4.4 update on nexus 7(2012),build krt16s giving huge problems. Pls help

[Sahil Chhabra]

Just got ota update on my nexus 7(2012). Build Krt16s
After updating its giving me huge problems.. Device hangs like anything and battery is running out much too quickly
Its making my device almost unusable cuz of all the hanging and lagging
I have never rooted or flashed or anything as i dnt have the knowledge about all this at all. Its simple asus nexus 7(2012)
I dn knw what to do pls help

 

[patruns]

If it is really that bad do a factory reset.

 

[24c]

If it is really that bad do a factory reset.

Does a factory reset return the tablet to the original OS, or does it retain the Kit Kat 4.4 ? TIA

 

[patruns]

It should retain Kit Kat

 

[Sahil Chhabra]

I shall do a reset Nd post the results,and if after reset this lagging and hanging does not resolves than is there any way i could go back to android 4.3 ..if yes than pls let me know as i do not have much knowledge about rooting or flashing..