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Unlocking Service for Smartphones
 
Cell phones supplied by Mobile Phone Network Providers (carriers) commonly come locked to those carriers. The locked phones only work with those carriers; they cannot be used with another carrier's service. The Unlocking Service is to release the cell phones from such restriction. If a cell phone is unlocked, it can be used on other carrier’s network that is compatible with your cell phone’s wireless communication system. If your cell phone is for GSM and WCDMA systems, you may get a lot of advantages from the unlocking because the communication systems are very common in both European and Asian countries.
 

IF your cell phone is unlocked,
 

You can use your current phone with other carriers.

If your phone is unlocked, you can switch to another carrier’s service without changing a handset. You do not have to buy a new expensive phone.

Unlocking service is recommended those who want to change their carrier but do NOT want to

  • change your phone,
  • be bound by a two-year contract, or
  • sign a two-year contract with a new carrier to get a good deal on cell phones.

You can make a call in Japan or Europe
without international roming

You can use your unlocked phone in Japan or Europe without paying high international roaming rates to your carrier.

When you travel in foreign countries, you may make a call using international roaming service that cost you a lot of money.  You can enjoy long calls at lower cost that is much cheaper than roaming  if you can use a local prepaid SIM card with your phone.  All you have to do is to insert the local SIM card into your unlocked phone. For visitors to Japan, we provide JAPAN SIM Card that enables you to use Japanese phone number and Japanese local airtime rate.  For the details, see JAPAN SIM Card Page.

cell phones used outside USA can be used in USA
at local airtime rate

Even Softbank phone or iPhone you have used in Japan can work in USA without international roaming.  You do not have to make a two-year contract with local carriers in USA.

  It may be the best way for short-term residents in US to unlock your phone you have used in your country and use it with pre-paid SIM card (no annual contract). For example, T-Mobile offers 1500 Talk & Text (with 30 MB of data) for only $30, Unlimited Talk, Text & Web (first 100 MB at up to 4G speeds) for only $ 50. You get unlimited calls to landlines in over 50 countries, unlimited texting to any mobile in over 200 countries, and discounted calling to landlines and mobile phones in over 150 countries with extra $10.

How to unlock your cell phone

There are mainly three methods to unlock smartphones.

  • Input an unlock code into your phone; The unlock code is generated based on your phone’s IMEI number (international mobile equipment identifier).
  • Jailbreak your phone and install unlocking software on it, which is for iPhone.
  • Insert an iPhone Unlock card attached to the SIM card you carrier provides into your phone in order to dodge your phone.

Recommended unlocking methods for each type of smartphones


 Installation of Unlock Code or application of iPhone Unlock Card does not damage cell phones at all. If you jailbreak iPhone, it is recommended not to update OS or Modem.  Updating OS after the jailbreak, your phone may get in serious troubles