diff --git a/rom4x/B0_CFE5_monrw.s b/rom4x/B0_CFE5_monrw.s
index b129737..e961fad 100644
--- a/rom4x/B0_CFE5_monrw.s
+++ b/rom4x/B0_CFE5_monrw.s
@@ -9,7 +9,7 @@ DISPATCH = $C7FC
         .org $CFE5 ; 20 bytes here
 .ifdef EN_XMODEM
 lp:     jsr  GETNUM
-        sta  $00
+        ;sta  $00       ; DEBUG, comment out for release
         cmp  #$EB       ; 'R'
         beq :+
         cmp  #$F0       ; 'W'
diff --git a/rom4x/inc/xmodem.s b/rom4x/inc/xmodem.s
index 631708d..6767112 100644
--- a/rom4x/inc/xmodem.s
+++ b/rom4x/inc/xmodem.s
@@ -189,7 +189,7 @@ asftsave:   jsr asftprgio
 asftload:   jsr asftprgio       ; current length does not matter
             clc
             jsr xmentry
-            sta $300
+            ; sta $300          ; DEBUG, comment out for release
             bcs loaderr         ; if error, execute NEW
             lda A2L             ; otherwise A2L/H have exact end address
             ldy A2H             ; regardless of appended junk