In my previous post I linked from the Microsoft press-release all the new features that are being made available with the Windows Phone 8 GDR 3 Update. One of the interesting pieces of information was that Microsoft was making the update available for developers now. To participate and download Windows Phone 8 Update 3, you need to meet one of three conditions: your phone is “developer-unlocked,” you’re a registered Windows Phone Store developer, or you’re a registered Windows Phone App Studio developer.
I obviously needed to get the update running on my phone (Nokia Lumia 925). I realized that there was no going back once the update is installed as well as no manufacturer and carrier support once this is upgraded. Please make note of this before you attempt the update.
So, to get back to updating. One of the options above is to be registered as a Windows Phone App Studio developer. To do so, visit http://apps.windowsstore.com/ and sign in with your Microsoft account. Once signed in, you will see a page like this.
Click on a template and select create app. Go through the creation process, hit the next button at the bottom till you reach “Step 4”. At this point you should see a page that looks like this.
Now create on generate app and go grab a cup of coffee while this completes. Your page should look like this at this point.
Now that you are back, you should see a page that looks like this.
Click on the “install the certificate” link first. You will see a pop-up with a QR code. Whip out your Windows Phone 8 device, click on the search button and click on the eye button on the bing screen. You should be able to click on the link from the QR code. When prompted to install, go ahead and install.
Next, scan the QR code for the app that you see on the screen for the app and follow the link and install the app.
You phone should now be ready to accept the preview app. On you phone, go to Windows Phone Store and install the app.
Once the app is installed, you should be able to go to the app and sign-up for the preview. You will get a notification that your phone is registered for update 3. Go to setting and phone updates and check for updates. You should be on your way to install the update. Only caveat is that you will need access to Wi-Fi to download and install the update.
PLEASE NOTE: All steps above is what I followed, I provide no guarantees if it does not work for you. Bottom line is do this at your own risk.