How do I unroot my Droid?

[KSChris]

I just bought a Thunderbolt, and am selling my OG Droid to a friend of mine. Does Verizon activate phones that are rooted?

My problem is two-fold, because I don't know if my friend wants the phone as is.. or what. Because I let him play with it today, and I think he seems to like it as is now, which will obviously be much better than stock since I'm running a custom ROM and overclocked. But I also don't think he even knows what rooting is or what it does, so he'd likely be clueless in re-rooting it.

Anyway.. I'm mainly just trying to find out how to un-root it incase Verizon doesn't activate rooted phones.

 

[.46caliber]

Don't take it to a store, but he can do it over the phone and it won't make a difference.

Just have him dial *228, option 1. Enter phone number, enter account password. I do this a couple times a week switching between my rooted and ROM'd Droid and rooted and ROM'd DX.