Nexus 7 not booting - how to do a factory reset?

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http://forums.androidcentral.com – Hi All, Not sure what I did wrong, but I had my Nexus 7 charging today morning and now all I see is the 'X' boot logo. It is not going past that. I did boot into the bootloader and chose 'Recovery Mode' to do a factory reset. I did go into recovery mode and get the droid with the red error icon with a text 'No Command' - After that I tried all possible commands - vol up + power, vol down + power , press vol up twice, press vol down twice - nothing happens :( - How do I boot into recovery? [This is not rooted. Just stock recovery] Any help would be much appreciated! Thanks, Chak (HowTos)