diff --git a/docs/v3.md b/docs/v3.md
index 79f60921..2ff1b5cc 100644
--- a/docs/v3.md
+++ b/docs/v3.md
@@ -93,6 +93,11 @@ Once you have that, do the following:
     1. Display
 
 
+-----
+## Flashing the OS
+
+Most of the time, this step is not necessary. However, if there is a possibility that your device had a previous owner (e.g. "Used - Like New" on Amazon), we recommend reflashing the OS to ensure a clean start. Please follow [this guide](flashing_os.md).
+
 -----
 ## Wiring
 
diff --git a/docs/v4.md b/docs/v4.md
index ee73b7a0..7b53622c 100644
--- a/docs/v4.md
+++ b/docs/v4.md
@@ -78,6 +78,11 @@ PiKVM uses your remote keyboard and mouse to simulate a local keyboard, mouse, a
 
     1. Display
 
+-----
+## Flashing the OS
+
+Most of the time, this step is not necessary. However, if there is a possibility that your device had a previous owner (e.g. "Used - Like New" on Amazon), we recommend reflashing the OS to ensure a clean start. Please follow [this guide](flashing_os.md).
+
 -----
 ## Wiring