If you still own the Yezz Billy 4.7, you're now free to install Windows 10 Mobile Insider Preview builds on it. The Windows Device Recovery Tool was recently updated to support the device.
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Microsoft has rolled out its latest update to the Windows Device Recovery Tool, bumping it up to version 3.7.18601 with support for four more handsets, including the VAIO Phone Biz and the NuAns NEO.
Yezz said last week that all of its Windows handsets would get Windows 10 Mobile, but it now says its Billy 4 won't get the upgrade as it has just 4GB of storage - even though the OS supports that.
From Microsoft's DVD-saster and Rockstar's "bollocks", to buggy fruit, Android delights, a Dislike for Facebook, and Snapchat's pay-to-replay, it's our regular roundup of the week's top tech news.
Yezz, which has launched three Windows Phones in the last year, confirmed that it will upgrade those devices to Microsoft's latest OS this fall, with new Windows 10 Mobile handsets on the way.
Yezz Mobile has announced its latest Windows Phone 8.1 smartphone, the Yezz Billy 5S LTE, with decent mid-range specifications at the CES 2015 trade show in Las Vegas.
One of the many new manufacturers to sign up to Windows Phone will formally launch what it claims is the world's "slimmest and lightest" handset running Microsoft's mobile OS at IFA this week.
Microsoft revealed a number of handsets on the way from its Windows Phone partners today, including the oddly named Yezz Billy 4.7, which is just 7.2mm-thick, and some very colourful phones from Blu.