FortiTester default password

Hello,

Does anyone know the default password for FortiTester?

We had a FortiTester running some earlier version and the department responsible for the device was not used it some time. Login details are not known.

We formated the unit and uploaded the newest firmware version FTS_2000D-v300-build0113-FORTINET.out

According to the Handbook the default login is admin with no password.

Unfortunatelly this login does not work.

Is threre any possibility that formating the device do not delete the accounts and passwords from the device?

Should we do something more to have really clean unit?