Update DAPLink error message

latest-revision/latest-revision-main.md

@@ -187,7 +187,7 @@ A hex file that enables all micro:bit Bluetooth services is available to use for
 
 Yes, however you will need to update the files by dragging and dropping them into the software editor in which they were created.
 
-If you attempt to use an old .hex file without updating it, the micro:bit will display a compatibility error eg. `:( 029`
+If you attempt to use an old .hex file without updating it, the micro:bit will display a compatibility error eg. `:( 529`
 
 ![Compatibility error](/docs/software/assets/compat-error.gif)
 
@@ -206,4 +206,4 @@ Our [DAL, Devices and Editors mailing list](http://eepurl.com/dyRx-v) provides u
 
 Any questions or issues should be reported via [micro:bit support](https://support.microbit.org/support/tickets/new).
 
-You can also report issues on the relevant Github Repositories.
+You can also report issues on the relevant Github Repositories.