I got the same error 83cf1104 after i did a hard reset, it drove me crazy but finally i got it work,
after many account removes and re-adding, another hard reset, what made it sync all my contacts was,
add your facebook account the normal way,
go to messaging and into settings turn off "use facebook chat"
go into People, then settings scroll down to the bottom, press and hold your facebook account and press sync,
for some reason it works there and not in the accounts section,
once thats complete go back to messaging and turn on "use facebook chat"
and its back to normal