So let us check step-by-step how to upgrade your Windows Phone 8.1 device to Windows 10 Mobile.
Microsoft has released a list of Windows Phone 8.1 devices that are supported for the upgrade.
Let's get the issue sorted out as quickly as possible.
For all One Drive mobile sync, sharing, and upload issues, make sure you can connect to the Internet.
The Windows 10 Mobile Upgrade Advisor app helps you find out if your Windows Phone 8.1 phone is eligible to install the upgrade to Windows 10 Mobile.
It can also help free up space on your phone so you’re ready to install the upgrade.
The author has been a Microsoft MVP awardee in various Windows categories (2006-2016) and currently a Windows Insider MVP.
This app is similar to ‘Get Windows 10’ app for PCs and checks eligibility of your device and enables the upgrade.I gave up on Windows Phone almost a year ago, citing a lack of apps and Microsoft's mobile platform getting left behind.While the app gap has always been a problem, Windows Phone is now five years old and it's still facing new challenges.The availability of Windows 10 Mobile as an upgrade for existing Windows Phone 8.1 devices will vary by device manufacturer, device model, country or region, mobile operator or service provider, hardware limitations, and other factors.Microsoft Lumia Support has also released a video showing how to upgrade to Windows 10 Mobile.So first, one should check this if your device is included in the list.The current list of Windows Phone 8.1 devices that can upgrade to Windows 10 includes: Lumia 1520, 930, 640, 640XL, 730, 735, 830, 532, 535, 540, 635 1GB, 636 1GB, 638 1GB, 430, 435, BLU Win HD w510u, BLU Win HD LTE x150q, MCJ Madosma Q501 If your device is in the list, proceed to next step.Note: This delay can be longer if facial recognition and location data are included in your photos.Uploading may also be slower if your internet connection prioritizes downloads over uploads.A file won't upload if it doesn't fit in your available One Drive storage space.To see how much space you have remaining or get more storage, tap Menu then tap the i next to your account name to see your total storage and space available. Use One Drive on Windows phone Find lost or missing files in One Drive Fix problems uploading files on the One Drive website More fixes for recent One Drive issues In a One Drive mobile app, shake the device to get help or share feedback, or get help by emailing the One Drive support team.