Microsoft has released Windows 10 Mobile Insider Preview Build 10512 today for Fast Track users. I am currently downloading the update on my device. But

Windows 10 Mobile Build 10512 is now live: here’s all you need to know

Posted by

Microsoft has released Windows 10 Mobile Insider Preview Build 10512 today for Fast Track users. I am currently downloading the update on my device. But just so you don’t get any surprises, here is a list of all the new stuff and the issues that you will run into on this build.

W10M 1051

Here are the improvements that come with this build:

– Improvements to built in apps
– General improvement in overall stability and performance.
– You can now set the Lock screen and background image from within the Photos app.
– The issue where apps installed on SD cards weren’t working after a reboot is now fixed.
– Improvements to Latvian and Chinese inputs.
– Improvements to the Kid’s Corner tile layout.
– Improved reliability of Data Sense notifications.
– Modified Shape Writing algorithm to be less aggressive in suggesting contact names over common words.
– Resolved an issue where Camera would not launch when the phone was locked.
– An issue where notifications for incoming text messages weren’t appearing is fixed.
– An issue where the touch screen wouldn’t be responsive after ending a phone call on some devices now fixed.
– An issue where folder tiles have obviously overlapping text is now fixed.

And here are the known issues for this build:

– Mobile hotspot doesn’t work in this build, so stay away if that is essential for you.
– Two-factor authentication for your MSA with a phone number doesn’t work in this build. If you reset your phone and go through the first run experience, you won’t be able to input more than 2 characters for validating phone or text authentication. If you have a secondary email for two-factor authentication – you can choose that. As a workaround, add secondary email for two-factor authentication.
– Some phones might spend a long time in the post update migration experience – just let the phone sit and it should complete this migration.
– Apps that use background audio such as Groove, Podcast, Pandora, etc. will crash when launching after receiving an app update from the Store. Rebooting the device will resolve this issue.
– Some phones with a large number of tiles pinned to the Start screen may get stuck in a state where the device shows “Loading…”; the device will need to be reset or rolled back to Windows Phone 8.1 using Windows Phone Recovery Tool. To avoid this, you may need to reduce the number of tiles on the Start screen.
– Some apps may fail to update through the Store with the error code 0x80073cf9; uninstalling the application and reinstalling it will resolve this issue.
– The Movies & TV app will not work in this build (video playback is currently broken).

Now you know. If you are on the Fast Track of the Insider programme and want in on this build, go check for your update on your device.


  1. My dear Mr MO, thank you for this information, but as we discussed earlier, I am not going near this update for now. whether fast track or slow track, I am not ready to have hyperstroke at this young age.
    thank you.

Leave a Reply

Your email address will not be published. Required fields are marked *