diff --git a/_pages/en_US/installing-boot9strap-(kartdlphax).txt b/_pages/en_US/installing-boot9strap-(kartdlphax).txt
index 25a063043c..dd8f8b98fa 100644
--- a/_pages/en_US/installing-boot9strap-(kartdlphax).txt
+++ b/_pages/en_US/installing-boot9strap-(kartdlphax).txt
@@ -4,6 +4,9 @@ title: "Installing boot9strap (kartdlphax)"
 
 {% include toc title="Table of Contents" %}
 
+This exploit does not currently work on USA region, Old3DS-family (3DS, 3DS XL, 2DS) consoles on 11.17.0 (e.g. 11.17.0-50U).
+{: .notice--warning}
+
 {% capture technical_info %}
 <summary><em>Technical Details (optional)</em></summary>