Not completely pointless if you tell us how you renamed it!?
If your phone is rooted and you are using a custom rom follow these
Basically get a File Manager that allows for Root Access (Root manager, ES File Explorer)
in ES File explorer first press menu>settings>root settings> Tick both boxes (choose HiAPK when asked)
Go back to file manager, press "/" in top left, System> Build.prop> open in ES Edit Note.
Now scroll down about half way until you find "ro.product.model=" now next to that = write whatever you like, (mine reads for that line "ro.product.model=Dan H's Pulse Mini with MG ROM"
Once done press MENU, Save. If it doesn't save longpress anywhere in the text and click cut all. Now go back to /System/ delete build.prop, then create a file named "build.prop" open as text> ES edit note, now longpress and paste all the text.
Now restart your phone and look under Settings> About phone.
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