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I recently was messing around with my Nexus 7 tablet and erased everything on it. The only two things I can do now is turn it on and see an android man stand there forever or hold the power + volume up button to get to the recovery menu, which none of the options fix the tablet.

Is there a way I can re-install the android operating system onto my tablet?

I have only found articles that mention how to install the software if I have access to my directory file on the tablet it self.

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Did you unlock your bootloader before rooting? I assume so just wondering. What recovery did you install Clockwork Mod Recovery? – ZnewmaN Feb 19 '13 at 22:40
@ZnewmaN protip Do not assume ;) The OP has made no mention of custom recovery nor rooted/bootloader unlocked :) – t0mm13b Feb 19 '13 at 23:55
@t0mm13b true, but nexus devices in order to screw them up you basically have to unlock the bootloader. It is possible to flash a rom without root via tools introduced with the newest version of ADB, but it is much easier to do with a custom recovery. – ZnewmaN Feb 20 '13 at 2:47
Try with WugFresh's root kit. It has a menu option to unlock the bootloader (if not done), flash system image, root etc. You can download latest factory image from Google's developer page. – Narayanan Feb 20 '13 at 9:22
I'm not exactly sure if the bootloader was unlocked, I got it used. My guessing is that it probably was unlocked bootloader because I could access that screen every time an update was available. – user2088926 Feb 26 '13 at 22:13

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