diff --git a/scripts/spi_flash/spi_flash.py b/scripts/spi_flash/spi_flash.py
index 0c893ed2..99cd4bae 100644
--- a/scripts/spi_flash/spi_flash.py
+++ b/scripts/spi_flash/spi_flash.py
@@ -99,7 +99,10 @@ SD_SPI_SPEED = 4000000
 # MCU Command Constants
 RESET_CMD = "reset"
 GET_CFG_CMD = "get_config"
-GET_CFG_RESPONSE = "config is_config=%c crc=%u is_shutdown=%c move_count=%hu"
+GET_CFG_RESPONSES = ( # Supported responses (sorted by newer revisions first).
+    "config is_config=%c crc=%u is_shutdown=%c move_count=%hu", # d4aee4f
+    "config is_config=%c crc=%u move_count=%hu is_shutdown=%c"  # Original
+)
 ALLOC_OIDS_CMD = "allocate_oids count=%d"
 SPI_CFG_CMD = "config_spi oid=%d pin=%s"
 SPI_BUS_CMD = "spi_set_bus oid=%d spi_bus=%s mode=%d rate=%d"
@@ -856,8 +859,17 @@ class MCUConnection:
 
     def check_need_restart(self):
         output("Checking Current MCU Configuration...")
-        get_cfg_cmd = mcu.CommandQueryWrapper(
-            self._serial, GET_CFG_CMD, GET_CFG_RESPONSE)
+        # Iterate through backwards compatible response strings
+        for response in GET_CFG_RESPONSES:
+            try:
+                get_cfg_cmd = mcu.CommandQueryWrapper(
+                    self._serial, GET_CFG_CMD, response)
+                break
+            except Exception as err:
+                # Raise an exception if we hit the end of the list.
+                if response == GET_CFG_RESPONSES[-1]:
+                    raise err
+                output("Trying fallback...")
         params = get_cfg_cmd.send()
         output_line("Done")
         if params['is_config'] or params['is_shutdown']: