--- zzzz-none-000/linux-3.10.107/drivers/mtd/mtdchar.c	2017-06-27 09:49:32.000000000 +0000
+++ vr9-7490-729/linux-3.10.107/drivers/mtd/mtdchar.c	2021-11-10 11:53:55.000000000 +0000
@@ -1004,9 +1004,14 @@
 	}
 
 	case BLKRRPART:
+	case MTDREFRESH:
 	{
+#if IS_ENABLED(CONFIG_AVM_ENHANCED)
+		ret = mtd_refresh_partitions(mtd);
+#else
 		/* No reread partition feature. Just return ok */
 		ret = 0;
+#endif
 		break;
 	}