Migrating a wordpress website

Hi,

I developped a website on a host, and now i want to migrate it on another with a different hostname.
So first i exported the db, i imported it on the new host. I copied and past the files. I have change my wp-config.php file.
And now if i go on my new address i just get redirected on my old one i don’t anderstand why.
I tried to edit my siteurl and home fields in my database but it doesn’t work and i really don’t know where it can coming from right now …

If someone got an idea…

PS: Sry for my english which is not perfect at all if you need precisions tell it to mee.