I have just updated wordpress 3.8.1 to 4.4.1. Tried to update in various ways:
Before updating I have deactivated all the plugins and switched to the default theme provided by wordpress i.e. twentyfourteen.
Option 1: Update wordpress automatically. Files are updated successfully as I can the see the message. But it keeps loading with the message "Updating database .." (something like this) and database is not updated even waiting for an hour.
Option 2: Update manually: Copied files (wp-includes,wp-admin folders, and default files of the root, first deleted these then copied from latest version). Site works fine with the changed theme. While logging into the admin there is a message asking to udpate the database. However page keeps loading without any update in database. Now admin does not work at all. I can neither see the database update link nor admin dashboard, page keeps loading.
Has anyone gone through such issue?
Thank you for help.