Although many hard drives can lock, there is still a chance that one will not. There is a workaround, you can know this key meaning making the numbers all zeros and locking the hard drive, this can then be placed in any xbox that has their keynote too. Locking the hard drive means that the hard drive is locked with a specific code that pairs the hard drive to that specific xbox motherboard, making it impossible to use that hard drive in any other xbox.

If you saw mod without performing the tsop method, you must lock the hard drive.

Using the TSOP method allows you to use any hard drive without locking it. The TSOP method requires you to solder bridge points on the xbox motherboard in addition to soft modding the xbox in the same way as described in this guide. The first is the soft mod, which replaces the original dashboard with modified software and allows homebrew apps to be installed alongside your game collection. There are three methods for modifying an original Xbox that all lead to the same result. How To Mod An Original Xbox To Play Emulators

Original xbox sega emulator