Nexus 7 not booting - Nexus 7 Q&A, Help & Troubleshooting

Hi
while browsing the tablet, suddenly it had turned off, and the four colourful dots have started flying on the screen.
I had turned off the tablet by pressing the power button for more than 15 secs, it entered into the set up mode, from there I had opted for starting the tablet, but still the four colourful dots are flying. had tried up this again and again, but the same thing happens...please help !!
thanks.

Flash factory image through fastboot, this guide will help with that
http://forum.xda-developers.com/showthread.php?t=2277112
And factory images can be found at
https://developers.google.com/android/nexus/images

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Stuck on fastboot screen

I've had my tablet going on 3 years with never a problem...last night I was using it at work, went to text on it with the Swype keyboard and it totally froze. I waited for about 2 minutes to see if it would just release the freeze but it didn't. I held the power button to just do a reboot and it stuck on the Acer screen. After playing around with it a few minutes I got the android screen up, but it froze there. I've done the hard factory reboot, then tried the Power>Vol - > and rotate toggle...now my screen is stuck on "Bootloader v0.0312-ICS: Starting Fastboot USB download protocol"
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thanx

[Q] turning screen off crashes phone

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I installed AVG antivirus, to see if maybe there was malware on my phone. Scans showed nothing. I updated all of the software as well. I now have an app installed for turning off the phone instead of using the power button. This of course is not an ideal situtation, why should pressing the power button crash my phone like this??

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Even then when I press the power button it turn on, shows the loading screen and the screen goes black.
When I do this for seven times then the factory reset screen appears but when i select the factory reset it just gets stuck there and nothing happens. I left it there once for over an hour to see if something happens but without any luck.
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http:||imgur.com/57mChOM
Have you checked ADB is working or not. Try with nexus root toolkit, it may help you out.

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Hi Community,
I had to reset my oneplus 5 because of a annoying adware that i might have got from something was experiencing ad pop ups even on the home screen. So i did a factory reset from setting. My phone restarted and the boot screen appeared. After one or two mins both white dots of bootlogo merged and big red logo appeared (device was about to go to setup page) but instead of going to setup screen a black screen appeared and again bootlogo started rolling... i thought its a reset process but it just on for a long time, around 20 mins. So i restarted the device by holding power button and phone restarted to the setup screen in no time.
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Please help

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