diff --git a/hm_pyhelper/hardware_definitions.py b/hm_pyhelper/hardware_definitions.py
index 58eea6a..1149858 100644
--- a/hm_pyhelper/hardware_definitions.py
+++ b/hm_pyhelper/hardware_definitions.py
@@ -522,8 +522,8 @@ def is_raspberry_pi() -> bool:
         'CPU_ARCH': 'arm64',
         'BALENA_DEVICE_TYPE': ['nanopc-t4'],
         'SPIBUS': 'spidev0.0',
-        'SWARM_KEY_URI': ['ecc://i2c-5:96?slot=1'],
-        'ONBOARDING_KEY_URI': ['ecc://i2c-5:96?slot=1'],
+        'SWARM_KEY_URI': ['ecc://i2c-5:96?slot=0'],
+        'ONBOARDING_KEY_URI': ['ecc://i2c-5:96?slot=0'],
         'RESET': 17,
         'MAC': 'wlan0',
         'STATUS': None,