I had my nexus 4 rooted , i have heard that rooted phone would not get updated over WIFI so i Factory Reset my phone , will it now get the update or not? no signe of update notification yet

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    A factory-reset does not unroot your device. – Izzy Nov 22 '14 at 21:07

If you have a rooted device, you most likely will not be able to install OTA updates (over the air). Factory resetting the device will not un-root the device so the best way of updating it is to do the following:

Get the factory image you wish to install (in your case, lollipop) from the Google developers website

Flash that image by following this tutorial or similar ones on the web.

  • AFAIK, rooting itself doesn't prevent OTA, at least that's what I experienced when updating from JB to KitKat. – Andrew T. Nov 23 '14 at 8:27
  • Hmm, that's different to what I found. The phone would say an update was available and I could download it and try to install it. The installation would fail and it would boot up to the version it had before with no changes. – winseybash Nov 23 '14 at 11:23
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    I could be wrong though. I flashed Lollipop since I didn't want to wait for OTA. Turned out I did what I should do without knowing it. Thanks for the info. – Andrew T. Nov 23 '14 at 11:45
  • Having read up on it I think it can vary with phone model. The Nexus range certainly will not accept OTA updated if they are rooted. – winseybash Nov 23 '14 at 11:53
  • Pre Android 5.0, I don't think being rooted will prevent the OTA installing by itself. The OTA will verify that the files in the /system partition is the same as it expects, so any modifications may cause the update to fail. I have applied updates prior to Android 5.0 on a rooted device and they have worked fine. As of Android 5.0 this seems to have changed as it appears to verify the whole partition rather than the files it's patching. I'm not sure if this applies to the update to 5.0 or just updates once on 5.0. – bmdixon Nov 24 '14 at 9:47

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