[boredandtattooed]

i always just went to settings>system>about>device ID and renamed it what it was before... never gave me issues..

and ummm, you flashed a ROM, what did you expect to happen to your info???? if you dont do backups, you lose the info stored on the phone...

and as long as when you sync you have "folders" checked, even when it deletes it from the desktop, that folder is stored in c: under "user">documents folders... so it shouldnt be lost either... your contacts, well if you use outlook, theyre still in outlook as well