One phone, two serial numbers!?

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http://forum.xda-developers.com – I noticed something strange when using fastboot yesterday. The serial number from "fastboot devices" command (and also number found in "settings>about phone>status>serial number") differs from one under the battery. Can someone also check if this is normal or what. The phone was brand new and sealed when I bought it a few days ago. Apart from that, everything works fine. Thanks. (HowTos)