I have just done the whole S-OFF and rooting of my HTC Desire S. But i really need to get it back to stock as it was, out of the box. It is on 2.3.3 firmware. The phone was a branded 3 phone, but was unlocked before all this happened. What RRU will i need to get it back to where it was or as a unbranded HTC? And how do i do it?