Installing UK Firmware on a Spanish Surface 2...how to??

[nemov888]

Hi Guys,

I bought my Surface 2 last year from Spain...and it has the Spanish version of Windows RT installed. It's usable, because I changed the display language to English, but I really just want to do a fresh install of the UK firmware. But when I look on the Microsoft website it seems to give no info about how to do this....only says about how to install manually the firmware for the Surface Pro 3. Does anyone know where I can get the OS from / how to install it from a USB stick?

Thanks in advance for your help!