diff --git a/esptool/targets/esp32c2.py b/esptool/targets/esp32c2.py
index 3ed9df8dc..100e55e39 100644
--- a/esptool/targets/esp32c2.py
+++ b/esptool/targets/esp32c2.py
@@ -21,8 +21,8 @@ class ESP32C2ROM(ESP32C3ROM):
     DROM_MAP_START = 0x3C000000
     DROM_MAP_END = 0x3C400000
 
-    # Magic value for ESP32C2 ECO0 and ECO1 respectively
-    CHIP_DETECT_MAGIC_VALUE = [0x6F51306F, 0x7C41A06F]
+    # Magic value for ESP32C2 ECO0 , ECO1 and ECO4 respectively
+    CHIP_DETECT_MAGIC_VALUE = [0x6F51306F, 0x7C41A06F, 0x0C21E06F]
 
     EFUSE_BASE = 0x60008800
     EFUSE_BLOCK2_ADDR = EFUSE_BASE + 0x040