Casio W41CA Manual Manual page 29

Enter your PIN, press c (OK),
use j to select "
and then press c (Select). Use
j to select "
and then press c (Select).
Use j to select the text
box, and then press
c (Edit). Enter the e-mail
address you want, and
then press c (OK).
To input an e-mail address
"Inputting an E-mail Address" (page 37)
Use j to select "
(Send), and then press
c (Select).
The e-mail address confirmation screen
appears.
Press j to select "OK,"
and then press c (Select).
The message "
(Update is complete.) appears to indicate
that your e-mail address has been
changed.
Your PIN is the 4-digit number you entered on your subscription contract.
If the wrong PIN is entered three times a day, the setting operation will be
disabled until the following day.
If your e-mail address won't change in step 7:
The new e-mail address you entered may be registered by someone else
already. Try entering a different address.
" (Send),
" (Accept),
"
"
27