Unrooting

[eric002]

Here's the thread I point everyone to - it is pretty detailed, (and has more than what you need). It is basically instructions on how to get back to complete stock. Wipes your phone clean - again, you don't want that, so read the notes below the link
[TUTORIAL][GUIDE][HOW TO] Flash Factory Imag… | Nexus 6 | XDA Forums

Here's what I'd suggest. Read the first & second post at the link above. Read it one more time

Now, a few things to know.

• In Step 5, method 1 doesn't work with Lollipop releases. It is expected to be fixed in Android 6. So if you are trying to do this now, use Method 2 (If you use Method 1, your phone will be wiped clean, so don't use Method 1)
• Since you only rooted and didn't mess with any other partition (is that true?), you don't need to run most of the commands in Step 5/Method 2 - all you need is the "fastboot flash system ....." command. (I usually flash the cache partition too - it is not needed, but I've heard of instances where you end up having to flash the cache partition as well - doesn't hurt, takes a couple of seconds)
• Do NOT run the "fastboot flash userdata...." command - that will wipe your data out completely.
• One of the final steps in that first post is to "Wipe Data/Factory data reset" - don't do that unless you want to wipe your phone
• After connecting your phone to your computer (before running any command), I always run a "fastboot devices" command in the command prompt. It should immediately return a long alphanumeric string (that identifies your phone). If you don't get a response, either your cable is bad, or fastboot isn't working right, or your phone is not in bootloader mode - don't proceed - nothing will work. see [noob-read] adb and fastboot. What is it? Ho… | Nexus 6 | XDA Forums
  

Ok thanks for that link. I'll have to read it later and of course if I have any questions I'll ask but thank you again.

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