diff --git a/X260.bbb b/X260.bbb
new file mode 100644
index 0000000..4459e3c
Binary files /dev/null and b/X260.bbb differ
diff --git a/thinkpad_unlock_bios.c b/thinkpad_unlock_bios.c
index fc61f00..8866658 100644
--- a/thinkpad_unlock_bios.c
+++ b/thinkpad_unlock_bios.c
@@ -3,12 +3,26 @@
 
 /* run this program using the console pauser or add your own getch, system("pause") or input loop */
 
-const char bios_head[32]=
+const char bios_head_X250[32]=
 {
 0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0x5A,0xA5,0xF0,0x0F,0x03,0x00,0x04,0x03,0x06,0x02,0x10,0x15,0x20,0x01,0x21,0x00
 };
+const char bios_head_X260[32]=
+{
+0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0x5A,0xA5,0xF0,0x0F,0x03,0x00,0x04,0x00,0x08,0x02,0x10,0x42,0x30,0x03,0x31,0x00
+};
+
+/*
+bios type:
+
+ 0: need change
+ 1: X250
+ 2: X260
+ 
+
+*/
+char bios_type=0; 
 char buff[0xffffff];
-char id[32];
 char outputdir[256];
 char inputdir[256];
 char chack_str(const char *a,char *b,int len)
@@ -24,8 +38,135 @@ char chack_str(const char *a,char *b,int len)
 	return 0;
 }
 
-void tryunlock(char *dir)
+
+void change_bios_type()
 {
+	FILE *unlock_bios = NULL;
+
+	
+	do
+	{
+		printf("选择BIOS机型：（输入编号）\n 1-> X250 \n 2-> X260 \n");
+		scanf("%d",&bios_type);	
+		
+		if(bios_type==1)
+		{
+			unlock_bios=fopen("./X250.bbb","rb");
+		}
+		if(bios_type==2)
+		{
+			unlock_bios=fopen("./X260.bbb","rb");
+		}
+		if(unlock_bios==NULL)
+		{
+			printf("ERROR_NOTFUND_THE_S_FILE\n");
+			bios_type=0; 
+		}		
+	}while(bios_type==0);
+
+	fread(buff,0xffffff,1,unlock_bios);	
+	fclose(unlock_bios);
+	
+/*	
+	
+	
+
+*/	
+}
+
+
+char tryunlock(char *dir)
+{
+	int a=0;
+	if(dir==NULL)
+	{
+		printf(" 直接输入BIOS路径:\n 或输入命令:\n change    改变BIOS类型。\n exit      退出程序 \n");
+		for(a=0;a<256;a++)
+		{
+			inputdir[a]=0;
+		}
+		scanf("%s",inputdir);
+		if(chack_str("change",inputdir,6)==0)
+		{
+			change_bios_type();
+			return 1;
+		}
+		if(chack_str("exit",inputdir,4)==0)
+		{
+			return 0;
+		}
+	}else
+	{
+		a=0;
+		while(dir[a]!='\0')
+		{
+			inputdir[a]=dir[a];
+			a++;
+		}
+	}
+
+	if(bios_type==0)
+	{
+		change_bios_type();
+		
+	}
+	
+	printf("Input flie  %s\n",inputdir);
+	
+	FILE *bios=NULL;
+	FILE *output_bios=NULL;
+	bios=fopen(inputdir,"rb");
+	char id[32];
+	
+	if(bios==NULL)
+	{
+		printf("ERROR. can't Open file ..\n");
+	}else
+	{
+		fread(id,32,1,bios);
+		if(chack_str(buff,id,32))
+		{
+			printf("ERROR. Not Bios File\n");
+		}else
+		{
+			//printf("try it..\n");
+			if(fseek(bios,0xf00,SEEK_SET))
+			{
+				printf("ERROR. -0\n");
+			}else
+			{
+				fread(id,32,1,bios);
+				for(a=0;a<32;a++)
+				{
+					buff[0xf00+a]=id[a];
+				}
+				for(a=0;a<256;a++)
+				{
+					outputdir[a]=0;
+				}
+				printf("id: %s \n",id);
+				sprintf(outputdir,"%s%s",inputdir,"_unlock.bin");
+				printf("Output flie %s",outputdir);
+				output_bios=fopen(outputdir,"wb");
+				if(output_bios==NULL)
+				{
+					printf("ERROR. can't Output file ..\n");
+				}else
+				{
+					fwrite(buff,0xffffff,1,output_bios);
+					fclose(output_bios);
+				}
+				
+				printf("\n\n");
+			}
+		}
+		
+	}
+	
+	fclose(bios);
+	
+	return 1;
+	/*
 	int a;
 	FILE *bios=NULL;
 	FILE *output_bios=NULL;
@@ -76,6 +217,7 @@ void tryunlock(char *dir)
 	}
 	
 	fclose(bios);
+	*/
 }
 	
 int main(int argc, char *argv[])
@@ -83,7 +225,7 @@ int main(int argc, char *argv[])
 	printf("ThinkPad Bios unlock..v0.1\n\n\n");
 	if(argc==1)
 	{
-		printf("联想ThinkPad Bios超级密码解锁程序（目前仅支持X250）\n\n使用方法：\n");
+		printf("联想ThinkPad Bios超级密码解锁程序。支持X250，X260（测试）\n\n使用方法：\n");
 		printf("1 使用编程器将原机Bios读出\n");
 		printf("2 将读出的内容以二进制格式bin保存\n");
 		printf("3 将bin文件拖进本程序，程序会自动生成解锁Bios，（支持批量拖入）\n");  
@@ -92,42 +234,21 @@ int main(int argc, char *argv[])
 		printf("编写日期 2021-12-12 00:46 联系 吴文峰 邮箱 kevin@lmve.net \n\n");
 		printf("项目地址 https://git.lmve.net/kevin/thinkpad_unlock_bios \n博客地址 https://wnfed.com \n\n！！！请勿商用！！！\n\n");	
 	}
-	
-	int a;
-	FILE *unlock_bios = NULL;	
-	unlock_bios=fopen("./X250.bbb","rb");
-	if(unlock_bios==NULL)
-	{
-		printf("ERROR_NOTFUND_THE_BIOS_FILE\n");
-		return -1;
-	}
-	fread(buff,0xffffff,1,unlock_bios);
-	
+		
 	while(argc>1)
 	{
 	
 		argc--;
-		printf("Input flie  %s\n",argv[argc]);
 		tryunlock(argv[argc]);
 	}
 	printf("\n");
-
 	printf("\n");
 	
-	while(1)
+	char while_flag=0;
+	do
 	{
-		printf("请输入Bios文件路径，可通过拖拽文件到窗口快速输入，输入exit退出。\ndir:");
-		for(a=0;a<256;a++)
-		{
-			inputdir[a]=0;
-		}
-		scanf("%s",inputdir);
-		if(chack_str("exit",inputdir,4)==0)
-		{
-			return 0;
-		}
-		tryunlock(inputdir);
-	}
+		while_flag=tryunlock(NULL);
+	}while(while_flag);
 	
 	//printf("have %d file\n",argc-1);
 	//printf(argv[1]);
diff --git a/thinkpad_unlock_bios.exe b/thinkpad_unlock_bios.exe
index 85893db..142cb4e 100644
Binary files a/thinkpad_unlock_bios.exe and b/thinkpad_unlock_bios.exe differ