Precautions when using mobile phones sold by companies other than Y!mobile
- ●Products that have not been unlocked cannot be used.
- ●We may restrict the use of communication services for smartphones that have been fraudulently contracted or obtained illegally.
- ●We cannot guarantee the operation of all Y!mobile services, including voice calls, SMS, email (MMS), packet communication, and additional functions such as tethering.
- ●Monthly fees will be charged for services and content provided by Y!mobile even if you are not able to use them.
Location navigation, Smartphone Basic Pack-S, etc.
- ●Charges will still be incurred even if you are unable to use services purchased for a fee through applications downloaded from Google Play™ or other sites.
- ●When using voicemail on a mobile phone sold by a company other than Y!mobile, you may need to set up a forwarding phone number.Please check here for details.
- ●"Simple3 S /M/L" and "Simple2 S /M/L" customers who wish to use voicemail or call forwarding must subscribe to "Voicemail Plus."
- ●It can be used in Y!mobile service area. The maximum service area is the area where it can be used.
[5G] 3.7GHz3.7GHz、700MHz、1.7GHz、3.4GHz、28GHz
[4G] 2.5GHz2.5GHz、2.1GHz2.1GHz、1.7GHz1.7GHz、900MHz900MHz
High-speed, large-capacity 5G (new frequency) is available in limited areas. Please check the applicable area carefully before signing up.
The service area varies depending on the communication method and frequency supported by your device.
Depending on the model, you may not be able to use the available communication method or frequency even if it matches.
For the specifications of your mobile phone, please contact your mobile phone retailer.
Communication restrictions
We may limit communication speeds for customers who use large volumes of data over a certain period of time.
In addition, to provide better network quality, traffic information is collected, analyzed, and stored for each communication.
Please note that we may impose restrictions on communications as specified separately.(For more details, please click here)
A Note About Automatic Communications
Depending on the model you use, communication charges may be incurred if the device automatically communicates.
For detailed product specifications, please contact the company that sold you your mobile phone.
- ※Please note that the handling office varies depending on the business operator.
Regarding repairs/after-sales service
- ●Y!mobile cannot provide after-sales services such as accepting repairs or handling of mobile phones sold by other companies, or answering questions about combining them with Y!mobile 's eSIM.
For matters regarding mobile phones sold by companies other than Y!mobile, please contact the company that sold you the mobile phone.
- ※Please note that the handling office varies depending on the business operator.
- ●If you delete your eSIM profile, or if your device is lost or broken, you will need to reissue your eSIM profile. Reissuing an eSIM profile will incur an eSIM reissue fee.
If you apply for eSIM reissue through My Y!mobile, there will be no handling fee.
- ※If you are unable to log in to My Y!mobile using line authentication due to reasons such as deleting your profile or losing your device, you will need to go to a store and incur an administrative fee.
Regarding certification of technical standards for mobile phones
If you use a mobile phone sold by another company with Y!mobile 's eSIM, please make sure that the mobile phone complies with laws and regulations, including technical standards compliance certification.
- ●Mobile phones with the "Technical Conformity" mark are compliant with the law. For details, please refer to the Ministry of Internal Affairs and Communications' Home page Please check the following. Even if a device does not have a technical conformity mark, if you are a contract holder with an overseas telecommunications carrier that has an international roaming agreement with a Japanese telecommunications carrier and you are using a mobile phone that can be used under the international roaming agreement in Japan, you do not need to undergo an inspection when connecting to our line.
- ●If we determine that you are violating laws and regulations, we may refuse to allow you to connect.
- ●When using Y!mobile eSIM, you may not be able to use some services that use only communication methods different from those provided by our company.
Disclaimer
We are not responsible for any issues that may arise from using a mobile phone sold by another company with Y!mobile 's eSIM.
