Update:
Not so good news here. Nokia Developer account said Preview for developers update doesn’t void warranty initially, but Nokia care said it will. So, we reached to both of them to sort this out and seems it can void any warranty and the Windows Phone Preview for Developers documentation has it all mentioned. But, that my be small price to pay for an enthusiast.
@Nokiapoweruser Hi, you may check this link: http://t.co/p5mqpyKJmi for the warranty info after updating to Windows 8.1. ^SR
— Nokia Care (@NokiaHelps) April 15, 2014
Are you yet running Windows Phone 8.1 on your Lumia, if not then you may try our tutorial and don’t worry it is all the way “official enthusiast” update. For those worried about warranty, Nokia developer Twitter account has also confirmed that there is no impact on Phone’s warranty with this update.
@NokiaIndia @theandybaba if its the official developer preview than it will be valid.
— Nokia Developer Team (@nokiadeveloper) April 14, 2014
Now, time for taking care of queries about Cortana‘ availability outside of United States. You need to make small changes and you will see Cortana on your phone.
Step 1: Go and add English (United States) first in Settings —–> Language. You will need to reboot the device
Step 2: Change Region to United states and regional format as “match phone language” in Settings —–> RegionIt will ask for a restart and once rebooted, you should be able to see Cortana in list of apps and you are good to go.
Step 3: Now go to Settings—-> Speech and set English (United States) as the speech language. You should be able to access Cortana now by tapping on the search button.
Take a deep dive in the world of Windows Phone 8.1 & Cortana here!!