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DFU of softdevice or softdevice+bootloader makes iOS app crash

sdonly.zipsoftdevice.zipCustom board with a nRF51422, SD 310 rev 2.0.0, nRF Toolbox rev 2.4, iOS 8.4

When trying to use the DFU app to update my softdevice and/or the combined package with softdevice+bootloader the application crashes/quits without errormessage, warnings or anything.

I can update the application or the bootloader successfully, but as soon as the SD is involved I get nowhere in a hurry.

Any good ideas as to what goes wrong?

The zip file is generated from s310_nrf51422_2.0.0_softdevice.hex and my own bootloader.hex, by peeling of lines as described in the howto, running hex2bin, combining them with copy /b and thus obtaining the crc using crc.exe. Finally my shot at a .dat is zipped together with the original .hex files.

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  • Hi Peterh,

    I am afraid that there may be not enough space for softdevice+bootloader update. The softdevice, MBR and the bootloader is already occupied 112+4+16 = 132kB. You have 124kB left in the swap area. And this is not enough to store both new softdevice and bootloader at the same time (112+16= 128kB).

    It's one of the issues we are facing and we will try to find a solution to fix it.

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