--- functions.old	2021-09-28 08:29:00.723959121 +0200
+++ functions	2021-09-28 08:22:16.729213131 +0200
@@ -347,6 +347,11 @@
                 add_file "$fwpath/$fw" "$fwpath/$fw" 644 && r=0
                 break
             fi
+	    # check for compressed fw
+	    if [[ -f $fwpath/$fw.xz ]]; then
+                add_file "$fwpath/$fw.xz" "$fwpath/$fw.xz" 644 && r=0
+                break
+            fi
         done
     done