I cannot install new themes

Because I see this message, when I upload new theme’s zip: Unable to create directory wp-content/uploads/2014/01. Is its parent directory writable by the server?

I know, this is the 43433434th time that this question is asked but I have not found solution by googling.

What I have done:

1) I have changed the numbers of permissions in wp-content and in uploads from 755 to 775 and 777. Uploads folder in wp-content did not exist, so I created manually.

2) Using phpMyAdmin, I went in my database and in wp_options, I saw that upload path was empty in options_value, so I entered: wp-content/uploads

Nothing changed. I cannot install theme with uploading its zip and the same message every time: Unable to create directory wp-content/uploads/2014/01. Is its parent directory writable by the server?

And in Settings – Media, I cannot find the “Store uploads in this folder” text box to put “wp-content/uploads” because it does not exist in wordpress 3.8.

Any help?