- 6 -2. Set-up of BHTThis chapter explains how to set up the BHT efficiently and effectively.2.1. BHT Operations that Delete DataThe data stored in the BHT is deleted after the following operations. In order to ensure stable operations, the BHT must beset up to restore or recover the deleted data.Operation DescriptionSuspend/resume -Power OFF/ON Deletes information on an action in operation.Sypstem update(Upgrading vesion)Deletes information on an action in operation.System update(Downgrading version)Deletes information on an action in operation and setting of pre-installed applicationproduced by DENSO WAVE.Enterprise reset Delete information other than StartupSetting folders and SD cards for users.Data initialization Deletes information other than SD cards.Refer to the table below for data existence in memories when executing the above operations.Suspend/resumePowerOFF/ONSystemupdate(Upgradingversion)Systemupdate(Downgradingversion)Enterprise reset DatainitializationData in the microSD cardfolder✓ ✓ ✓ ✓ ✓ ✓Data in the Flash ✓ ✓ ✓ ✓ - -StartupSetting folder *3 ✓ ✓ ✓ ✓ ✓ -Pre-installed applicationproduced by DENSO WAVE✓ ✓ ✓ ✓ ✓ ✓Application to be installed byuser✓ ✓ ✓ ✓ -*2 -*2Setting of pre-installedapplication produced byDENSO WAVE✓ ✓ ✓ -*1 - -Setting of application to beinstalled by user✓ ✓ ✓ ✓ - -RAM (Information on anaction in operation)✓ - - - - -✓: Data retained–: Data erased*1 It is recommended to export the setting of functions that can be exported in advance and back up it .*2 It can be re-installed automatically using the BHT set-up supporting function. For details, refer to the next section and subsequent.*3 StartupSetting folder (Internal shared storage/StartupSettingsData/Startup) for user