This option was removed in a firmware update due to scaling issues that could result in some buttons and information being moved off the screen.
There is no way to re-enable the option if your HX-2 does not have it.
If your unit is using an older firmware version, it is possible to change the font size, but there may be some disadvantages to consider.
For instance, certain text like the estimated time of arrival (ETA) in in-road mode may get shifted partially or entirely off the screen, rendering it illegible.
Step 1:
You can change the font size on your HX-2 from the System settings menu. To access the System menu click on the System menu icon on the main screen.
Step 2:
When the System menu page loads, click on Display.
Step 3:
When the Display page loads, click on Advanced.
Step 4:
From the options that drop down click on Font size.
Step 5:
You can then select the font size you would like. If you move the slider all the way to the right it will then be the largest font size.
Step 6:
You will see an example of the changed font size on the left hand side. When you have selected the font size you would like click the back arrow on the bottom of the screen a few times to return to the main screen.
Step 7:
When your unit goes back to the main screen you should see the difference in font size but you can also enter one of the navigation modes and check the keyboard as well.
If the steps above do not resolve this issue, please contact our technical support team for further assistance.
You can submit at technical support ticket via our website at https://kb.hemamaps.com/kb-tickets/new