Question about Sony Ericsson W300 Cellular Phone

1 Answer

SIM Unlock I purchased a w300i from someone, and would like to make it work for with my Cingular SIM card. How can I do it?

Posted by on

1 Answer

  • Level 1:

    An expert who has achieved level 1.


    An expert that hasĀ over 10 points.


    An expert whose answer gotĀ voted for 2 times.

    Problem Solver:

    An expert who has answered 5 questions.

  • Contributor
  • 12 Answers
Re: SIM Unlock

A repair shop should take the network lock off for you

Posted on Dec 28, 2007

Add Your Answer

0 characters

Uploading: 0%


Complete. Click "Add" to insert your video. Add


3 Points

Related Questions:

3 Answers

I need restriction code for my LG phone cingular has a Tmobil sim card

you can get the codes from your service provider itself if your phone is 6 months. else you can purchase codes from third party vendors. i got one from here.

Sep 06, 2011 | LG C2000 Cellular Phone

1 Answer

Wrong Sim Card Error. Sony Ericsson w300i Fido Would like to use it with Rogers.

May be Your Mobile locked to some Network,so that it saying wrong Sim Card,You can get the Unlock code here
and Unlock the mobile from the Network lock.

Nov 14, 2010 | Sony Ericsson W300 Cellular Phone

2 Answers

What do you do when it says wrong card in a samsung t45 9 gravity

your phone must first be unlocked to use it other sim cards, try unlocking your phone using codes form from and

Mar 30, 2010 | Samsung Gravity SGH-T459 Cell Phone

1 Answer

Where can I buy a sim card to use while traveling out of Canada to the United States?

First, you need to make sure your phone is SIM unlocked. After unlocking your phone, you can purchase an Cingular (AT&T) SIM card on eBay. Then call 1-800-331-0500. And set up a Go Phone account.

Go Phone is owned by Cingular (AT&T) in the United States. This is a pre-pay cell phone account that uses the Cingular (AT&T) SIM cards. You will have several options as to how you will be billed depending on the service you require. Pre-pay data is also available too, for an extra fee with the Go Phone plan.

See Go Phone Plans:

AT&T uses the 850/1900MHz band (1900 MHz UMTS band for 3G data) for cell phones in the US. Make sure your phone can use this bands.

If you need to SIM unlock your phone, you can do this two different ways.

The first is to contact your service provider and inform them that you need to have your phone SIM unlocked for international travel. Most providers require your account to be in good standing and that you've been their customer for a certain amount of time. Then, it's free.

The second is to purchase an unlock code. These can usually be found on eBay for as little as $2 US.

To search for the unlock code for your phone, on eBay, type in your phone model and the words 'unlock code' and your current service provider. (Example: Samsung BlackJack i607 Unlock Code Rogers) Once purchased, simply follow the instructions sent to you with the code and unlock your phone - then use the Cingular (AT&T) SIM card with the Go Phone pre-pay plan.

Tip: On some phones you must insert a SIM card NOT used by your current service provider when you enter the unlock code.

Mar 26, 2010 | Motorola Mobility RAZR V3c Cellular Phone

2 Answers

Need to know unlock code for alltel HTC PPC6800

sell the phone on e-bay and purchase a cingular phone. only t-mobile and cingular can be unlocked. alltell phone work on a differnet frequency and cannot be compatible with these carriers like yours. sorry.

Jul 31, 2009 | Cell Phones

2 Answers

What is my 8 digit SIM unlock code for Lg cu500

i have an extra sim card, i just cant use it in a cingular phone i got from someone

Oct 18, 2008 | LG CU500 Cellular Phone

3 Answers

Sim lock code

try unlock codes from and to unlock your phone

Apr 02, 2008 | Motorola Mobility V557 Cellular Phone

2 Answers

Unit locked

i put a cingular sim in my i880
pls someone let me know the subsidy code for my i880 phone

Mar 10, 2008 | Motorola Mobility i880 Cellular Phone

6 Answers

Unlock codes for sony ericsson w300i

i got this phone temporarily and the old owner does not remember the code, please help me unlock this phone

Oct 21, 2007 | Sony Ericsson W300 Cellular Phone

Not finding what you are looking for?
Sony Ericsson W300 Cellular Phone Logo

Related Topics:

31 people viewed this question

Ask a Question

Usually answered in minutes!

Top Sony Ericsson Cell Phones Experts

Donald DCruz
Donald DCruz

Level 3 Expert

17129 Answers


Level 3 Expert

18259 Answers


Level 2 Expert

567 Answers

Are you a Sony Ericsson Cell Phone Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides