Not only can you view it as an instruction manual for "d-51C", but you can also directly start terminal settings from the explanation text for some functions, so you can use d-51C more conveniently.
This application is an instruction manual for d-51C (e Torisetsu), so it cannot be started on other models.

【Notes】
Please check the following before installation, and install after understanding.

・When using for the first time, it is necessary to download this application.
・Additional packet communication charges may apply when downloading and updating applications. For this reason, we strongly recommend using a packet flat-rate service.
* Packet communication charges do not apply when downloading using the Wi-Fi function.

▼Compatible devices
docomo: dtab d-51C