wp-admin shows blank page, how to fix it?

Question

I am working with WordPress 3.5.8. Yesterday I made some changes into it to a friend. I don't know what happened, but after some time when I try to log in at wp-admin side and execute URL www.mysite.com/wp-admin it shows me a blank page. How do I solve this? I have searched over the internet and blogs. I found it could be related to hosting problems or brute force-attack, but I don't think that that's what happened to my site.

Links I visited:

• http://wordpress.org/support/topic/wp-admin-wont-load-shows-blank-page
• http://wordpress.org/support/topic/brute-force-attacks-and-wordpress?replies=1
• http://wordpress.org/support/topic/wp-admin-wont-load-shows-blank-page
• http://wordpress.org/support/topic/wp-admin-blank-page
• http://wordpress.org/support/topic/blank-page-on-wp-admin

Answer 1

Just reset the password, this will work.

Answer 2

I was also facing same problem but i renamed contact-form-7 plugin from /wp-content/plugins directory to contact-form-7-rename and problem solved.

So this is due to unsupportable plugins or theme.

Answer 3

I just had this and it was a file / directory ownership issue. Fixed via SSH and changing the ownership recursively (-R):

chown -R ownerID:groupID /home/mydirectory/website

Change ownerID, groupID and filepath to be relevant to your own situation.