Need to unroot a sprint cdma hero to original stock

[Mindreeze]

Hey guys i need to unroot a sprint hero to the original stock but i dont know how the phones was given to me with the leaked 2.1 sprint ruu im willing to learn to do it if someone can just show me how cause i saw all the forums and no such luck finding anything relevant to what im looking for:d

 

[Doomstang]

The stock RUU and information on it can be found here:
Download: RUU_Hero_C_Sprint_1.56.651.2 signed release.exe Geek For Me – Android CDMA Sprint Hero

 

[Kelmar]

The stock RUU and information no it can be found here:
Download: RUU_Hero_C_Sprint_1.56.651.2 signed release.exe Geek For Me

 

[Jero]

I was under the impression that this would not work bc of the new hboot?

You'd be correct.

It didnt work when I tried it earlier today...

 

[Doomstang]

You'd be correct.

It didnt work when I tried it earlier today...

Ah crap I forgot about that! -thinks-

 

[lopezpm]

Try this. This has worked for me. DFbonney is a genius and very helpful.
110 Error RUU 1.56 Fix - 100% unroot too! - xda-developers
I used the info from the first post to get me back to a working phone. After screwing it up with the RUU.
Now when ever i need to take the phone to Sprint I use the "100% Stock Configuration Work Around".
Its in the second post. It uses a nandroid backup from a freshly rooted phone and the original recovery image. So you restore that nandroid then you flash the original recovery image. Back to Stock.