115Troubleshootingand ReferenceError MessagesNo. Message MeasureE00411 Update file not found. No update file could be found on the P2card or USB memory device.• Check whether the update file for thisunit has been correctly copied to theP2 card or USB memory device.• Reformat the P2 card or USB memorydevice before use.• Use another USB memory device.E00418E00461E00468E00410 Invalid update file found.The update file on the P2 card or USBmemory device is corrupted.• Check whether the update file for thisunit has been correctly copied to theP2 card or USB memory device.• Reformat the P2 card or USB memorydevice before use.• Use another USB memory device.E00413E00414E00415E00460E00463E00464E00465E00412 More than two update filesfound.Multiple update files were found on theP2 card or USB memory device.• Check whether there are multipleupdate files on the P2 card or USBmemory device.• Check whether there are multiple P2cards and/or USB memory devicescontaining update files.E00462E00419 This media cannot use forupdate.The used P2 card or USB memorydevice cannot be used for updating.• A P2 card with a \DATA folder cannotbe used for updating.• A USB memory device containing afolder other than the \WIDKEY foldercannot be used for updating.E00469E00420 Update file read error. An update file load error occurred.• Check whether the update file for thisunit has been correctly copied to theP2 card or USB memory device.• Reformat the P2 card or USB memorydevice before use.• Use another USB memory device.E00470