Board Thread:Question and Answer/@comment-27251607-20160311162217/@comment-25435121-20160311213610

None of your personal account information is stored on the device. Anytime you personal account information is needed, it it fetched from the server, with some of it cached in memory (like your item stock). All your cards an unit configs are requested from the server every time.

If your device is broken, you'll need to contact MyNet to have them re-link your personal account with the new device. They will ask some information from you about your account that hopefully you have handy. If not, then your data may be lost. see also Account Transfer