after 4.3 update

[sp3457]

After updating to 4.3 my phone stuck everytime, sometimes it doesn't unlock, it's touch is not responding, and battery is draining faster than xperia c though they both have approx same battery. Why?

[Thommo]

The battery is probably because one has a better screen or a faster processor as for your issues try performing a system repair

[TheXperiaMAN]

Xperia C has a very inferior MediaTek processor and a low-res display vis-a-vis XSP's Qualcomm S4 Pro and HD Reality display.Obviously battery life will be affected.

But I get around 2-3 days on a single charge.I use DeepSleep Battery Saver Pro.

Just try it,it may work for you.