If I wanted to SBF my Droid 2 back to stock, which version of RSD Lite should I use? I've heard of 4.7 patched, 4.8 and 4.9. And I've also heard that you need to copy over an .ini file before you SBF. Which version is better? Do you need to copy over an .ini on 4.8 and 4.9?