diff --git a/docs/device/usb/webusb.md b/docs/device/usb/webusb.md
index c7f26afa..fb5e0024 100644
--- a/docs/device/usb/webusb.md
+++ b/docs/device/usb/webusb.md
@@ -9,7 +9,7 @@ It allows for a **one-click download** without installing any additional app or
 
 ## Prepare your @boardname@
 
-Make sure that your @boardname@ is running version **0250** or above of the firmware. Upgrading is as easy as dragging a file and it takes a few seconds to get it done.
+Make sure that your @boardname@ is running version **0249** or above of the firmware. Upgrading is as easy as dragging a file and it takes a few seconds to get it done.
 
 * [Check out the instructions to check and upgrade your @boardname@.](/device/usb/webusb/troubleshoot)
 
diff --git a/docs/device/usb/webusb/troubleshoot.md b/docs/device/usb/webusb/troubleshoot.md
index 12e42c20..17d0ad6a 100644
--- a/docs/device/usb/webusb/troubleshoot.md
+++ b/docs/device/usb/webusb/troubleshoot.md
@@ -33,7 +33,7 @@ It's possible that the firmware version on the @boardname@ needs an update. Let'
 
 If the version is **0234**, **0241**, **0243** you **NEED** to update the [firmware](/device/firmware) on your @boardname@. Go to **Step 3** and follow the upgrade instructions.
 
-If the version is **0250** or higher, **you have the right firmware**. You can create a [support ticket](https://support.microbit.org/support/tickets/new) to notify the Micro:bit Foundation of the problem. **Skip the rest of these steps**.
+If the version is **0249**, **0250** or higher, **you have the right firmware**. You can create a [support ticket](https://support.microbit.org/support/tickets/new) to notify the Micro:bit Foundation of the problem. **Skip the rest of these steps**.
 
 ## Step 3: Upgrade the firmware
 
diff --git a/editor/extension.ts b/editor/extension.ts
index c01e55c3..5de0b89e 100644
--- a/editor/extension.ts
+++ b/editor/extension.ts
@@ -867,7 +867,7 @@ namespace pxt.editor {
         <div class="ui grid stackable">
             <div class="column five wide" style="background-color: #FFFFCE;">
                 <div class="ui header">${lf("First time here?")}</div>
-                <strong style="font-size:small">${lf("You must have version 0250 or above of the firmware")}</strong>
+                <strong style="font-size:small">${lf("You must have version 0249 or above of the firmware")}</strong>
                 <div style="justify-content: center;display: flex;padding: 1rem;">
                     <img class="ui image" src="./static/download/firmware.png" style="height:100px;" />
                 </div>