diff --git a/nebula/manager.py b/nebula/manager.py
index 58a765de..448ee6df 100644
--- a/nebula/manager.py
+++ b/nebula/manager.py
@@ -404,7 +404,8 @@ def board_reboot_uart_net_pdu(
         self, system_top_bit_path, bootbinpath, uimagepath, devtreepath, sdcard=False
     ):
         """Manager when UART, PDU, and Network are available"""
-        self._check_files_exist(
+        if not sdcard:
+            self._check_files_exist(
             system_top_bit_path, bootbinpath, uimagepath, devtreepath
         )
         try: