No post editor tool bar nor Visual tab

The wp-config.php file is usually located at the root of your WordPress installation.

Before you consider editing that file have you looked over the 3.5 Master List and see if any of that applies to you installation?

https://www.ads-software.com/support/topic/troubleshooting-wordpress-35-master-list?replies=4

Particularly you should check to see if you’re having javascript issues by enabling the js console on your browser.

https://codex.www.ads-software.com/Using_Your_Browser_to_Diagnose_JavaScript_Errors

If you can confirm that first then you may want to try adding that line to your wp-config.php file.

good call, i found this error in the javascript : Uncaught TypeError: Cannot call method ‘add’ of undefined.

How do i add that line to your wp-config.php file?

thanks!

actually the console mentions the following file : post.php:1266 next to the error description

hope this is not confusing

i’ve managed to find the wp-config file and solve the issue thanks to your help and other threads like this one :
https://www.ads-software.com/support/topic/upgraded-to-35-now-cannot-format-text-in-any-posts?replies=14#post-3674450

thanks a mil!