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
2016-01-06T13:38:12+00:00 True, Nothing works. no option remains. Hope core team is listening and enjoying the feedback .
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Anonymous
2016-01-06T13:36:37+00:00 Seems , Core team running out of fixes/idea as they don't know what's going wrong. OS design problem for sure. Please think of buying android and forget this investments as some charity .
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Anonymous
2016-01-06T13:33:52+00:00 I'm trying to respond to a very old thread but thought of reminding the core team that they haven't done a good job and one of the main reason why they lost the competition. Seriously they need to gear up to retain few customers or try selling Android phones which are way better than your phones.
still my phone goes blank & getting struck now & then even if fully charges. tried all these silly looking( press buttons in peculiar sequence) solution but none of the solution mentioned above works on Lumia 720. It irritates.
I hesitate to get it to Nokia care as they charge unnecessarily high. Took bad decision , so paying for it