diff --git a/recipes-connectivity/ublox-gsm-config/files/ublox-gsm-config.py b/recipes-connectivity/ublox-gsm-config/files/ublox-gsm-config.py
index 899cb54..d0c049b 100755
--- a/recipes-connectivity/ublox-gsm-config/files/ublox-gsm-config.py
+++ b/recipes-connectivity/ublox-gsm-config/files/ublox-gsm-config.py
@@ -31,6 +31,11 @@ def execute_and_check(ser, cmd):
             sys.exit(-1)
         tries = 0
 
+def init_sim_sw():
+    line = gpiod.find_line('SIM_SW')
+    line.request(consumer='ublox-config', type=gpiod.LINE_REQ_DIR_OUT)
+    line.set_value(1)
+
 def switch_sim():
     line = gpiod.find_line('SIM_SW')
     line.request(consumer='ublox-config', type=gpiod.LINE_REQ_DIR_OUT)
@@ -153,7 +158,7 @@ def help():
 def main():
     line = gpiod.find_line('GSM_SUP_EN')
     line.request(consumer='ublox-config', type=gpiod.LINE_REQ_DIR_OUT)
-
+    init_sim_sw()
     if len(sys.argv) == 2:
         if sys.argv[1] == 'stop':
             return poweroff(line)