HT4623 iPhone 4 (2011) very sluggish and battery issues after upgrading to iOS 7

Hi,
I am experiencing crazy sluggishness in my GSM iPhone 4 (2011 model) after recently upgradig to iOS 7.0.2 from 6.1.3. Phone's freezing every few seconds and when it does, you can't do any activitiy, keyboard will not respond, videos will freeze etc.
Top of it, the battery is drying up like nuts. It used to work for more than 24 hrs with same settings earlier, now hardly 7-8 hrs !!! ..... I turned off everything like background-app refresh, wireless, 3G, bunch of other things, infact not even keeping any apps running in background while not using, I immediately kill it as soon as I am done using it.
Am very badly stuck, biggest mistake of my life that I ugpraded to iOS 7
- Is anyone experiencing similar issues ?
- Is there any way I can go back to previous version ... is Apple still signing iOS 6.1.3 ? I don't have shsh blob backup of previous version.
Any thought is greatly appreciated.
Thanks in advance,
Rajiv

rajivrp wrote:
Hi,
..Phone's freezing every few seconds .
Any thought is greatly appreciated.
Try This...
Close All Open Apps... Sign Out of your Account... Perform a Reset... Try again...
Reset ( No Data will be Lost )
Press and hold the Sleep/Wake button and the Home button at the same time for at least ten seconds, until the Apple logo appears. Release the Buttons.
http://support.apple.com/kb/ht1430
Also try a Reset all settings
Settings > General > Reset > Reset all Settings.
This will return all iDevice settings to factory defaults... you will not lose any data.... But you will have to re-enter all of the device settings.
If no joy...
1) Connect to iTunes on the computer you usually Sync with and Restore
http://support.apple.com/kb/HT1414
Make sure you have the Latest Version of iTunes (v11) Installed on your computer
iTunes free download from www.itunes.com/download
rajivrp wrote:
- Is there any way I can go back to previous version ...
Apple does Not Support Downgrading... Never has.

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HT4623 iPhone 4 (2011) very sluggish and battery issues after upgrading to iOS 7

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