diff --git a/.platformio/platforms/at32/boards/generic_f403a.json b/.platformio/platforms/at32/boards/generic_f403a.json
index 818d2f5..9da6cdb 100644
--- a/.platformio/platforms/at32/boards/generic_f403a.json
+++ b/.platformio/platforms/at32/boards/generic_f403a.json
@@ -6,8 +6,8 @@
     "f_cpu": "240000000L",
     "hwids": [
       [
-        "0x1EAF",
-        "0x0003"
+        "0x2E3C",
+        "0xDF11"
       ],
       [
         "0x1EAF",
diff --git a/README.md b/README.md
index 77c7a6f..324fda1 100644
--- a/README.md
+++ b/README.md
@@ -1,18 +1,24 @@
 # Artery-AT32-PlatformIO
  PlatformIO platform and framework for Artery AT32 MCU
 
-Released specifically for latest MCU AT32F403A with Visual Studio Code & PlatformIO.
+Released specifically for latest AT32F403A MCU with Visual Studio Code & PlatformIO.
 
 ## Instructions
-1) Copy the folders under .platformio in your .platformio folder (ie: C:\Users\(username)\.platformio)
+1) Copy the folders under .platformio into your .platformio folder (ie: C:\Users\(username)\.platformio)
 2) Open Visual Studio Code, you should see AT32 Platform among the available platforms
 3) Open one of the example folder and try to compile / upload
 
 # Upload on MCU
-1) For now it is implemented a custom bootloader based on serial bootloader
-2) Set the serial port in the file platformio.ini in the project folder
-3) Run the Upload
+Available upload methods: serial bootloader, dfu
+1) Set it in the file platformio.ini in the project folder, complete configuration options in Example project cmsis-blink
+2) Run the Upload
 
+Notes: serial bootloader speed seems to work up to 115200 (at higher speed often it doesn't work)
+
+# Supported
+- Hardware Floating point unit (FPU)
+
+# TO-DO List
 
 # AT32F403A on Bluepill PCB
 You can replace the MCU on the Bluepilll board with the AT32F403A. It is pin fully compatible.