Root Unrooting help..

[alchemize]

I tried searching the forums, but couldn't find anything actively helpful. All of the unroot methods I've seen thus far are outdated.

I've hit my two year upgrade mark and I'm moving up to bigger and better things. As we all know, verizon's trade in service is paying a nice amount for a droid eris. I would like to take advantage.

I rooted my phone last summer, maybe september. I am unaware of which ROM I have on there, not sure if that matters but just thought I'd clarify.

Can anyone help me with a current method of un-rooting my phone? I don't anticipate verizon doing a thorough investigation, but I'd rather be safe than sorry.

Many thanks in advance to anyone who can help me out.

 

[metlcat]

Flash the ROM in this thread like you would any other ROM and it will unroot your phone.

[ROM][10/20/2010]FlashBack21 v1 -Return to Factory Stock - UPDATED - xda-developers

 

[alchemize]

Thanks.

I actually saw that earlier, but scrolled down and read that it said obsolete. I was thinking that was an update stating the entire post was obsolete, not just the 1.5 rollback afterwards.