diff --git a/README.md b/README.md
index 5235760c..234caeeb 100644
--- a/README.md
+++ b/README.md
@@ -13,21 +13,9 @@ bbs: [中文论坛Chinese bbs](http://bbs.nodemcu.com)<br />
 Tencent QQ group QQ群: 309957875<br />
 
 # Change log
-2014-12-26<br />
-fix a bug when readline from uart.<br />
-
-2014-12-22<br />
-update to sdk 0.9.4<br />
-opensource<br />
-folder "pre_build" contain pre-build bin firmware.<br />
-folder "lua_examples" contain some pure lua examples.<br />
-folder "lua_modules" contain some pure lua lib based on NodeMCU.<br />
-
-2014-12-19<br />
-**Important** Re-arrange GPIO MAP due to development kit.[New Gpio Map](#new_gpio_map)<br />
-Add bitwise operation module.<br />
-Modify net.socket:connect() api to accept domain name, auto DNS.
-
+2014-12-30<br />
+modify uart.on api, when run_input set to 0, uart.on now can read raw data from uart.<br />
+serial input now accept non-ascii chars
 
 [more change log](https://github.com/nodemcu/nodemcu-firmware/wiki/nodemcu_api_en#change_log)<br />
 [更多变更日志](https://github.com/nodemcu/nodemcu-firmware/wiki/nodemcu_api_cn#change_log)
diff --git a/app/platform/pin_map.c b/app/platform/pin_map.c
index a3f64859..21b35b8d 100644
--- a/app/platform/pin_map.c
+++ b/app/platform/pin_map.c
@@ -20,17 +20,17 @@ GPIO_INT_TYPE pin_int_type[GPIO_PIN_NUM] = {
 								GPIO_PIN_INTR_DISABLE, GPIO_PIN_INTR_DISABLE, GPIO_PIN_INTR_DISABLE, GPIO_PIN_INTR_DISABLE};
 #endif
 #else
-uint32_t pin_mux[GPIO_PIN_NUM] = {PAD_XPD_DCDC_CONF,  PERIPHS_IO_MUX_GPIO4_U,  PERIPHS_IO_MUX_GPIO5_U, 	 PERIPHS_IO_MUX_GPIO0_U,
+uint32_t pin_mux[GPIO_PIN_NUM] = {PAD_XPD_DCDC_CONF,  PERIPHS_IO_MUX_GPIO5_U,  PERIPHS_IO_MUX_GPIO4_U, 	 PERIPHS_IO_MUX_GPIO0_U,
 								  PERIPHS_IO_MUX_GPIO2_U, PERIPHS_IO_MUX_MTMS_U, PERIPHS_IO_MUX_MTDI_U, PERIPHS_IO_MUX_MTCK_U,
 								  PERIPHS_IO_MUX_MTDO_U, PERIPHS_IO_MUX_U0RXD_U, PERIPHS_IO_MUX_U0TXD_U, PERIPHS_IO_MUX_SD_DATA2_U,
 								  PERIPHS_IO_MUX_SD_DATA3_U };
 
-uint8_t pin_num[GPIO_PIN_NUM] = {16, 4, 5, 0,
+uint8_t pin_num[GPIO_PIN_NUM] = {16, 5, 4, 0,
 								  2,  14,  12, 13,
 								  15,  3,  1, 9,
 								  10};
 
-uint8_t pin_func[GPIO_PIN_NUM] = {0, FUNC_GPIO4, FUNC_GPIO5, FUNC_GPIO0,
+uint8_t pin_func[GPIO_PIN_NUM] = {0, FUNC_GPIO5, FUNC_GPIO4, FUNC_GPIO0,
 								  FUNC_GPIO2,  FUNC_GPIO14,  FUNC_GPIO12,  FUNC_GPIO13,
 								  FUNC_GPIO15,  FUNC_GPIO3,  FUNC_GPIO1, FUNC_GPIO9,
 								  FUNC_GPIO10};
diff --git a/pre_build/0.9.4/512k-flash/nodemcu_512k_20141226.bin b/pre_build/0.9.4/512k-flash/nodemcu_512k_20141226.bin
new file mode 100644
index 00000000..1cd04c3f
Binary files /dev/null and b/pre_build/0.9.4/512k-flash/nodemcu_512k_20141226.bin differ
diff --git a/pre_build/0.9.4/512k-flash/nodemcu_512k_latest.bin b/pre_build/0.9.4/512k-flash/nodemcu_512k_latest.bin
index 1cd04c3f..69f33a9c 100644
Binary files a/pre_build/0.9.4/512k-flash/nodemcu_512k_latest.bin and b/pre_build/0.9.4/512k-flash/nodemcu_512k_latest.bin differ
diff --git a/pre_build/latest/nodemcu_512k_latest.bin b/pre_build/latest/nodemcu_512k_latest.bin
index 1cd04c3f..69f33a9c 100644
Binary files a/pre_build/latest/nodemcu_512k_latest.bin and b/pre_build/latest/nodemcu_512k_latest.bin differ