When trying to recover my Lumia 820 from unsuccessful OS upgrade, phone went completely dead.

I was not able to turn it on or see any sign of activity in the device (boot manager damage happened probably).

At that stage I decided to look for tool which can recover my boot manager and then OS on Lumia.

Tool I found is available on Microsoft web site:

• Windows Phone Recovery Tool – http://go.microsoft.com/fwlink/?LinkID=525569

…and here is how it recovered my phone…

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When I tried to install Technical Preview of Windows 10 on my Nokia Lumia 820, I ended up with phone which went into infinite loop of updating.

As a result of that phone became unusable and there was no way to bring it back to life without any additional intervention.

To get phone back to life I used fostware available for free from Microsoft:

• Lumia Software Recovery Tool – http://go.microsoft.com/fwlink/?LinkID=525568

…and here is how that went…

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