How Can I Find Out Which Locks Are Enabled On My Sony Ericsson Cell Phone?

To find out which locks are enabled on your Sony Ericsson cell phone,  just press:
>*<<*<*  (right arrow, star, left arrow, left arrow, star, left arrow, star)

- Select “Service Info”
- Select “Sim Lock”
- You should see “network”, “network subset”, “service provider”, “corporate”, “extended”.  And next to each you should see a small lock. If the lock is in the locked position, that service is locked. If the lock is unlocked, then that particular service us unlocked (therefore you won’t need a code for it)