OTA DFU SD 8.0 SDK 8.0 Uploaded application does not run

[Lucas]

I am using SD 8.0 SDK 8.0 and MCP 3.8 I am able to find the DFUtarg service and successfully complete the transfer of my applcation (100% complete). However, upon finishing the application does not boot. This is the command I am using to generate my .zip packet. Perhaps this is a CRC problem?

nrf.exe dfu genpkg j1.zip --application nrf51822_xxac.bin --application-version 0xff --dev-revision 0xffff --dev-type 0xffff --sd-req 0x64

[sruthiraj koodathil]

when am executing this command "nrf.exe dfu genpkg --application nrf51422_xxac.hex --application-version 0xffffffff --softdevice s110_nrf51822_7.1.0_softdevice.hex --dev-type 0xffff --dev-revision 0xffff --sd-req 0x5A myfile.zip" i got an error IOError: [Errno 13] Permission denied: 'myfile.zip'

what is the reason for this?