ATT Sony Ericsson W580i Unlock Instructions This set of instructions also work for Sony Ericsson W518a, C905a, W300, W350, W600i, W810i, etc. 1. For the unlocking of a locked Sony Ericsson no sim card is required. 2. 3. 4. 5. 6.
Turn on the handset. Display will indicate “Insert SIM.” Press the left Arrow (<) button. Press the star (*) button twice. Press the left Arrow (<) button again. You will briefly see one of the following messages listed on devices display: “Personalized with MNC2” or “Personalized with MNC3”. 7. Wait approximately three seconds. 8. The display will indicate “Network” and a picture of a closed lock. 9. Press Select. 10. The display will indicate “Unlock (Net) 5” and “NCK:” 11. Enter the 16 digit NLCK4U code 12. The handset will display “Network unlocked” and the display “Insert SIM” appears. 13. The handset is successfully unlocked. This set of instructions also work for Sony Ericsson W518a, C905a, W300, W350, W600i, W810i, etc.
Get the Unlock Code for AT&T Sony Ericsson W580i