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Is there an easy way to un-root Android 2.2 on Droid X rooted via z4root?

The reason is that I would like to apply a Gingerbread 2.3 update from Verizon, and that update ALWAYS fails to install.

Since I never had a custom ROM on the phone, my first guess is that the problem may be due to being rooted, but I don't see an "Unroot" option in z4root.

Please note that factory reset is NOT an answer I'm looking for.

share|improve this question
How exactly is the update failing? Any error messages? The more information you provide - the easier it would be to diagnose and offer ideas. – Chahk Nov 18 '11 at 13:32
@Chahk - see… for details of the failed update (this question is specific to "how do I unroot", since it's quite possible that the update fails for a different reason, AND I'd like to learn how to unroot independently of update failure) – DVK Nov 18 '11 at 14:24
Out of curiosity: what version of z4root do you have? – eldarerathis Nov 18 '11 at 14:54
@eldarerathis - 1.1.0 z4root – DVK Nov 18 '11 at 15:18
Aha, the unroot button was added in v1.2.0. See my answer, maybe that will help. – eldarerathis Nov 18 '11 at 15:20
up vote 1 down vote accepted

z4root added an "Unroot" button in version 1.2. Version 1.3 added "force unroot" (not entirely sure what that means). You can grab the most recent version from the XDA thread, then you should be able to simply hit "Unroot" and be on your way.

share|improve this answer
Yep, that worked. Didn't solve my OTA problem though :( – DVK Nov 18 '11 at 17:04

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