--- zzzz-none-000/linux-4.4.60/drivers/scsi/scsi_lib.c	2017-04-08 07:53:53.000000000 +0000
+++ dragonfly-4020-701/linux-4.4.60/drivers/scsi/scsi_lib.c	2018-11-08 13:36:17.000000000 +0000
@@ -949,8 +949,14 @@
 				/* Detected disc change.  Set a bit
 				 * and quietly refuse further access.
 				 */
+/* == 20171005 AVM/VGJ - Some devices need a retry after resume == */
+#if CONFIG_AVM_USB_PM
+				action = ACTION_DELAYED_RETRY;
+				printk(KERN_INFO "%s(): possible media change detected - retry\n", __func__);
+#else
 				cmd->device->changed = 1;
 				action = ACTION_FAIL;
+#endif
 			} else {
 				/* Must have been a power glitch, or a
 				 * bus reset.  Could not have been a