Not only can you view it as an instruction manual for the "d-41A", but you can also start the terminal settings directly from the description for some functions, so you can use the d-41A more conveniently.
This application is an instruction manual (e-Torisetsu) for d-41A, so it cannot be started on other models.

【Precautions】
Please check the following contents before installation, and install it if you understand.

・ When using for the first time, you need to download this application.
･ Packet communication charges may apply when downloading or updating applications. Therefore, we strongly recommend using the packet flat-rate service.
* Packet communication charges are not incurred when downloading using the Wi-Fi function. (Download capacity: about 8.1MB)

▼ Compatible terminals
docomo: dtab d-41A