Category: GB Mobile Service

Important Notice on 150GB Plan

Hello everyone,

We have an important update regarding 150GB plan.


The plan is no longer available now and data usage is reduced to 100GB per month for current and new users.

We are sorry for the inconvenience you may have with its sudden change.
It was unexpected or uninformed for us also and it was decided and performed by Softbank.

Plan price will be reduced to ¥3970 from ¥4470 as same as 100GB plan.

New price will be effective from new bills starting today Sept. 27th. 2021.

Please check your status and billed amount with your smartpit number at the page link: https://www.goodbranch.co.jp/searchsp/

Thank you for your patience and understanding.

Promo Video Clip: Easy-Life! Easy-Start!

Is it the time to change your mobile service? Please check here to get to know more about GB SIM & US Good Branch with GB promo video https://youtu.be/R61RaSuXxOE

This is an intro video of GB SIM & about us Good Branch. We are here to serve foreigners living in Japan by providing mobile Internet service and mobile products. Please check our handmade video to get to know about us and our product. If any questions, please feel free to contact us.

Thank you all for the prayers and supports!!

God bless you 🙂

From Good Branch Inc.

150GB Plan is Back and Big Discount on 100GB Plan

150GB Plan is back now with 4980 yen / month.

2month advance payment of 8,980 yen and 3month advance payment of 12,980 yen are still available.

New pricing of 100GB Plan will start with 4480 yen/month.

2month advance payment of 8,880 yen and 3month advance payment of 12,880 yen are also new.

For referral order, 100GB & 150GB plan both gives monthly referral discount amount of 500 yen.

These 2 plan sims can be used with Grace Prepaid WiFi as Spring Sale Price of 6,980 yen and that of 5,980 yen for SIM only order as of now. 

Spring Promo continues until end of April 2021.

For more details, you can check the link here about Spring Sale on Grace WiFi with New Plans.

For existing users of 100GB plan, new monthly rate will start after the billing date of April 13th. You can check the plan status with smartpit number.

How to change Wi-Fi Password for Grace WiFi

Step 1 – Open Internet Browser: Safari, Chrome, Edge etc.

*Make sure to have WiFi connection between your gadget and Grace WiFi

2-1 Type & access to “192.168.0.1” in the address bar.

2-2 Type “admin” in the blank space & tap “Login” button.

3 – Tap “Wi-Fi Settings”

4 – Tap “Wi-Fi Settings”

5 – Type New Password & Press “Apply” button

*Password should be more than 8 characters

6 – Confirm by tapping “Yes” and done!

7 – After successfully changing Wi-Fi password, you will need to re-connect wifi with the new password just created.

[Soffy WiFi White] How to setup GB APN

Video Instruction

Here is How To Setup

1st. Connect WiFi setting at mobile setting with Soffy WiFi

2nd. Open any Internet Browser, and type 192.168.128.1

3rd. Login with password: “admin”

4th. Go to “PC View” and “Settings” and “Mobile Network Setting”

5th. Go to “Profile Management”

6th. Press “New profile” to create a new APN

Profile name: GB1

APN: plus.4g

User name: plus

Password: 4g

Authentication: CHAP

*All the characters should be small letters. NO capital letters are accepted.

6.2. Press “New profile” to create a new APN under Ymobile A

Profile name: GB2

APN: plus.4g

User name: plus

Password: 4g

Authentication: CHAP

*All the characters should be small letters. NO capital letters are accepted.

7th. After entering correct APN info at 6th step, then check Internet Connection is OK. If APN info is properly set, you should have Internet now. Good job!!

How to Setup APN on Eria WiFi

1. Connect WiFi

2. Open any web brower and access 192.168.0.1

3. At login site, login with password: admin

4. At Setting tool site, go to “Settings”

5. Go to “Network Settings” and “APN”

6. Create new APN account by going to “Manual” and “Add New”

7. Fill up APN info according to GB plan and press “Apply” button

100GB Plan:
Profile Name: GB
IPv4 APN: plus.4g
IPv4 Authentication: CHAP
IPv4 User Name: plus
IPv4 Password: 4g

6GB Plan:
Profile Name: GBB
IPv4 APN: lte-d.ocn.ne.jp
IPv4 Authentication: PAP
IPv4 User Name: mobileid@ocn
IPv4 Password: mobile

8. Choose “Profile” as profile just created and press “Set as default”

9. Restart WiFi and check successful connection.

How to change WiFi password on Soffy WiFi LTE 100GB

First, it is required to download Mobile App of Soffy WiFi.

The mobile App looks like the image below.

when app is open, you will see the main menu below. Then click “Log In”.

Log in with password: “admin” and press “Log In” button.

After successful login, choose Settings mark at the right-top corner.

Then click “My Wi-Fi” in Settings.

Then change password and press “Save”.

Click “OK” to restart WiFi device. After restarting and connecting wifi with the new password just created, done changing WiFi password!! Do not forget the password you created!!