How to Unlock the SIM for a Sony Ericsson W610i

Written by amy mcclain
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How to Unlock the SIM for a Sony Ericsson W610i
You'll need to enter a PIN on powerup if the SIM lock is set. (sim card image by Renato Francia from Fotolia.com)

The Sony Ericsson W610i is designed to work on GSM networks. Connecting to the network requires the use of a SIM (Subscriber Identity Module), which is supplied by your wireless carrier. The SIM stores important information, including your account details, phone number and contacts, for example. You can protect it from unauthorised use by setting the SIM card lock feature on your W610i. If you've locked the device inadvertently or are unsure of your PIN, you may need to contact your provider for assistance.

Skill level:
Easy

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Things you need

  • Customer service number of your wireless provider

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Instructions

  1. 1

    Press the "Power" button (located on the top of your phone) to turn the device on. When the SIM is locked, an "Enter PIN" message will display.

  2. 2

    Use the keypad to type in your four- to eight-digit PIN. If you do not know the PIN or have never changed it, enter in the default PIN as set by your provider. (T-Mobile uses "1234," and AT&T uses "1111.")

  3. 3

    Press "OK." If the correct code was entered, your W610i will be unlocked. Otherwise, "Wrong PIN" will display. Continue to Step 4.

  4. 4

    Re-enter the PIN code until "PIN Blocked" is displayed. (After three wrong PIN entries, you will see this message.)

  5. 5

    Contact your wireless provider to request the PUK (Personal Unblocking Key) for your phone.

  6. 6

    Use your keypad to type in the PUK and press "OK." You will then be prompted to enter a PIN.

  7. 7

    Enter in a new four- to eight-digit PIN and press "OK." Re-enter the PIN when prompted, making sure the codes match. Press "OK." The phone is now unlocked.

Tips and warnings

  • To turn off the PIN request, open your menu and choose "Settings." From the "General" tab, choose "Security," then "Locks." Choose "SIM Protection" and select "Off."
  • Ten wrong entries of your PUK will permanently block your SIM card.

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