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Upgrading the Software with Keys

Posted: 19 Sep 2018, 13:09
by factoryosaru1985
Hi, mates!
I just updated my software for the first time during recent 8 years.
I got the newest Multiecuscan and installed it onto my same PC on which I had done FiatECUSCan 3.03 in 2010.
I found the new one couldn''t be unlocked automatically.
It said different hardware key from one of old one, I use the "SAME PC" tho.
Of course the new one refused license key.
What am I supposed to do?

P.S. My pc currently has both old one and new one.
Should I deactivate the old one before using the new one?