trouble flashing arduino 33 with zephyr examples

Question

Hi all. I am fairly new to zephyr so I apologize for any "noob" errors i seem to present. I have been working with nrf52 dk board and have been able to accomplish many things, pwm, gpio, ble, etc. However I have decided to switch to a non nordic development board to better understand pin assignment and device tree files, before I design my own custom board. As I had an arduino 33 ble laying around I decided to solder connections to the swdio swcclk etc connections and connect it to the output from j link debugger on the nrf 52 dk board. I know my connections, and method should be good as I am able to erase and re write the ardunio bootloader to the board though the nrf programmer. To be clear I am trying to not utilize the arduino bootloader and flash directly through nrf connect or through the programmer with the zephyr.hex file. However when I try to flash the board with with the sample nrf blinky blinky program I get no success. The sample program uses pin 9 which I believe should be the green led on the nano 33 ble. 
 I have attatchedd here what I believe to be the correct modified board.cmake file. 
 # This was before
# SPDX-License-Identifier: Apache-2.0
#board_runner_args(nrfprog "--softreset")
#include(${ZEPHYR_BASE}/boards/common/nrfprog.board.cmake)
#include(${ZEPHYR_BASE}/boards/common/bossac.board.cmake)

# SPDX-License-Identifier: Apache-2.0

#this is after modification

board_runner_args(jlink "--device=nrf5340_xxaa_app" "--speed=4000")

board_runner_args(jlink "--device=nrf5340_xxaa_net" "--speed=4000")

include(${ZEPHYR_BASE}/boards/common/nrfjprog.board.cmake)
 include(${ZEPHYR_BASE}/boards/common/jlink.board.cmake)

I also have attached the modified .yaml file which I included gpio at the bottom. 
 identifier: arduino_nano_33_ble
name: Arduino Nano 33 BLE
type: mcu
arch: arm
toolchain:
 - zephyr
 - gnuarmemb
 - xtools
supported:
 - adc
 - ble
 - i2c
 - ieee802154
 - pwm
 - serial
 - spi
 - uart
 - usb_cdc
 - usb_device
 - watchdog
 - gpio 
 
 the arduino sample dts file includs the common dtsi file and thus I assumed it would make no difference. however for test i tried to build and flash the dts file with the contents of the common dtsi file which is very similar to the nrf 52 f25840 example dts file. 
 
 thanks