Pre-requisites:
I have only tested this on a Retail Moto G with an unlocked bootloader, however as these are the stock signed image files from Motorola it 'should' work on any device.
I bought the US Retail version, and I had to unlock the bootloader (otherwise it didn't let me flash boot and others).
I followed the official unlocking procedure from the Motorola website:
motorola-global-portal.custhelp.com/app/standalone/bootloader/unlock-your-device-a/action/auth
After that, I was able to flash the UK Retail version following the steps from this thread.
---------- Post added at 03:39 PM ---------- Previous post was at 03:23 PM ----------
After that, I was able to flash the UK Retail version following the steps from this thread.
Now, what will happen with OTA updates?
Will they revert my phone to the native US Retail version?
Will I get OTA updates at all (like Android 4.4)?
In case you wonder why I switched from US Retail to UK Retail, that's needed to get Italian as optional system language, since the US version only has four languages.