Appendix/Index197❖CautionsWhen updating is performed, restoring the previoussoftware is not possible.When updating, the private information concerning theterminal (model, serial number, etc.) is automatically sent tothe server of DOCOMO. DOCOMO does not use the sentinformation for purposes except software update.When using packet communication via Xi/FOMA,communication charge for downloading is not applied.For update using packet communication, docomo nano UIMcard subscribed to docomo is required. For using packetcommunication, depending on the update contents,subscription to sp-mode may be required.Making/receiving calls, communications functions and otherfunctions are disabled during installation.During installation, all key operations become disabled andinstallation cannot be canceled on the way.After the updating is complete, the terminal restarts.When updating is performed, some settings may beinitialized. Make the settings again.When PIN code is set, the PIN code entry screen appears inthe reboot step after rewriting and you need to enter PINcode.If updating failed and all operations become disabled,please contact the terminal to DOCOMO-specified repairoffice.SMS sent during updating is stored in the SMS center.Updating may take time.Updating is unavailable in the following cases.- During a call- When the icon (out of service area) is displayed- Tethering in use as an access point- When date or time is not set correctly- When the remaining battery is not sufficient- When the terminal is low on available memory- When the basic software is altered- When s user/guest other than the owner uses the terminalUse Wi-Fi connection (with docomo nano UIM card notinserted) to perform updating during international roaming.Exit from all applications before installing.Update software when the terminal battery is fully charged.Do not turn off the terminal while updating.It is recommended that this terminal be put in a place withgood reception and not be moved while downloading. Theupdate may stop when it is put in a place with bad reception.When it does not need to update, "No upgrade is needed.Use it as it is." appears.For details about updating available period, refer to NTTDOCOMO website.