You need BOTH a login ID and a valid license key to use MobileTrans fully. The login ID manages your account; the license key unlocks the software features.
Some older versions (v12 and below) allow offline use with just a license key. However, new installations of v13+ require a one-time login to verify your subscription. wondershare mobiletrans login id and password
Using the wrong email address or signing up with a social login (Google/Facebook) instead of email. Solution: You need BOTH a login ID and a