diff --git a/How-to-Unlock-MCU-Flash.md b/How-to-Unlock-MCU-Flash.md
index 28950b1..c106430 100644
--- a/How-to-Unlock-MCU-Flash.md
+++ b/How-to-Unlock-MCU-Flash.md
@@ -4,6 +4,7 @@ This wiki page explains how to unlock the flash of an STM32 or a GD32 to allow r
 It's not possible to dump the original firmware and flash it later.<br>
 This procedure will erase the stock MCU firmware irreversibly! Perform these steps at your own risk!
 
+Make sure you hold the power button while unlocking the chip, as the STM will release the power latch and switch itself off.<br>
 
 # Method 1: Using ST-Link Utility