Sorry my mistake. Let me rephrase.
I have skip 4th step as I can not make website down for time till I download updated files.
Instead of this I changed siteurl and home options_value in wp_options, wp_options1 table.
And I did not run search & replace on the wp_posts table.
I don't get wordpress admin panel too so can't run first two options.
I didn't try 4th as it is written there (** only use this option if you are comfortable with database administration ** )
but i can try those options now if they can solve problem.
Thanks.