diff --git a/avr/devices/0BUILD b/avr/devices/0BUILD
index 81d626e..6350105 100644
--- a/avr/devices/0BUILD
+++ b/avr/devices/0BUILD
@@ -34,7 +34,6 @@
     n26
     n27
     n28
-    r05
     r06
     s03
     t03
diff --git a/avr/devices/r05/boot/boot.asm b/avr/devices/r05/boot/boot.asm
index d86fa14..ac13b61 100644
--- a/avr/devices/r05/boot/boot.asm
+++ b/avr/devices/r05/boot/boot.asm
@@ -18,6 +18,7 @@
 .include "devices/all/defs.asm"
 
 .include "common/calls.asm"
+.include "common/utils_io.asm"
 .include "common/utils_wait.asm"
 
 
@@ -119,8 +120,7 @@ main:
 .include "modules/flash/defs.asm"
 .include "modules/flash/eeprom.asm"
 .include "modules/flash/io.asm"
-.include "modules/flash/io_attn.asm"
-.include "modules/flash/io_bitbang.asm"
+.include "modules/flash/io_com2w.asm"
 .include "modules/flash/flashxp.asm"
 .include "modules/flash/flash4p.asm"
 .include "modules/flash/flashprocess.asm"