Microsoft has explained the release of Windows 10 with the build number 16212 released the day before, which caused the failure of mobile devices of users.
The thing is, this assembly was so testable that it was not intended for testing by the public as part of the Windows Insiders program. It can affect the stability of the PC and Microsoft recommends either wait and do not update, or, if the terrible one has already happened, roll back to the previous assembly through settings (Settings> Update & security> Recovery). Much worse was necessary for users of mobile devices – when installing the gadget goes into a cycle of uninterrupted reloads and, in fact, becomes useless. According to Microsoft, the only way to help here is to use the Windows Device Recovery Tool and flashing it.