The new ones are in colour, mine is old and in black and white, the battery flashing is either needing charge or charged, when charging it is same as a phone the battery bar goes up and down.
to access the info you need re the data used etc. In your browser window type 192.168.1.1 (whilst your mifi is switched on) this will take you to the login screen type admin and password admin choose English.
This is the YouTube video instructions, the best one that I could find, it is for 3store but exactly the same as Tukrcell (Get past openingoif the box, that bit is for Highlander

) the screen maybe a little different but I am sure you will be able to geet the gist of it.
https://www.youtube.com/watch?v=ZtoVjsobkP0