HTC One max - Email

Messages Back up your text messages to the storage on the phone, or
save them as an email attachment.
Contacts § Save contacts and other personal data to your online
accounts so you can just sync them when switching to
another phone.
§ If you have locally stored contacts in the People app,
export them to the storage on the phone.
Files § Manually copy and paste files by connecting HTC One max
to your computer as a disk drive.
§ Upload files to online storage and services.
Other data § If you added new words to your personal dictionary in the
onscreen keyboard, back up the dictionary to the storage
or save it as an email attachment.
§ Check the other apps to see if they support exporting data
to the storage.
Backing up your data locally
If you want to separately back up your content such as contacts and text
messages on
HTC One max, here are some tips on how to export or import
your data.
Backing up your contacts
1. Open the People app.
2. On the People tab, tap
> Manage contacts.
212 Sync, backup, and reset