Microsoft curated a specific list of devices that could upgrade, primarily focusing on Lumia models and a few third-party phones. The list included:
: Some community repositories provide the .appxbundle file for the Upgrade Advisor, which requires putting the phone into Developer Mode to sideload.
Since the standard app-based method is defunct, users looking to update legacy hardware must rely on PC-based tools or unofficial community workarounds: YouTube·Random Repairshttps://www.youtube.com
To help you get your classic device up and running, let me know: What of Windows Phone do you have? What operating system version is it currently running? Do you have access to a Windows PC to perform the upgrade?
Windows 10 Mobile Upgrade Advisor App Download Free: Is It Still Possible?
It automatically scanned your device to confirm if it was on the official list, which included favorites like the Lumia 640 , 930 , and 1520 .