diff --git a/guide.html b/guide.html
index 4c23e7b..c5a365f 100644
--- a/guide.html
+++ b/guide.html
@@ -44,6 +44,8 @@
                <li>Your cheatfile has the wrong name: Make sure the file is named "GMSE01.gct", "GMSJ01.gct" or "GMSP01.gct". It won't work with names like "GMSE01 (1).gct". Nintendont is very picky!</li>
                <li>Your cheatfile is at the wrong location: Make sure the file is in the "codes" folder of your SD Card. Again, the folder has to be named "codes". If you have a "games" folder, make sure there's no file with the same name in it or its subfolders.</li>
                <li>Your cheatfile is too big: Using too many codes at once can cause Nintendont to disable them since the used space in the game is limited. Make sure you don't have two incompatible codes selected when downloading the cheatfile (for example "Level Select" and "Ingame Timer" are not compatible).</li>
+               <li>If you have a USB drive connected and use disc, make sure you select the device that contains the cheats for your disc.</li>
+               <li>If you use an ISO your cheat file and ISO must be on the same device (both on the SD card or both on the USB drive).</li>
             </ul>
             <h3 id="3.3"><a href="#3.3">3.3 The site doesn't show codes or the download button</a></h3>
             <p>The main site requires Javascript to work properly. Make sure you have Javascript enabled in your browser.</p>