142BHT-1170BWB-CE / BHT-1171BWB-CE6.3 Using the BHT after Long PeriodsData including files and settings stored in the RAM may be lost and the calendar clock may stop if the BHT is leftunused for long periods of time.(Because the RAM will revert to the factory default, it is recommended that any important data be backed up to the“FLASH” folder or uploaded to the host computer. When the BHT turns ON after the data in the RAM is deleted, theBHT starts from the “Initial Setup”.)Take appropriate measures in accordance with the procedure below.− Point − *: Files may become corrupt if left for a long period of time without replacingthe battery.Insert a fully charged battery.* This is used for backup battery charge. Thereforeshould not be removed from the BHT for at least 2days.Does the normalscreen display?The BHT can be used.Charge promptly beforethe battery becomesfully depleted. (*)The normal screen doesnot display."Working" screen displaysfor long time.The “No system!” screendisplays."Working" screen displays for logtime after full reset.Perform a “full reset”.Refer to “Chapter 2 BHTPreparation” – “2.4 InitialSetup” or "2.6 Resettingand Full Resetting".YesNoYesNoThe following reasons may beconsidered. Contact the systemadministrator.• Hardware damage• Application failurePower ONCan the power beturned ON?