Hello. By chance I discovered a way to change the logo. From the main menu go to the OTHER option. Then to SHORTCUT. From the + sign generate a name, in Associated Application select CarMark Settings. And in Activity Associated with APP select carmarksettings and confirm the shortcut. Once generated, you have to look for it in the applications menu. Run it like any application. The next step is to generate a 2000x1200, 24-bit .bmp file. On a pendrive, create a folder with the name "mycar" and copy the bmp file into it. Once this step is completed, the image will appear available to be selected as the startup logo from the created shortcut.