A pop-up message indicating “Checking new version availability.” will appear, as shown in the following images.

Scroll down to the bottom of the General Menu, and select the box next to “Check for Software Update”.

After the Internet conenction is established (see the ' ' symbol), tap the box to go back to the General Menu.

Enter the password of the access point with a virtual keyboard and select the box.

Find an access point and select the box.

Please refer to below video how to update your TZtouch software using the.

NavNet TZtouch's newest software version 3.12 includes some improvements. FURUNO sales and technical support for GPS chips & modules. Software version 2.05 contains files to update the 12-inch and 8-inch MFDs, black box MFD, radar, and both black box sounders, DFF1 and DFF3. The just released Furuno software update for the NavNet3D system adds several new features, improves a few others, and fixes one known issue. Select, then select the box next to “Wireless LAN Settings”.Press the button, then select in the upper left side of the screen.

If an older version of software is installed, or if you do not have an internet connection, software should be updated using an SD-Card. Procedures for Updating via the Internet If the TZT9/14/BB has software version 2.01 or higher already installed, and you have an Internet connection, follow the steps below for updating to software version 3.12.

Furuno software updates