I finally had to get a new card for my Cell Phone, and I found that I couldn’t do it by myself. So, I am writing this in case someone else finds it useful.

To change the email address that the phone uses, go to this page, and go through the “Forgot email” part. To check your current email, go to “account details” from the Phonebook menu.

To get the Softbank 730SC (The standard candybar prepaid phone) into English, do this:
Go to the main menu. (The button in the middle of the d-pad). If a white message box pops up, the keyboard is locked. To unlock, hold the middle button for a while, and then press it twice to get to the main menu.

From the main menu, press 9 4 1 , select a language, and then press the middle button again.

First, if you change the menu for service (1400) to English, it becomes much easier.

Dial 1400
Then press 3, “Language Selection”
Japanese is 1, English is 2.
You need to press # to confirm your choice.

To enter a new card:
Dial 1400
From the main menu, press 2
Type in the card number, and press #
The lady reads back the number
Press # again if that is correct.

In the main menu:
1 is Account Info
2 is Card entry
3 is Language selection
4 is Mail service

Mail service is ¥300 for 30 days, the phone card is ¥3000 and is valid for 60 days. The ¥300 charge comes out of the ¥3000 cards value.

Other notes about Softbank:

S-Mail! only works between Softbank or Disney phones, so to send to a phone on another company, an email or SMS would have to be used.