diff --git a/autopts/ptsprojects/boards/nrf53.py b/autopts/ptsprojects/boards/nrf53.py
index aa62a50c3a..3f018b6a5b 100644
--- a/autopts/ptsprojects/boards/nrf53.py
+++ b/autopts/ptsprojects/boards/nrf53.py
@@ -14,38 +14,5 @@
 #
 
 from .nrf5x import *
-from autopts.bot.common import check_call
 
 board_type = 'nrf5340dk/nrf5340/cpuapp'
-
-
-def build_and_flash(zephyr_wd, board, debugger_snr, conf_file=None, *args):
-    """Build and flash Zephyr binary
-    :param zephyr_wd: Zephyr source path
-    :param board: IUT
-    :param debugger_snr serial number
-    :param conf_file: configuration file to be used
-    """
-    logging.debug("%s: %s %s %s", build_and_flash.__name__, zephyr_wd,
-                  board, conf_file)
-
-    tester_dir = os.path.join(zephyr_wd, 'tests', 'bluetooth', 'tester')
-    controller_dir = os.path.join(zephyr_wd, 'samples', 'bluetooth', 'hci_ipc')
-
-    check_call('rm -rf build/'.split(), cwd=tester_dir)
-    check_call('rm -rf build/'.split(), cwd=controller_dir)
-
-    bttester_overlay = 'nrf5340_hci_ipc.conf'
-
-    if conf_file and conf_file != 'default' and conf_file != 'prj.conf':
-        bttester_overlay += f';{conf_file}'
-
-    cmd = ['west', 'build', '-b', board, '--', f'-DOVERLAY_CONFIG=\'{bttester_overlay}\'']
-    check_call(cmd, cwd=tester_dir)
-    check_call(['west', 'flash', '--skip-rebuild', '--recover', '-i', debugger_snr], cwd=tester_dir)
-
-    cmd = ['west', 'build', '-b', 'nrf5340dk/nrf5340/cpunet', '--',
-           f'-DOVERLAY_CONFIG=\'nrf5340_cpunet_iso-bt_ll_sw_split.conf;'
-           f'../../../tests/bluetooth/tester/nrf5340_hci_ipc_cpunet.conf\'']
-    check_call(cmd, cwd=controller_dir)
-    check_call(['west', 'flash', '--skip-rebuild', '-i', debugger_snr], cwd=controller_dir)