diff --git a/briar-android/src/main/java/org/briarproject/briar/android/Localizer.java b/briar-android/src/main/java/org/briarproject/briar/android/Localizer.java
index 74864b03f..f4eef4fc7 100644
--- a/briar-android/src/main/java/org/briarproject/briar/android/Localizer.java
+++ b/briar-android/src/main/java/org/briarproject/briar/android/Localizer.java
@@ -4,6 +4,7 @@ import android.content.Context;
 import android.content.SharedPreferences;
 import android.content.res.Configuration;
 import android.content.res.Resources;
+import android.support.v4.text.TextUtilsCompat;
 
 import org.briarproject.bramble.api.nullsafety.NotNullByDefault;
 
@@ -12,6 +13,7 @@ import java.util.Locale;
 import javax.annotation.Nullable;
 
 import static android.os.Build.VERSION.SDK_INT;
+import static android.support.v4.view.ViewCompat.LAYOUT_DIRECTION_LTR;
 import static org.briarproject.briar.android.settings.SettingsFragment.LANGUAGE;
 
 @NotNullByDefault
@@ -91,6 +93,7 @@ public class Localizer {
 
 	private void setLocaleAndSystemConfiguration() {
 		Locale.setDefault(locale);
+		if (SDK_INT >= 23) return;
 		Configuration systemConfiguration =
 				Resources.getSystem().getConfiguration();
 		updateConfiguration(systemConfiguration, locale);
@@ -98,4 +101,27 @@ public class Localizer {
 		Resources.getSystem().updateConfiguration(systemConfiguration,
 				Resources.getSystem().getDisplayMetrics());
 	}
+
+	// Indicates whether the language represented by locale
+	// should be offered to the user on this device.
+	// * Android doesn't pick up Asturian on API < 21
+	// * Android can't render Devanagari characters on API 15.
+	// * RTL languages are supported since API >= 17
+	public static boolean isLocaleSupported(Locale locale) {
+		if (SDK_INT >= 21) return true;
+		if (locale.getLanguage().equals("ast")) return false;
+		if (SDK_INT == 15 && locale.getLanguage().equals("hi")) return false;
+		if (SDK_INT >= 17) return true;
+		return isLeftToRight(locale);
+	}
+
+	// Exclude RTL locales on API < 17, they won't be laid out correctly
+	private static boolean isLeftToRight(Locale locale) {
+		// TextUtilsCompat returns the wrong direction for Hebrew on some phones
+		String language = locale.getLanguage();
+		if (language.equals("iw") || language.equals("he")) return false;
+		int direction = TextUtilsCompat.getLayoutDirectionFromLocale(locale);
+		return direction == LAYOUT_DIRECTION_LTR;
+	}
+
 }
diff --git a/briar-android/src/main/java/org/briarproject/briar/android/settings/SettingsFragment.java b/briar-android/src/main/java/org/briarproject/briar/android/settings/SettingsFragment.java
index 7412b213f..2be89b19e 100644
--- a/briar-android/src/main/java/org/briarproject/briar/android/settings/SettingsFragment.java
+++ b/briar-android/src/main/java/org/briarproject/briar/android/settings/SettingsFragment.java
@@ -44,7 +44,6 @@ import javax.inject.Inject;
 import androidx.annotation.Nullable;
 import androidx.annotation.StringRes;
 import androidx.core.content.ContextCompat;
-import androidx.core.text.TextUtilsCompat;
 import androidx.preference.ListPreference;
 import androidx.preference.Preference;
 import androidx.preference.Preference.OnPreferenceChangeListener;
@@ -70,7 +69,6 @@ import static android.provider.Settings.EXTRA_APP_PACKAGE;
 import static android.provider.Settings.EXTRA_CHANNEL_ID;
 import static android.provider.Settings.System.DEFAULT_NOTIFICATION_URI;
 import static android.widget.Toast.LENGTH_SHORT;
-import static androidx.core.view.ViewCompat.LAYOUT_DIRECTION_LTR;
 import static java.util.Objects.requireNonNull;
 import static java.util.logging.Level.INFO;
 import static java.util.logging.Level.WARNING;
@@ -296,10 +294,10 @@ public class SettingsFragment extends PreferenceFragmentCompat
 			Locale locale = Localizer.getLocaleFromTag(tag);
 			if (locale == null)
 				throw new IllegalStateException();
-			// Exclude RTL locales on API < 17, they won't be laid out correctly
-			if (SDK_INT < 17 && !isLeftToRight(locale)) {
+			// Check if the locale is supported on this device
+			if (!Localizer.isLocaleSupported(locale)) {
 				if (LOG.isLoggable(INFO))
-					LOG.info("Skipping RTL locale " + tag);
+					LOG.info("Skipping unsupported locale " + tag);
 				continue;
 			}
 			String nativeName = locale.getDisplayName(locale);
@@ -319,13 +317,6 @@ public class SettingsFragment extends PreferenceFragmentCompat
 		language.setEntryValues(entryValues.toArray(new CharSequence[0]));
 	}
 
-	private boolean isLeftToRight(Locale locale) {
-		// TextUtilsCompat returns the wrong direction for Hebrew on some phones
-		String language = locale.getLanguage();
-		if (language.equals("iw") || language.equals("he")) return false;
-		int direction = TextUtilsCompat.getLayoutDirectionFromLocale(locale);
-		return direction == LAYOUT_DIRECTION_LTR;
-	}
 
 	private void setTorNetworkSummary(int torNetworkSetting) {
 		if (torNetworkSetting != PREF_TOR_NETWORK_AUTOMATIC) {