diff --git a/bootloader05/bootloader05.elf b/bootloader05/bootloader05.elf
index 4ff9283..d0df2ff 100755
Binary files a/bootloader05/bootloader05.elf and b/bootloader05/bootloader05.elf differ
diff --git a/bootloader05/bootloader05.hex b/bootloader05/bootloader05.hex
index 16314cc..8857cf0 100644
--- a/bootloader05/bootloader05.hex
+++ b/bootloader05/bootloader05.hex
@@ -129067,7 +129067,7 @@
 :10009000E3FFFFEB200010E3FBFFFF0A10009FE5EA
 :1000A0000410A0E1D8FFFFEB1040BDE81EFF2FE1D8
 :1000B000545021204050212008402DE910009FE598
-:1000C000D7FFFFEB010C10E3FBFFFF0A0840BDE880
+:1000C000D7FFFFEB010C10E3FBFFFF1A0840BDE870
 :1000D0001EFF2FE15450212038402DE90050A0E1AF
 :1000E0002040A0E3044044E23534A0E10F3003E2B5
 :1000F000090053E33700838230008392E0FFFFEB77
diff --git a/bootloader05/bootloader05.list b/bootloader05/bootloader05.list
index 9da267f..4d5c832 100644
--- a/bootloader05/bootloader05.list
+++ b/bootloader05/bootloader05.list
@@ -83,7 +83,7 @@ Disassembly of section .text:
   2000bc:	e59f0010 	ldr	r0, [pc, #16]	; 2000d4 <uart_flush+0x1c>
   2000c0:	ebffffd7 	bl	200024 <GET32>
   2000c4:	e3100c01 	tst	r0, #256	; 0x100
-  2000c8:	0afffffb 	beq	2000bc <uart_flush+0x4>
+  2000c8:	1afffffb 	bne	2000bc <uart_flush+0x4>
   2000cc:	e8bd4008 	pop	{r3, lr}
   2000d0:	e12fff1e 	bx	lr
   2000d4:	20215054 	eorcs	r5, r1, r4, asr r0
diff --git a/bootloader05/kernel.img b/bootloader05/kernel.img
index c407d30..4bb5b37 100755
Binary files a/bootloader05/kernel.img and b/bootloader05/kernel.img differ
diff --git a/bootloader05/periph.c b/bootloader05/periph.c
index 7a396b3..02faee9 100644
--- a/bootloader05/periph.c
+++ b/bootloader05/periph.c
@@ -61,7 +61,7 @@ void uart_flush ( void )
 {
     while(1)
     {
-        if(GET32(AUX_MU_LSR_REG)&0x100) break;
+        if((GET32(AUX_MU_LSR_REG)&0x100)==0) break;
     }
 }
 //------------------------------------------------------------------------
diff --git a/bootloader05/periph.o b/bootloader05/periph.o
index 21b521e..95480fb 100644
Binary files a/bootloader05/periph.o and b/bootloader05/periph.o differ