diff --git a/gadget.md b/gadget.md
index ed4702d..76046ac 100644
--- a/gadget.md
+++ b/gadget.md
@@ -4,7 +4,7 @@ Prepare Raspberry Pi OS connection over a microUSB serial cable
 Important:  You will want to disable the serial console on RX/TX if you are trying to use that serial port for communicating with other devices.
 
 Based upon Adafruit guide: https://learn.adafruit.com/turning-your-raspberry-pi-zero-into-a-usb-gadget/serial-gadget:
-The author discovered errors in the guide and was able to correct them thanks to this blog https://www.isticktoit.net/?p=1383
+The author discovered the guide was out of date, consulted the [2025 Raspberry Pi whitepaper on OTG](https://pip-assets.raspberrypi.com/categories/685-app-notes-guides-whitepapers/documents/RP-009276-WP/Using-OTG-mode-on-Raspberry-Pi-SBCs), found additional errors, and was finally able to correct them thanks to this blog https://www.isticktoit.net/?p=1383
 
 Make sure you have your USB cable plugged into the left port **USB** and not the right port marked **PWR**.
 1. Open a connection to the device via ssh or Raspberry Pi Connect