Strange touch problem after upgrading my lg g2 topic

Hello Experts,

I am facing quite odd problem, please help me.

I have LG G2 D802. My software version was d80220b while when I attached my mobile with pc, pc suite notify me that d80220c is available. I upgraded. But after upgrading, touch is totally out of work. Say like below, I tap "7" & it goes to 2, 3 etc. I select say first option, it selects 4th option.

Also, one more thing, my mobile is 32gb variant, while now it's showing only 10.8gb

1 2 3
4 5 6
7 8 9
a b c

I think it's due to some rom issue, can you please guide me or send me link for the correct ROM for my mobile?

Waiting anxiously

Thanks