How to Unlock Software for a Sony Ericsson S500i

Written by matt mcgew
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The Sony Ericsson S500i is a quad-band Global Systems for Mobile Communications (GSM) based mobile phone. The phone is normally sold with a carrier lock that prevents the phone's software from working with a Subscriber Identity Module (SIM) sold by a different cellular service provider. By unlocking the Sony Ericsson S500i, the phone's software will function properly with any GSM cellular service provider's SIM card, and you can use the phone on any GSM cellular service provider's network.

Skill level:


  1. 1

    Call your cellular service provider and request the unlock code for your Sony Ericsson S500i. AT&T and T-Mobile, the major GSM cellular service providers in the United States, will generally provide the unlock code to you free of charge if you have an active account that is in good standing. Alternatively, it is possible to purchase the unlock code from a company that specialises in unlocking mobile phones such as

  2. 2

    Slide the back cover off the phone and remove the battery from your Sony Ericsson S500i.

  3. 3

    Remove the existing SIM card from the phone. The SIM compartment is located under the phone's battery.

  4. 4

    Replace the battery and back cover of your Sony Ericsson S500i, and power on the phone.

  5. 5

    Press the "Left Arrow" key.

  6. 6

    Press the "*" key two times.

  7. 7

    Press the "Left Arrow" key.

  8. 8

    Enter the unlock code for your Sony Ericsson S500i. Your phone is now unlocked, and the phone's software will work with any SIM card from a GSM cellular service provider.

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