diff --git a/0.9.2/1M-flash/README.md b/0.9.2/1M-flash/README.md
new file mode 100644
index 00000000..6f90e9d6
--- /dev/null
+++ b/0.9.2/1M-flash/README.md
@@ -0,0 +1,9 @@
+#Flash the firmware
+nodemcu_1M_xxxxx.bin: 0x00000<br />
+
+
+#Or
+eagle.app.v6.flash.bin: 0x00000<br />
+eagle.app.v6.irom0text.bin: 0x10000<br />
+esp_init_data_default.bin: 0xfc000<br />
+blank.bin: 0xfe000
diff --git a/0.9.2/1M-flash/nodemcu_1M_20141219.bin b/0.9.2/1M-flash/nodemcu_1M_20141219.bin
new file mode 100644
index 00000000..a052dda2
Binary files /dev/null and b/0.9.2/1M-flash/nodemcu_1M_20141219.bin differ
diff --git a/0.9.2/2M-flash/README.md b/0.9.2/2M-flash/README.md
new file mode 100644
index 00000000..19813d45
--- /dev/null
+++ b/0.9.2/2M-flash/README.md
@@ -0,0 +1,9 @@
+#Flash the firmware
+nodemcu_2M_xxxxx.bin: 0x00000<br />
+
+
+#Or
+eagle.app.v6.flash.bin: 0x00000<br />
+eagle.app.v6.irom0text.bin: 0x10000<br />
+esp_init_data_default.bin: 0x1fc000<br />
+blank.bin: 0x1fe000
diff --git a/0.9.2/2M-flash/blank.bin b/0.9.2/2M-flash/blank.bin
new file mode 100644
index 00000000..7de9e36a
--- /dev/null
+++ b/0.9.2/2M-flash/blank.bin
@@ -0,0 +1 @@
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\ No newline at end of file
diff --git a/0.9.2/2M-flash/eagle.app.v6.flash.bin b/0.9.2/2M-flash/eagle.app.v6.flash.bin
new file mode 100644
index 00000000..4558f209
Binary files /dev/null and b/0.9.2/2M-flash/eagle.app.v6.flash.bin differ
diff --git a/0.9.2/2M-flash/eagle.app.v6.irom0text.bin b/0.9.2/2M-flash/eagle.app.v6.irom0text.bin
new file mode 100644
index 00000000..9a03f084
Binary files /dev/null and b/0.9.2/2M-flash/eagle.app.v6.irom0text.bin differ
diff --git a/0.9.2/2M-flash/esp_init_data_default.bin b/0.9.2/2M-flash/esp_init_data_default.bin
new file mode 100644
index 00000000..2936c7b7
Binary files /dev/null and b/0.9.2/2M-flash/esp_init_data_default.bin differ
diff --git a/0.9.2/2M-flash/nodemcu_2M_20141219.bin b/0.9.2/2M-flash/nodemcu_2M_20141219.bin
new file mode 100644
index 00000000..6e2103c8
Binary files /dev/null and b/0.9.2/2M-flash/nodemcu_2M_20141219.bin differ
diff --git a/0.9.2/4M-flash/README.md b/0.9.2/4M-flash/README.md
new file mode 100644
index 00000000..1ef91fc7
--- /dev/null
+++ b/0.9.2/4M-flash/README.md
@@ -0,0 +1,8 @@
+#Flash the firmware
+
+eagle.app.v6.flash.bin: 0x00000<br />
+eagle.app.v6.irom0text.bin: 0x10000<br />
+esp_init_data_default.bin: 0x3fc000<br />
+blank.bin: 0x3fe000
+
+###ESP8266's bootloader doesn't support flashing a single file 4Mbytes.
diff --git a/0.9.2/4M-flash/blank.bin b/0.9.2/4M-flash/blank.bin
new file mode 100644
index 00000000..7de9e36a
--- /dev/null
+++ b/0.9.2/4M-flash/blank.bin
@@ -0,0 +1 @@
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\ No newline at end of file
diff --git a/0.9.2/4M-flash/eagle.app.v6.flash.bin b/0.9.2/4M-flash/eagle.app.v6.flash.bin
new file mode 100644
index 00000000..4558f209
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diff --git a/0.9.2/4M-flash/eagle.app.v6.irom0text.bin b/0.9.2/4M-flash/eagle.app.v6.irom0text.bin
new file mode 100644
index 00000000..52b7bb15
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diff --git a/0.9.2/4M-flash/esp_init_data_default.bin b/0.9.2/4M-flash/esp_init_data_default.bin
new file mode 100644
index 00000000..2936c7b7
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diff --git a/0.9.2/512k-flash/README.md b/0.9.2/512k-flash/README.md
new file mode 100644
index 00000000..66f31577
--- /dev/null
+++ b/0.9.2/512k-flash/README.md
@@ -0,0 +1,3 @@
+#Flash the firmware
+nodemcu_512k_xxxxx.bin: 0x00000<br />
+
diff --git a/0.9.2/512k-flash/nodemcu_512k_20141219.bin b/0.9.2/512k-flash/nodemcu_512k_20141219.bin
index aef51a9f..37e12ab7 100644
Binary files a/0.9.2/512k-flash/nodemcu_512k_20141219.bin and b/0.9.2/512k-flash/nodemcu_512k_20141219.bin differ
diff --git a/README.md b/README.md
index 62d8d441..9e650c42 100644
--- a/README.md
+++ b/README.md
@@ -5,7 +5,8 @@ version 0.9.2 build 2014-12-19
 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.
+Modify net.socket:connect() api to accept domain name, auto DNS.<br />
+Add firmware for flash size 1Mbytes, 2Mbytes, 4Mbytes.
 
 
 [more change log](https://github.com/nodemcu/nodemcu-firmware/wiki/nodemcu_api_en#change_log)<br />