diff --git a/content/reference-targets/stm32f429i-discovery.md b/content/reference-targets/stm32f429i-discovery.md
index ee7983acd..1638c392b 100644
--- a/content/reference-targets/stm32f429i-discovery.md
+++ b/content/reference-targets/stm32f429i-discovery.md
@@ -21,6 +21,8 @@
 
 The ready to use firmware images provided include support for the class libraries and features marked bellow.
 
+> **Warning:** This firmware is built for hardware version B01. If you have a board with the new revision E01, the device won't be recognized.
+
 | Gpio | Spi | I2c | Pwm | Adc | Serial | Events | SWO | Networking | Large Heap |
 |:---:|:---:|:---:|:---:|:---:|:---:|:---:|:---:|:---:|:---:|
 | :heavy_check_mark: | :heavy_check_mark: | :heavy_check_mark: | :heavy_check_mark: | | :heavy_check_mark: | :heavy_check_mark: | :heavy_check_mark: | | :heavy_check_mark: |