When you switch on the player, it should be set to Settings. Then you have to press OK. You must then select the Language menu (7th line from the top). There you can select the device language and confirm with OK. Press the Back button to return to the main menu.

Hi, so my daughter has the Musrun 64Gb. I've seen on the Internet that the box has several brands (I think one company sells the player to several companies).
The one sold here by Galaxus can be reset in the settings in: SET (gear wheel) then in the menu go to the last line (10/10) and there is the Factory settings function. This resets the settings but, above all, allows you to set the system languages. There are 28 on the one she has.
To change the language, go back to SET (cogwheel), then line 7/10 (language).

The language can be edited at any time under "Settings". >Settings > Language > English then OK and it worked