It is possible to know ...

It is possible to know if a nokia 8210 is ROM 5 or ROM 6 without connect any cable? I want to buy one in internet, and I don´t want to buy a ROM 5.
I have heard that if you see the version in the phone "V 05.31" is ROM 6 and if you see "V 5.31" is ROM 5, it is true?

thx.

Im not 100% sure but as far as I can remember it refers to the vertion..under 5.27 it is rom 5 ....You can foud it by pressing *#0000#
But Im not sure....
Regards!
Sergo_Zmeia