diff -Naur idle-lisa-emu-code-r26/disk/disk_ctrl.c idle-lisa-emu-code-r26-patched/disk/disk_ctrl.c
--- idle-lisa-emu-code-r26/disk/disk_ctrl.c	2018-02-01 17:28:51.000000000 +0300
+++ idle-lisa-emu-code-r26-patched/disk/disk_ctrl.c	2024-12-15 22:02:53.996851607 +0300
@@ -66,7 +66,7 @@
 
 static int disk_present=0;
 
-static int s_revision=0xA8;
+static int s_revision=0x88;
 
 static int drive;
 static int side;
@@ -780,7 +780,12 @@
      for (i=0;i<0x400;i++)     
          floppy_shared_tab[i]=0x00; 
 
-    s_revision=revision;
+	if (revision == 0xA8) {
+		s_revision=0x88;
+	} else {
+		s_revision=revision;
+	}
+
     IDLE_TRACE("io model is:%x",revision);
 
     floppy_shared_tab[0x18]=s_revision; // rom version
