diff --git a/src/brut/androlib/res/data/ResConfigFlags.java b/src/brut/androlib/res/data/ResConfigFlags.java
index 2fc1975f..2c481f87 100644
--- a/src/brut/androlib/res/data/ResConfigFlags.java
+++ b/src/brut/androlib/res/data/ResConfigFlags.java
@@ -43,6 +43,8 @@ public class ResConfigFlags {
     public final byte screenLayout;
     public final byte uiMode;
 
+    public final boolean isInvalid;
+
     private final String mQualifiers;
 
     public ResConfigFlags() {
@@ -61,6 +63,7 @@ public class ResConfigFlags {
         sdkVersion = 0;
         screenLayout = SCREENLONG_ANY | SCREENSIZE_ANY;
         uiMode = UI_MODE_TYPE_ANY | UI_MODE_NIGHT_ANY;
+        isInvalid = false;
         mQualifiers = "";
     }
 
@@ -68,7 +71,7 @@ public class ResConfigFlags {
             byte orientation, byte touchscreen, short density, byte keyboard,
             byte navigation, byte inputFlags, short screenWidth,
             short screenHeight, short sdkVersion, byte screenLayout,
-            byte uiMode) {
+            byte uiMode, boolean isInvalid) {
         this.mcc = mcc;
         this.mnc = mnc;
         this.language = language;
@@ -84,6 +87,7 @@ public class ResConfigFlags {
         this.sdkVersion = sdkVersion;
         this.screenLayout = screenLayout;
         this.uiMode = uiMode;
+        this.isInvalid = isInvalid;
         mQualifiers = generateQualifiers();
     }
 
@@ -234,6 +238,9 @@ public class ResConfigFlags {
         if (sdkVersion > getNaturalSdkVersionRequirement()) {
             ret.append("-v").append(sdkVersion);
         }
+        if (isInvalid) {
+            ret.append("-[ERR]");
+        }
 
         return ret.toString();
     }
diff --git a/src/brut/androlib/res/decoder/ARSCDecoder.java b/src/brut/androlib/res/decoder/ARSCDecoder.java
index b1e4d4c2..6229bd06 100644
--- a/src/brut/androlib/res/decoder/ARSCDecoder.java
+++ b/src/brut/androlib/res/decoder/ARSCDecoder.java
@@ -143,7 +143,11 @@ public class ARSCDecoder {
         int[] entryOffsets = mIn.readIntArray(entryCount);
 
         ResConfig config;
-        if (mPkg.hasConfig(flags)) {
+        if (flags.isInvalid) {
+            config = null;
+            LOGGER.warning(
+                "Invalid config flags detected. Dropping resources: " + mType.getName() + flags.getQualifiers());
+        } else if (mPkg.hasConfig(flags)) {
             config = mPkg.getConfig(flags);
         } else {
             config = new ResConfig(flags);
@@ -167,6 +171,13 @@ public class ARSCDecoder {
         short flags = mIn.readShort();
         int specNamesId = mIn.readInt();
 
+        ResValue value = (flags & ENTRY_FLAG_COMPLEX) == 0 ?
+            readValue() : readComplexEntry();
+
+        if (mConfig == null) {
+            return;
+        }
+
         ResID resId = new ResID(mResId);
         ResResSpec spec;
         if (mPkg.hasResSpec(resId)) {
@@ -177,9 +188,6 @@ public class ARSCDecoder {
             mPkg.addResSpec(spec);
             mType.addResSpec(spec);
         }
-
-        ResValue value = (flags & ENTRY_FLAG_COMPLEX) == 0 ?
-            readValue() : readComplexEntry();
         ResResource res = new ResResource(mConfig, spec, value);
 
         mConfig.addResource(res);
@@ -219,6 +227,8 @@ public class ARSCDecoder {
             throw new AndrolibException("Config size < 28");
         }
 
+        boolean isInvalid = false;
+
         short mcc = mIn.readShort();
         short mnc = mIn.readShort();
 
@@ -262,7 +272,8 @@ public class ARSCDecoder {
 
         return new ResConfigFlags(mcc, mnc, language, country, orientation,
             touchscreen, density, keyboard, navigation, inputFlags,
-            screenWidth, screenHeight, sdkVersion, screenLayout, uiMode);
+            screenWidth, screenHeight, sdkVersion, screenLayout, uiMode,
+            isInvalid);
     }
 
     private void addMissingResSpecs() throws AndrolibException {