My Lumia 520 fail to boot operating system and also fail to Hard reset. How can I solve this?

[WPCentral Question]

My Lumia 520 fail to boot operating system and also fail to Hard reset.

It shows after power :ERROR: failure to find a bootable option. Press any key to shut down. But no key is seen.

how i will solve this problem.

 

[Czesky]

Re: My Lumia 520 fail to boot operating system and also fail to Hard reset.

Get Lumia Recorvery Tool nor Windows Phone Recorvery Tool and plug in your phone. Download the update and it will automatically install on your phone. Should work.