This is basically what I did:
1. Backed up my device. Though you won't be needing to restore from backup it's always a good idea to create a backup just in case something goes wrong. 99% chance you won't be needing to use it.
http://support.apple.com/kb/HT1766
Also I turned off findmyipad, for you that would be findmyiphone. Make sure your contacts are backed up somewhere because it would suck to lose those, I have mine synced with Google.
2. Go to Settings > General > Reset, then tap Erase All Content and Settings.
3. Go through the setup process, do not restore from the backup you made but be sure to sign into your iCloud account. Hopefully from here you can install the apps you need from the screenshots you've taken and go through your settings to configure everything to where you want it.
Hi again,
After upgrading to 7.1.2 I did the above and am still seeing battery drain (and usage/standby times are the same)
Here are my steps, started early evening...
[1] backup up iphone - did both icloud and local
[2] backed up camera roll
[3] turned off Find my Iphone
[4] Settings > General > Reset, then tap Erase All Content and Settings
[5] set up as new iphone
[6] during the setup I logged into Icloud
i.e. stayed away from any backup.
I installed a few critical apps, synched back my photos and music via itunes.
I'm still seeing the battery drain even after leaving the phone charged overnight.
Is it worth redoing but not installing any app ? is there anything else I can do ?
Thanks in advance