mobile

Hi guys, just a quick question.

With Nexus devices, if you flash a factory image then you relock the bootloader them return in warranty.
How does it work on Motorola? The same? Or there is a sort of "counter" which shows that the bootloader was previously unlocked (as HTC's "Relocked" voice in bl)? And if yes, is there a way to hide or "reset" it?

Thanks in advance and sorry for my bad English.