Generally to restart your phone, simply press and hold the Volume Down button and the Power button for 10-12 seconds, until you feel the phone vibrate. This should restart your phone without deleting any of your data or apps.
Nokia Lumia 720 dead. Cant turn on. screen all blank.
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Anonymous
Help! My dad's nokia lumia 720 turned off unexpectedly after charging it. After it got to full charge i unplugged it and left it on the table. When my dad went to use it it didnt respond: the screen remained black een after pressing the lock button. We even tried a soft reset but then we worked out that it wasnt even on and it was dead. We couldnt turn it on either.... After that i plugged the phone into my pc and used the windows phone app to check status of the phone. it showed that it was charging! I thought that the phones couldnt charge when they are off! Anyway, there are no lights coming of the windows key, the back key or the search key....Please Help!!
Windows for home | Other | Devices and drivers
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Anonymous
Answer accepted by question author
Anonymous
Hi 413x4nd3r H03k!
Thank you for writing on the Windows Phone 8 forum.
If I have understood the issue after you put on charge your Lumia 710 it hasn’t worked any more.
Are you sure your phone has been charged. It is behaving like the battery is totally discharged.
If you keep having the same problem tough you have left the phone on charge for several hours I would suggest you to try the steps which are described on the following link.
http://support.microsoft.com/kb/2749480/en-us
Goodbye, Salvatore S.
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Anonymous
2018-06-06T11:33:48+00:00 neylabhm did you try pressing and holding down the power button for 20-30 seconds? Possibly the phone is still on but with a dark screen so it appears off, yet it is not. This will force a restart. You should feel a vibration when a restart begins..
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Anonymous
2018-06-05T17:47:30+00:00 The phone turned off while my son was playing a game on my Lumia 920. I tried to charge it, but it did not charge—and it's not even showing Nokia Logo. It shows nothing—just like a dead phone. I tried both hard and soft resets, but nothing works.
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Anonymous
2018-02-21T22:18:26+00:00 You can get replacements on eBay if you can do it yourself. You might be better off getting a replacement if you can't do it yourself.