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I successfully downloaded Android 4.4 KitKat (see screen shot):

Downloading proccess

And after downloading do not appear "restart/install" button, appear "Verification failed" error (see screen shot):

after_downloading

(click the images for larger variants)

If I click "Check now" button it begin redownload update Android 4.4 kitkat again.

Does anybody know where the problem is, and how it could be solved?

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  • Few people have experienced the same issue over at XDA and Android Central. It generally works after a day or two (couple of them reported at xda). If you really want the update, sideload the update. It is easier to sideload the update (no need to unlock bootloader).
    – k1chy
    Dec 11, 2013 at 4:54

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Is your Nexus 4 100% stock? (i.e. no Xposed module changes, or low-level tweaks like status bar mods and DPI changes).

Verification will fail if the system files on your device don't match factory/the expected ones. I had this happen to me several times with both my N4 and N5. Reverting the changes I made (thankfully, they weren't too many) fixed it.

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  • Thanks @Infinitesimus you are right, but in my situation the other problem was, when goes verification was slow internet speed then appear fail message. Then I connected my device to stable high speed internet and problem disappeared.
    – SBotirov
    Mar 9, 2014 at 7:53
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You can use the Nexus Factory Images to upgrade your phone to Android 4.4 (now 4.4.2). To do this have a look at this question.

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