diff --git a/doc/GUIDE.md b/doc/GUIDE.md
index 36d9d299..19483c17 100644
--- a/doc/GUIDE.md
+++ b/doc/GUIDE.md
@@ -24,7 +24,7 @@ unzip plato-launcher-fmon-VERSION.zip -d SD_ROOT
 
 ## Configure
 
-The default library path is `/mnt/onboard`. If your library lives somewhere else, you'll need to create a file named `Settings.toml` in the same directory as the program's binary with the following content:
+The default library path is `/mnt/onboard` on devices without an external SD card, and `/mnt/sd` otherwise. If your library lives somewhere else, you'll need to create a file named `Settings.toml` in the same directory as the program's binary with the following content:
 ```toml
 library-path = "LIBRARY_PATH"
 ```
diff --git a/src/device.rs b/src/device.rs
index 43837b4d..9e92f96e 100644
--- a/src/device.rs
+++ b/src/device.rs
@@ -1,5 +1,6 @@
 use std::env;
 use std::fmt;
+use std::path::PathBuf;
 use std::collections::HashMap;
 use lazy_static::lazy_static;
 use crate::unit::scale_by_dpi;
@@ -69,6 +70,18 @@ pub enum FrontlightKind {
 }
 
 impl Device {
+    pub fn library_path(&self) -> PathBuf {
+        match self.model {
+            Model::AuraH2O |
+            Model::Aura |
+            Model::AuraHD |
+            Model::Mini |
+            Model::Glo |
+            Model::Touch => PathBuf::from("/mnt/sd"),
+            _ => PathBuf::from("/mnt/onboard"),
+        }
+    }
+
     pub fn frontlight_kind(&self) -> FrontlightKind {
         match self.model {
             Model::AuraONE |
diff --git a/src/settings/mod.rs b/src/settings/mod.rs
index bc71d200..e4c8c9d0 100644
--- a/src/settings/mod.rs
+++ b/src/settings/mod.rs
@@ -251,7 +251,7 @@ impl Default for BatterySettings {
 impl Default for Settings {
     fn default() -> Self {
         Settings {
-            library_path: PathBuf::from("/mnt/onboard"),
+            library_path: CURRENT_DEVICE.library_path(),
             frontlight: true,
             wifi: false,
             rotation_lock: None,