I hear its better to update through iTunes but i already did via ota. Now I want to able to go back to non jailbreak if I don't like it how would I be able to do that?
Just connect your phone to iTunes, make sure you make a backup, and hit the update
button. You'll be good to go.
In case iTunes gives you errors during the update, put the phone into recovery mode
and then hit update.
To put your into Device Firmware Update (DFU) mode:
1. Connect your iPhone to the computer and start iTunes.
2. Turn off your iPhone by holding down the Sleep button and slide to power off.
3. Press and hold down the Sleep button and Home button simultaneously.
4. After 10 seconds release the Sleep button but continue to hold the Home button down.
5. iTunes will pop up a window that says it has "detected an iPhone in recovery mode."