Why does my Lumia 525 have a black screen after upgrading to Windows 10?

[zubin sadadiwala]

lumia 525 blak screen after upgrading to windows 10

I have lumia 525 and i recently tried to upgrade to windows 10 using windows insider. now after installation my phone is not working. when i unlock the phone, blank screen is coming and when i tried to open setting from notification, it is also not getting opened.