diff --git a/How-to-Unlock-MCU-Flash.md b/How-to-Unlock-MCU-Flash.md
index 0ea07b7..014b32c 100644
--- a/How-to-Unlock-MCU-Flash.md
+++ b/How-to-Unlock-MCU-Flash.md
@@ -1,6 +1,9 @@
 This wiki page explains how to unlock the flash of an STM32 or a GD32 to allow re-flashing with a custom firmware.
 
-### WARNING: This procedure will erase the stock MCU firmware irreversibly! Perform these steps at your own risk!
+### ⚠️ WARNING ⚠️ 
+It's not possible to dump the original firmare and flash it later.<br>
+This procedure will erase the stock MCU firmware irreversibly! Perform these steps at your own risk!
+
 
 # Method 1: Using ST-Link Utility