Dialer Apps crash after a few seconds, 4.4, almost new phone, no modifications
If you can, try to go to Settings -&gt; Applications -&gt; All
applications and find your Dialer app (usually called dialer). Then
delete data and reboot your phone. That should fix issues coming
directly from the dialer app itself.
If other applications like
Contacts or Messages (Hangouts) crash then some databases inside
your phone (eg. contacts.db) are corrupt or have wrong permissions
associated with them.


Rooting and then fixing permissions manually may solve the problem if the first option didn't do it.