Procedure to Use Another Carrier's Mobile Phone or Other Device with a docomo SIM Card

When You Wish to Use Another Carrier's Mobile Phone or Other Device with a docomo SIM Card

Confirm the notes below before using a docomo SIM Card with another carrier's mobile phone or other device. If you do not have a DOCOMO line subscription, take the other carrier's mobile phone or other device to a docomo Shop and you will be provided with a docomo SIM Card after you confirm the notes.

Items Required

Image of items required

Another carrier's mobile phone*1 or other device*2*3

  1. Excluding products with the SIM lock set (the SIM lock is not unlocked).
  2. Mobile phones and other devices include HSPC and mobile Wi-Fi routers.
  3. DOCOMO does not guarantee the operation of any subscription/model combination other than a FOMA subscription with a FOMA model, a Xi subscription with a Xi model, a 5G subscription with a 5G model (with all models having been purchased at a DOCOMO retailer), or any mobile phones purchased from other carriers.

When you do not have a DOCOMO line subscription

Prepare the documents and other items required to make a new subscription.

Documents Verifying Identity

When you have a DOCOMO line subscription

When you have a DOCOMO line subscription and will change from a FOMA Card or docomo UIM Card to a docomo mini UIM Card or docomo nano UIM Card, the FOMA Card or docomo UIM Card is required.

Notes

For the procedure to use a docomo SIM Card with another carrier's mobile phone or other device and notes on the method of use, etc., see Notes on Using a docomo SIM Card with Another Carrier's Mobile Phone or Other Device.

Charges

When you do not have a DOCOMO line subscription

New contract handling fee: ¥3,300 (incl. tax)

  • Contract handling fee is not applied when you apply from docomo Online Shop.

If you are subscribed to a DOCOMO line and need to change the type of SIM card

Card issuance charge: ¥2,200 (incl. tax)

How to Apply

You can apply from docomo Online Shop or at a docomo Shop/d garden.

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

You can apply from docomo Online Shop.

  • Application cannot be made at docomo Online Shop for customers who are subscribed to a line and need to change the type of SIM card.
Business hours :
24 hours *4

docomo Shop
/d garden
docomo Shop/d garden

Business hours differ by shop. See the pages of individual shops for details.

  1. Unavailable from 10:30 p.m. every Tuesday to 7:00 a.m. the following morning due to system maintenance.
  • General retail stores and mass retailers do not support switching between a docomo mini UIM Card and a docomo UIM Card (FOMA Card), a docomo nano UIM Card and a docomo UIM Card (FOMA Card), or a docomo mini UIM Card and a docomo nano UIM Card.
    If you are currently using a docomo mini UIM Card or a docomo nano UIM Card and want to purchase a model that supports a different type of UIM card at a general retail store or a mass retailer, please visit a docomo Shop first for a UIM card replacement.

Notes on Using a docomo SIM Card with Another Carrier's Mobile Phone or Other Device

About other carriers' mobile phones and other devices that cannot be used

Other carriers' mobile phones and other devices only compatible with transmission methods that differ from those provided by DOCOMO, or with devices with the SIM lock set (the SIM lock is not unlocked) cannot be used for DOCOMO's communications services (5G service, FOMA service, Xi "crossy" service, etc.). They can also not be used for emergency calls.

  • To learn about supported communications methods and how to remove a SIM lock for a new mobile phone you are planning to use, please contact the carrier from which you purchased the phone in advance.

About operation checks and operation guarantee for a mobile phone or other device

DOCOMO does not perform operation checks or guarantee operation for the usage of any subscription/model combination other than a FOMA subscription with a FOMA model, a Xi subscription with a Xi model, a 5G subscription with a 5G model (with all models having been purchased at a DOCOMO retailer), or the usage of any mobile phone from another carrier with a FOMA Card, docomo UIM Card, docomo mini UIM Card, or docomo nano UIM Card inserted. For the setting and operating procedures of another carrier's mobile phone, confirm them yourself or contact, for example, the dealer. Furthermore, there may be restrictions on the services, functions, downloaded applications, etc. that can be used when using another carrier's mobile phone with a FOMA Card, docomo UIM Card, a docomo mini UIM Card or docomo nano UIM Card inserted.*5*6

  1. Monthly charges will apply even if you cannot use the services and content provided by DOCOMO.
  2. If you are using sp-mode, set the access point name (APN) to "spmode.ne.jp".

Frequencies used on the DOCOMO network

For the transmission methods and frequencies provided by DOCOMO, see New windowthe Ministry of Internal Affairs and Communications website (in Japanese only).

For customers who will use docomo nano UIM Cards

  • Before inserting a docomo nano UIM Card to use a docomo communications service (FOMA Service, Xi "crossy" Service, etc.), make sure that you are aware of the following limitations.
    • LTE communications are not available with some models.
    • Certain frequency bands are not available with some models.

About usage charges

You can apply to use another carrier's mobile phone with a billing system for the various billing plans, discount services, etc. that is the same as when a DOCOMO brand device is used. For details on the billing plans provided by DOCOMO, check the Charges webpages. Furthermore, please note that charges will be handled as follows if you use an another carrier's mobile phone.

  1. To use 5G Billing Plans, a 5G compatible model is required. If you wish to apply for a 5G Billing Plan at a shop with a 5G compatible model that you have personally prepared, you will need to bring the model with you.
  2. If you are using a FOMA service and are subscribed to Pake-hodai double, Pake-hodai simple, Pake-hodai FLAT, or Pake-hodai double 2, communications will not be applicable to DOCOMO i-mode communications, i-mode Full Browser communications, and smartphone flat-rate communications even in the case of communications using the browser function of the other carrier's mobile phone and thus the charge limit for communications when connected to a PC or other external device will become ¥8,580 (incl. tax).
    However, when the other carrier's mobile phone is a mobile phone for which DOCOMO has verified that tethering is not supported, etc., you can set an access point specified by DOCOMO*7 for that mobile phone. Packet communications after the setting is configured will be applicable to the flat-rate charge and charge limit of smartphone flat-rate communications*8*9. With regards to which mobile phones are applicable, DOCOMO provides notification on the DOCOMO website whenever it verifies that another carrier's mobile phone does not support tethering. At this point in time, the following mobile phones are applicable.
    Applicable model Date from which applicable
    STAR7 SoftBank 009Z
    • Model for which the first 8 digits of the manufacturing number are "35772204".
    From Thursday, January 19, 2012
    SoftBank 008Z
    • Model for which the first 8 digits of the manufacturing number are "35732604".
    From Wednesday, August 31, 2011
  3. If you are using a FOMA service and are subscribed to Pake-hodai, Pake-hodai full, or Biz-hodai, flat-rate communications will not be applicable just as described in (2) and thus you will be charged at a measured rate, so we recommend changing to Pake-hodai double, Pake-hodai simple, Pake-hodai FLAT, or Pake-hodai double 2.
  4. If you are subscribed to a flat-rate data plan, applicable communications will be limited to only communications made by connecting to a flat-rate access point. Also, VOIP, file exchange, and some other communications may not be available. Please note that communications made by connecting to other than a flat-rate access point will not be treated as flat-rate communications and you will be charged at a measured rate.
  1. For the access point information of mopera U, please check the New windowsetting procedure (using another carrier's product with a docomo SIM Card) (in Japanese only).
  2. When subscribed to Pake-hodai FLAT: Flat-rate monthly charge of ¥5,720 (incl. tax)
  3. When subscribed to Pake-hodai double, Pake-hodai simple, Pake-hodai double 2: Monthly limit of ¥6,270 (incl. tax)

About another carrier's mobile phone repairs

DOCOMO does not handle the repairs of other carriers' mobile phones. Contact the place of purchase, etc.*10

  1. Please note that where to submit a mobile phone for repairs differs depending on the carrier.

About the Technical Regulations Conformity Certification for mobile phones

Before using DOCOMO's communications services, confirm that the other carrier's mobile phone has received Technical Regulations Conformity Certification, etc.
A mobile phone that has received Technical Regulations Conformity Certification, etc. will have a conformity mark. DOCOMO may refuse to allow another carrier's mobile phone that does not have a conformity mark to connect to the DOCOMO network because it is in violation of the Radio Law. For details, see the New windowMinistry of Internal Affairs and Communications website.

Scope of liability

DOCOMO is liable for any malfunction of a FOMA Card, docomo UIM Card, docomo mini UIM Card, or docomo nano UIM Card, or failure of DOCOMO's communications services that are within the scope of liability described in the terms of service agreement of each service. However, DOCOMO bears no responsibility for any issues caused by the use of any subscription/model combination other than a FOMA subscription with a FOMA model, a Xi subscription with a Xi model, a 5G subscription with a 5G model, nor do we bear responsibility for issued caused by the use of a mobile phone from another carrier.
For notes regarding the use of a FOMA model with a Xi "crossy" subscription, see Notes.

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