DFU EXECUTE code 4 failed . Result code 5

[HugMantas]

I'm trying to send a DFU file but i get en error:

2019-08-16T16:11:40.300Z DEBUG Destroying DFU transport.
2019-08-16T16:11:40.300Z ERROR DFU failed with error: When writing 'EXECUTE' command to Control Point Characteristic of DFU Target: Operation code 4 (EXECUTE) failed on DFU Target. Result code 5 (INVALID_OBJECT).
2019-08-16T16:11:40.325Z DEBUG 763 -> [00 76 00 00 13 ] type: VENDOR_SPECIFIC reliable:yes seq#:4 ack#:7 payload_length:5 data_integrity:1 header_checksum:a6 err_code:0x0
2019-08-16T16:11:40.325Z DEBUG 761/ 0 <- [N/A] type: ACK reliable: no seq#:0 ack#:5 payload_length:0 data_integrity:0 err_code:0x0
2019-08-16T16:11:40.325Z DEBUG 762/ 0 <- [01 76 00 00 00 00 ] type: VENDOR_SPECIFIC reliable:yes seq#:7 ack#:5 payload_length:6 data_integrity:1 header_checksum:a3 err_code:0x0
2019-08-16T16:11:40.325Z DEBUG 764 -> [N/A] type: ACK reliable: no seq#:0 ack#:0 payload_length:0 data_integrity:0 err_code:0x0
2019-08-16T16:11:40.342Z DEBUG GAP_EVT_DISCONNECTED time:2019-08-16T16:11:40.341Z connHandle:0 reason:22 reasonName:localHostTerminatedConnection
2019-08-16T16:11:40.343Z DEBUG 763/ 0 <- [02 11 00 00 00 16 ] type: VENDOR_SPECIFIC reliable:yes seq#:0 ack#:5 payload_length:6 data_integrity:1 header_checksum:aa err_code:0x0
2019-08-16T16:11:40.344Z DEBUG 765 -> [N/A] type: ACK reliable: no seq#:0 ack#:1 payload_length:0 data_integrity:0 err_code:0x0

It works fine with examples ect. this is legacy code i have trying to figure out what is happening. any ideas where or what should i look for?

[tesc]

Hi,

What version of the nRF5 SDK is the bootloader based off of?

What tool are you using for generating the DFU update, and what exact steps do you perform to do so?

What tool are you using for performing the DFU, and what exact steps do you perform to do so?

Regards,
Terje

[HugMantas]

Hi, Im using nRF5_SDK_15.3.0_59ac345 (on NRF52840) with s140_nrf52_6.1.1_softdevice.hex

Im using the liker file  from nRF5_SDK_15.3.0_59ac345\examples\ble_peripheral\ble_app_buttonless_dfu\pca10056\s140\armgcc

i run the command 

nrfutil pkg generate --application _build/light_sense_LIGHT_SENSE_V2_release.hex --application-version 1 --hw-version 14 --sd-req 0xb6 --key-file ../../hug_c_libraries/nordic/components/dfu/hug_dfu_public_key.pem \

and it compiles and creates the dfu zip.

im using nrf connect tool to upload the dfu

i have also attached bootloader linker filesecure_bootloader_gcc_nrf52_release.ld

let me know if i can provide any more information