Control panel another software package depends on the softwarepackage that you removed, the other software packagemay stop working. Refer to the documentation of theinstalled software package for details.To view the list of software installations andremovals that have taken place, go to the Installationlog page. This list shows what software has beeninstalled and removed, and when that happened. If youencounter problems with the smartphone afterinstalling a software package, you can use this list tofind out which software package may be the cause ofthe problem. The information on this list may also helpto pinpoint problems that are caused by softwarepackages that are incompatible with each other.To configure installation settings, go to the Optionspage. Here you can select options related to softwareinstallation. Define the following:Delete files after installation: - If selected, the softwarepackage installation file will be deleted from thesmartphone after installation. If you downloadsoftware packages using the web browser, this may behelpful in reducing the amount of storage spacerequired. If you want to store the software package filefor possible reinstallation later on, either set thissoftware, the language version specified here will beinstalled.Software installation: - Define what kind of SIS installationsare allowed. Select On to allow all installations, Signedonly to only allow installations of SIS files with validsignature or certificate, or Off to prohibit all SISinstallations.BluetoothGo to Desk > Control panel > Bluetooth.See “Bluetooth connection” on page 132.Certificate managerGo to Desk > Control panel > Certificate manager.With the Certificate manager application you can managedigital certificates which you use when connecting to websites, mail servers, and when installing software. Digitalcertificates may be used for:• connecting to an online bank or another site or remoteserver for actions that involve transferring confidentialinformation