Why can I not change feet to meters?
The cause may be a normal setting, a stored profile or a compatible regional restriction. The exact model and software are needed to distinguish them.
Measurement units
If meters or Celsius cannot be selected, check the unit profile and regional status before changing firmware or resetting the display.
Start here
First open the normal units settings and check whether depth, distance, speed and temperature can be changed independently. A saved profile or an imported configuration can also retain imperial values.
On some compatible US/Canada-market devices, regional restrictions may prevent normal metric choices outside the original market. That possibility must be confirmed from the model and software, not guessed from feet alone.
Diagnosis
Record the current settings before a reset. Confirm the country of purchase, exact model suffix and software version. If the display also shows a regional warning, collect its GeoFence Request Code.
Different services
Changing measurement units does not install another interface language. A Regional Language Pack requires a compatible package and personal key. Russian-language installation follows a separate remote workflow.
FAQ
The cause may be a normal setting, a stored profile or a compatible regional restriction. The exact model and software are needed to distinguish them.
No. Do not diagnose by country of purchase alone.
Not if the restriction is regional, and a reset can remove useful settings.
No. Measurement units and interface language are separate settings.
Find why a Lowrance display may remain in feet or Fahrenheit and when regional restrictions can affect metric unit settings.