybe it is related to bootloader.

    If delete the BL (--bootloader Bootloader. hex -- Bootloader-version 2) in Command line, NRFConnect will indicate that the upgrade was successful.(Upgrade SD alone or upgrade SD and APP together without BL NRFConnect will indicate  transfer up to 100% and successful

    But after the poweroff and reboot ;it run the old app.(actually dfu is failed)!

    It should be related to bootloadersetting.

    what can i do next?

    thanks all!

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