Well I did 2 fdr's. The first one I did I let my apps install back on with their settings in tact. Phone still did not achieve great battery times as it did on Gb and was laggy, so the I did another fdr with a fresh install off my apps with no backed up setting. That was the trick in my case. Fresh new everything and my phone took OFF! It is fantastic now. Just a suggestion for you and others, I found the fdr with fresh install of everything to be the key. It is a pain and it took me several hours to get my phone back to the way it was but it made a HUGE difference in how my phone acts now. I'm very pleased. Trial and error is the key. Take the time as painful as it may be and see what works best for your phone.