Hi, I've got Nokia Lumia 520 with Windows Phone 8
before yesterday Microsoft update appeared on display and wanted me to instal. So I clicked on "instal" button and after that there was "restarting..." on the display for a while and phone went off. Since that I can't turn on my phone. I tried keep it on charger for a long time, I tried take off battery for a long time, I tried to hold all buttons combinations, but my phone is still dead. Do you have some advises or there is only one option to send that to Nokia for service?
Thank you for answers
First try rebooting by ressing and holding the vol down + power button for around 10 seconds. If it works, the phone should vibrate and restart. If this does not work you could try hard resetting, instructions as per link below. Faiuling that, you will need to get it to your local Nokia Care Point.