I apologize that I missed your request. This is a simple procedure that has no risk if done correctly and made a noticeable difference in battery life after I flashed the 902 update.
1. Start with phone powered off.
2. Boot into menu by holding down both volume+ and volume- and pressing power at the same time.
3. use volume down to highlight "recovery" and press volume+ to select.
4. When you see the triangle with the exclamation point and the little android press both volume+ and volume- again.
5. press volume- to highlight wipe cache partition
6. press power to select
7. "reboot system now" should be highlighted now. Press power to select.
That's all there is to it. It doesn't take very long, and worked for me. I hope it will help some of you.
While this is a simple and very low risk procedure, do this at your own risk. If something goes wrong, I won't be responsible.