Procedure for Unlocking a SIM Lock

If you, for example, wish to use your DOCOMO mobile phone with another carrier's SIM card inserted while overseas or in Japan, the procedure to unlock the SIM lock of your DOCOMO mobile phone or other device needs to be performed.

  • For details on conditions of provision in the case of ahamo billing plan, please refer to New windowahamo website (in Japanese only).

SIM locks can be removed online for free if the service conditions are met.

  • For docomo Feature Phone (i-mode), docomo Raku-Raku PHONE, docomo Kids&Juniors (except for Smartphone for Junior, Kids' Keitai F-03J and Kids' Keitai SH-03M) and data communications product (data cards, Wi-Fi routers) models released between April 2011 and April 2015, procedures must be carried out at docomo Shops.

Acceptance Conditions

The following is the guide to acceptance conditions for unlocking a SIM lock.

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AlertNotes

For notes on unlocking a SIM lock when, for example, the SIM lock has been unlocked or when your mobile phone or other device will be used with another carrier's SIM card, etc.*4 inserted, see Notes.

  1. "SIM card, etc." refers to a SIM card and SIM information

Models Compatible with SIM Lock Unlocking

Information on the models compatible with SIM lock unlocking.

Items Required

The mobile phone on which to perform the SIM unlocking procedure*5*6*7

  1. DOCOMO will verify that you are the subscriber by confirming your name, date of birth, etc. If applications are for lines in the name of a company or organization, documents verifying identity of the person who applies may be required. Furthermore, if the identification of the person who applies is National Health Insurance Card, a utility receipt, credit card, student ID, Certificate of Residence (Juminhyo), or Certificate of Registered Matters on Alien Registration does not have to be included.
  2. With regards to a mobile phone or other device with Omakase Lock or Mobile Phone Protection Lock set, an application will be able to be accepted after the corresponding lock has been unlocked.
  3. With regards to a mobile phone or other device with water damage or other extensive damage, an application will be able to be accepted after repairs have been carried out.

If You Forget Your PIN or Password

DOCOMO may ask you for your PIN and password when you perform the required procedure at a shop.
If you have forgotten your PIN or password, see the procedures for confirming, resetting, and reissuing of a PIN and password on the If You Forget Your PIN or Password page.

SIM Lock Unlocking Handling Fee

The SIM lock unlocking handling fee differs depending on the application method.

  • For models released between April 2011 and April 2015, SIM unlocking can only be performed at docomo Shops, and a SIM unlocking fee of ¥3,300 (incl. tax) will be charged regardless of the model.
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  • SIM lock unlocking handling fee for DOCOMO subscribers

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    (incl. tax)

    DOCOMO subscriber
    Device types Application method
    PC/Smartphone
    (My docomo)
    Phone docomo Shops
    docomo Smartphone, docomo Tablet, docomo Feature Phone (sp-mode), docomo Raku-Raku PHONE (sp-mode), docomo Raku-Raku SMART PHONE, Smartphone for Junior, Kids' Keitai F-03J, Kids' Keitai SH-03M Free ¥3,300 ¥3,300*8
    iPhone, iPad Free ¥3,300 ¥3,300*8
    docomo Feature Phone (i-mode), docomo Raku-Raku PHONE (i-mode), docomo Kids&Juninors (except for Smartphone for Junior, Kids' Keitai F-03J, Kids' Keitai SH-03M) Free
    Data communications products (data cards, Wi-Fi routers) Free
    1. If one of the following conditions is met, no handling fee will be incurred for unlocking the SIM of a new mobile phone at the time of purchase. The mobile phone will be given to you with the SIM unlocked, so it is not necessary to apply for the unlocking procedure.
      1. When the corresponding model was paid for in full.
      2. If credit card*2 is selected as the payment method for DOCOMO mobile phone charges for the corresponding line or the representative line of a single billing group.
  • SIM lock unlocking handling fee for person who has cancelled DOCOMO subscription

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    (incl. tax)

    Person who has cancelled DOCOMO subscription
    Device types Application method
    PC/Smartphone
    (My docomo)
    Phone docomo Shops
    docomo Smartphone, docomo Tablet, docomo Feature Phone (sp-mode), docomo Raku-Raku PHONE (sp-mode), docomo Raku-Raku SMART PHONE, Smartphone for Junior, Kids' Keitai F-03J, Kids' Keitai SH-03M Free ¥3,300
    iPhone, iPad Free ¥3,300
    docomo Feature Phone (i-mode), docomo Raku-Raku PHONE (i-mode), docomo Kids&Juninors (except for Smartphone for Junior, Kids' Keitai F-03J, Kids' Keitai SH-03M) Free
    Data communications products (data cards, Wi-Fi routers) Free

How to Apply

You can apply by PC, smartphone, docomo Feature Phone (sp-mode), phone, or at a docomo Shop.

[When applying by phone]

An application by phone is only accepted for a DOCOMO mobile phone for which there is the history of the subscriber purchasing it.

  • For docomo Feature Phone (i-mode), docomo Raku-Raku PHONE, docomo Kids&Juniors (except for Smartphone for Junior, Kids' Keitai F-03J and Kids' Keitai SH-03M) and data communications product (data cards, Wi-Fi routers) models released between April 2011 and April 2015, procedures must be carried out at docomo Shops.

PC,
smartphone,
docomo Feature Phone
(sp-mode)

You can apply from (docomo Online Application). The required d ACCOUNT can be easily issued, so even beginners can start using right away.

  • A d ACCOUNT is required for use.
  • Operation procedures on the actual screens are in Japanese.
Business hours :
24 hours *9

Phone

  • To apply from a DOCOMO mobile phone, call 151 (toll free, in Japanese only) without an area code.
  • For inquiries in English, Portuguese, Chinese, and Spanish, and applications from landline phones, see General Inquiries (docomo Information Center).
Business hours :
9 a.m. to 8 p.m.

docomo Shops

Shops accept up to two mobile phones per customer for each unlocking request.

All shops provide this support service through interpreters, to enable foreign language speaking customers to stop by freely and comfortably.
Business hours differ by shop. See the pages of individual shops for details.

Business hours :
Within the business hours of the corresponding shop
  1. Unavailable from 10:30 p.m. every Tuesday to 7:00 a.m. the following morning due to system maintenance.

Notes

Please be sure to read following notes before unlocking a SIM lock.

  • Please note in advance that a SIM lock cannot be locked again once it has been unlocked.
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  • About data stored on a mobile phone

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    • The data stored on your mobile phone (regardless of whether the data was created by you, and including, for example, data that was downloaded from an external source) may be altered or lost when you unlock the SIM lock.
    • DOCOMO bears no responsibility whatsoever for the alteration or loss of data on your mobile phone due to unlocking the SIM lock so it is your sole responsibility to take measures such as backing up the data.
    • With regards to any registered data that remains for functions provided by your mobile phone ("Osaifu-Keitai" function, etc.), you are requested to manage the data yourself to prevent unauthorized use by a third party.
  • About operation checks and operation guarantee when using another carrier's SIM card

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    • With regards to using a mobile phone with another carrier's SIM card, etc.*10 inserted, DOCOMO does not, in principle, carry out operation checks on DOCOMO mobile phones and other devices*11*12 and so does not whatsoever guarantee operation.
    • There may be restrictions on the services, functions, downloaded applications, etc. that can be n using a mobile phone with another carrier's SIM card inserted. Furthermore, the SIM cards of other carriers providing transmission methods that differ from those provided by DOCOMO cannot be used for voice calls and other communications services. They can also not be used for emergency calls.
    1. "SIM card, etc." refers to a SIM card and SIM information.
    2. Including a data card, mobile Wi-Fi router, etc.
    3. For models released in or after May 2015, refer to PDFModels Compatible with SIM Lock Unlocking and Compatible Frequency Bands [PDF format:652KB] (in Japanese only) to see the models DOCOMO has verified cannot be used for voice calls (including emergency calls) and data communications while an au IC card or SoftBank USIM card is inserted,
  • About usage charges

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    • When you use your mobile phone or other device with another carrier's SIM card inserted, charges determined by the carrier providing the telecommunications services used with corresponding SIM card will apply. For details on the usage charges of the telecommunications services provided by the another carrier, contact that carrier.
    • Fami-wari MAX50, Hitoridemo Discount50, and various other discount services can still continue to be used after the SIM lock is unlocked. However, please note that you will have to pay a set cancellation fee and the application of Monthly Support will be stopped if, for example, you cancel your DOCOMO line subscription. For details, see the page about cancellation.
  • About mobile phone repairs

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    Requests for repairs of a DOCOMO mobile phone or other device will be accepted at a service counter even if the SIM lock has been unlocked.
    However, depending on the malfunction, you may be requested to contact the carrier providing the telecommunications services of the SIM card you inserted. Please note that you will be unable to borrow a replacement handset while repairs are being carried out if you do not have a DOCOMO line subscription.
    Furthermore, please note that the SIM lock of any replacement handset available for borrowing will not be unlocked even if you have a DOCOMO line subscription.

  • About handling of personal information

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    DOCOMO shall use any personal information obtained when an application is made to unlock a DOCOMO SIM lock for the purposes of checks at the time of acceptance for unlocking the SIM lock, management of the mobile phone with the unlocked SIM lock, and dealing with any comments, requests, inquiries, etc. that are received, and shall handle the personal information in strict compliance with "NTT DOCOMO Privacy Policy" determined separately.

  • Disputes and other issues with third parties

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    DOCOMO bears no responsibility whatsoever in the event of any inquiries received from or disputes or other issues with third parties as a result of unlocking the SIM lock of your mobile phone or other device or inserting and using another carrier's SIM card in your mobile phone or other device with an unlocked SIM lock, and it is your sole responsibility to resolve any such dispute or other issue.

  1. DOCOMO only accepts credit cards that are designated by DOCOMO and are issued under the name of the subscriber.
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