Your settings will reset to factory defaults. Recalibrate the probes.

Standard updates are performed using the front-panel USB port

Format your USB as FAT32. Copy the .upk and .bin files to the root. Then create a folder named dso2x1x and inside that, place the dso_UpgradeTool.exe (though this is for Windows, not the scope – you actually need the upgrade.tgz often included).