Help Can't Upgrade

I’m trying to upgrade 7.5.3 to 7.7.9. Passes system check. Shows upload progress up zip file as 17% and then just gets stuck. (I have 20mbit upload speed and file is only 10MB). 10 minutes later still says 17%. Suite then becomes unresponsive if I cancel and I have to restart Apache.

Folders ownership is fine and I even to be sure on permissions ran:

chmod -R 775 cache custom modules themes data upload config_override.php

File upload size limit in config.php and php.ini is 30MB/32MB. PHP version 5.6.3.

What next?

I found how to load the patch manually and that worked.