Question about Samsung Cell Phones

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I have purchased a Samsung GT-B3730 without a SIM card abroad. When I arrived to my home country I found out my SIM card does not work with it. I got a message "Network Lock" that indicates that the SIM can not work with the device. Can you help me unlock the device in order to work with my SIM?

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First you need to remove the sim card in unlocking your Samsung, then Open your samsung then type #*7337# to unlock or *2767*688#. After unlocking your samsung turn off your phone and insert the sim card you are going to use.

Hope this solution helps, Thank you for using fixya.

Posted on Oct 07, 2010

  • temp182 Apr 27, 2011

    Hi benchfyi,
    How can I type this code? The modem does not have a keyboard.
    Thanks.

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Samsung GT-B3730 unlock, best way is to buy unlock code, then will send you code and unlock instruction, any way as i know is not possible to get free unlock code for this model only way is to buy.


best way is by unlock code, is safe.


can be unlocked almos samsung models by samsung unlock code


here you can get unlock code for your Samsung GT-B3730:
samsung gt-b3730 unlock code - how to calculate, byimei.com

Posted on Oct 23, 2012

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Posted on Jan 02, 2017

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Do you want to use your BSNL SIM card on your Samsung Galaxy S2 which was from any foreign country? If so, first ensure that the device is free from network restriction. If so, you can just insert your BSNL SIM card and start using it. If it is network restricted, you need to unlock the device in prior. You can unlock a Samsung Galaxy S2 safer and easier using unlock code. You can get the unique unlock code for a Samsung Galaxy S2 from WickedUnlock.com at an affordable cost. Good luck.

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1 - Switch ON your Samsung Galaxy S2 with a NOT ACCEPTED SIM Card.
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Samsung europe


Yes,It will work.But Roaming charges will be applicable.
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3.Try to access network through Wi-Fi while visiting abroad.
4.You can also avoid roaming by use the local carrier sim card,which is available in that country.Before put local carrier,Make sure your phone is unlocked or not.If it's restricted by some network,try to unlock your phone using
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If you need to prevent Overseas charges while visiting abroad,You should keep in mind the following instructions
1.Turn your voicemail off
2.Just switch Data Roaming off with a help of your service provider.
3.Try to access network through Wi-Fi while visiting abroad.
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Hi which sim card you want put in Samsung GT I5700?
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HI whether you want to unlock your samsung b3730 mobile from network lock ..Then have a look at sites like Mobileunlocksolutions.com here they render unlock code for all mobile models at reliable cost ..You first check that whether they are rendering code for your country and network provider ..If yes then pay for it and unlock your phone ....

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I am going abroad and have a pay as you go phone. Can I change the sim card in the next country?


yes both aus and nz need quad band phones however be carefull which sim card you choose as some networks require phones to have other chips in them. It may also be worth trying a couple of different sim cards before you leave to make sure your phone is "unlocked" for other networks. If not, you will need someone to unlock it for you.

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HOW CAN I FREE NOKIA 6700S FREE TO USE ABROAD.


There is no such thing as a free cell useage anywhere abroad.
You can contact you cell phone service provider and enable ROAMING on your cell phone to the country you need.
Otherwise
You can purchase a prepaid SIM card in the country you are visiting and use it in your cell phone.
NOTE Your cell phone must be an unlocked cell phone. If your cell phone is locked to your cell phone service provider then, you can arrange for a restriction unlock code from your cell phone service provider and advise them that you wish to us an overseas prepaid SIM card in your cell phone when you are travelling overseas.

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To Unlock it from Network Lock ,get the Network Unlock code and instructions from
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Then check Unlock code for your Network lock and Country Lock,then Unlock it....You can follow the instructions Below and Unlock it step by step:


Samsung i5500 Unlocking Instructions Warning : Do not enter any wrong unlock codes on your Samsung i5500 mobile phones. If you enter over a certain amount of wrong unlock codes on your Samsung i5500 mobile phone, your phone may get hard locked and sometimes become unusable.
Method 1:

1 - Switch ON your Samsung i5500 with a NOT ACCEPTED SIM Card.
2 - Samsung i5500 will ask for "Password".
3 - Enter the Unlock Code.

OR (if the Samsung i5500 shows "Insert Correct SIM Card")

Method 2:

1 - Switch ON your Samsung i5500 with a NOT ACCEPTED SIM Card.
2 - Don't bother about what's being displayed on your Samsung i5500.
3 - Compose : #0111*CODE#.

NOT ACCEPTED: We mean, to use a sim card from a network other than the network your Samsung i5500 is locked to.
CODE: Its the unique Unlock Code for your Samsung i5500.

If method 2 does not work, you can try method 2 again but this time without any SIM card on your Samsung i5500.

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