diff --git a/docs/v1.md b/docs/v1.md
index 19fce1ef..0c96e43a 100644
--- a/docs/v1.md
+++ b/docs/v1.md
@@ -106,7 +106,9 @@
         ??? example "Electrical schematic diagram for advanced users"
             <img src="../pico_hid/basic_scheme.png" />
 
-3. **[Flash firmware to the Pico HID.](pico_hid.md)**
+3. !!! warning "Double check that the circuit is assembled correctly to avoid any damage of the hardware."
+
+4. **[Flash firmware to the Pico HID.](pico_hid.md)**
 
 
 -----
diff --git a/docs/v2.md b/docs/v2.md
index 473ef1f5..2fc0ce09 100644
--- a/docs/v2.md
+++ b/docs/v2.md
@@ -141,6 +141,8 @@
     ??? example "Electrical schematic diagram for advanced users"
         <img src="../v2/v2_atx_scheme.png" />
 
+4. !!! warning "Double check that the circuit is assembled correctly to avoid any damage of the hardware."
+
 
 -----
 ## Wiring with the target host