If you have used the Avast Backup app to backup your contacts, you can go to old device in my.avast.com , open the contacts section and choose Restore and pick your new device in the select box.
Hi, I’m having the same problem: all my contacts are backed up in my.avast, but when I try to restore them to a device other than the one that generated them, It says theres no conection to it, which is not true since I can create new backups, find its location, etc etc. How can I get my backed up contacts un my phone again??