diff --git a/src/bios/exp/EXP.asm b/src/bios/exp/EXP.asm
index f549860..a586d65 100644
--- a/src/bios/exp/EXP.asm
+++ b/src/bios/exp/EXP.asm
@@ -315,8 +315,8 @@ NO_RESTART:
 	OUT	(C),A	; Z84.SYS.Control
 	INC	C
 	; no boundary set!
-	XOR	A							; disable CS0, disable CS1
-	;LD	A,1							; enable CS0, disable CS1
+	;XOR	A							; disable CS0, disable CS1
+	LD	A,1							; enable CS0, disable CS1
 	OUT	(C),A	; Z84.SYS.Data
 	JP	POST_TEST.START
 ;--==--==--==--==--==--==--==--==--==--==--==--==--==--==--==--==--==--==--==--==--==--==--==--==--==--==--==--==--==--==--==--==
diff --git a/src/bios/shared/RECOVERY.IMG b/src/bios/shared/RECOVERY.IMG
index f67a1a3..3c046d8 100755
Binary files a/src/bios/shared/RECOVERY.IMG and b/src/bios/shared/RECOVERY.IMG differ