diff --git a/res/drawable/ic_info.xml b/res/drawable/ic_info.xml
new file mode 100644
index 0000000..cf53e14
--- /dev/null
+++ b/res/drawable/ic_info.xml
@@ -0,0 +1,9 @@
+<vector xmlns:android="http://schemas.android.com/apk/res/android"
+        android:width="24dp"
+        android:height="24dp"
+        android:viewportWidth="24.0"
+        android:viewportHeight="24.0">
+    <path
+        android:fillColor="#FF000000"
+        android:pathData="M11,17h2v-6h-2v6zM12,2C6.48,2 2,6.48 2,12s4.48,10 10,10 10,-4.48 10,-10S17.52,2 12,2zM12,20c-4.41,0 -8,-3.59 -8,-8s3.59,-8 8,-8 8,3.59 8,8 -3.59,8 -8,8zM11,9h2L13,7h-2v2z"/>
+</vector>
diff --git a/res/values/strings.xml b/res/values/strings.xml
index 7522a24..16cbc5a 100644
--- a/res/values/strings.xml
+++ b/res/values/strings.xml
@@ -87,6 +87,7 @@
     <string name="action_description_pause">Pause download</string>
     <string name="action_description_resume">Resume download</string>
     <string name="action_description_install">Install update</string>
+    <string name="action_description_info">Show information</string>
 
     <string name="confirm_delete_dialog_title">Delete file</string>
     <string name="confirm_delete_dialog_message">Delete the selected update file?</string>
@@ -121,4 +122,8 @@
     <string name="update_on_mobile_data_message">You\'re about to download an update package using mobile data which is likely going to cause high data usage. Would you like to proceed?</string>
     <string name="checkbox_mobile_data_warning">Do not show again</string>
     <string name="menu_mobile_data_warning">Mobile data warning</string>
+
+    <string name="blocked_update_dialog_title">Update blocked</string>
+    <string name="blocked_update_dialog_message">This update cannot be installed using the updater app.  Please read <xliff:g id="info_url">%1$s</xliff:g> for more information.</string>
+    <string name="blocked_update_info_url" translatable="false">http://wiki.lineageos.org/upgrading.html</string>
 </resources>
diff --git a/src/org/lineageos/updater/UpdatesListAdapter.java b/src/org/lineageos/updater/UpdatesListAdapter.java
index ca12244..5cb70df 100644
--- a/src/org/lineageos/updater/UpdatesListAdapter.java
+++ b/src/org/lineageos/updater/UpdatesListAdapter.java
@@ -22,7 +22,10 @@ import android.support.design.widget.Snackbar;
 import android.support.v7.app.AlertDialog;
 import android.support.v7.view.ActionMode;
 import android.support.v7.widget.RecyclerView;
+import android.text.SpannableString;
 import android.text.format.Formatter;
+import android.text.method.LinkMovementMethod;
+import android.text.util.Linkify;
 import android.util.Log;
 import android.util.TypedValue;
 import android.view.LayoutInflater;
@@ -68,7 +71,8 @@ public class UpdatesListAdapter extends RecyclerView.Adapter<UpdatesListAdapter.
         DOWNLOAD,
         PAUSE,
         RESUME,
-        INSTALL
+        INSTALL,
+        INFO,
     }
 
     public static class ViewHolder extends RecyclerView.ViewHolder {
@@ -186,6 +190,9 @@ public class UpdatesListAdapter extends RecyclerView.Adapter<UpdatesListAdapter.
         if (update.getPersistentStatus() == UpdateStatus.Persistent.VERIFIED) {
             viewHolder.itemView.setOnLongClickListener(getLongClickListener(update, true));
             setButtonAction(viewHolder.mAction, Action.INSTALL, update.getDownloadId(), !isBusy());
+        } else if (!Utils.canInstall(update)) {
+            viewHolder.itemView.setOnLongClickListener(getLongClickListener(update, false));
+            setButtonAction(viewHolder.mAction, Action.INFO, update.getDownloadId(), !isBusy());
         } else {
             viewHolder.itemView.setOnLongClickListener(getLongClickListener(update, false));
             setButtonAction(viewHolder.mAction, Action.DOWNLOAD, update.getDownloadId(), !isBusy());
@@ -358,6 +365,18 @@ public class UpdatesListAdapter extends RecyclerView.Adapter<UpdatesListAdapter.
                 };
             }
             break;
+            case INFO: {
+                button.setImageResource(R.drawable.ic_info);
+                button.setContentDescription(mActivity.getString(R.string.action_description_info));
+                button.setEnabled(enabled);
+                clickListener = !enabled ? null : new View.OnClickListener() {
+                    @Override
+                    public void onClick(View view) {
+                        showInfoDialog();
+                    }
+                };
+            }
+            break;
             default:
                 clickListener = null;
         }
@@ -541,4 +560,19 @@ public class UpdatesListAdapter extends RecyclerView.Adapter<UpdatesListAdapter.
         }
         stopActionMode();
     }
+
+    private void showInfoDialog() {
+        String messageString = String.format(StringGenerator.getCurrentLocale(mActivity),
+                mActivity.getString(R.string.blocked_update_dialog_message),
+                mActivity.getString(R.string.blocked_update_info_url));
+        SpannableString message = new SpannableString(messageString);
+        Linkify.addLinks(message, Linkify.WEB_URLS);
+        AlertDialog dialog = new AlertDialog.Builder(mActivity)
+                .setTitle(R.string.blocked_update_dialog_title)
+                .setPositiveButton(android.R.string.ok, null)
+                .setMessage(message)
+                .show();
+        TextView textView = (TextView) dialog.findViewById(android.R.id.message);
+        textView.setMovementMethod(LinkMovementMethod.getInstance());
+    }
 }