Package Upgrades

Package Upgrade is the replacement of a package with its newer version to enhance functionalities or fix software defects.

Package upgrades are based on the following two scenarios:

• Packages that are installed on the data drive or the RAM drive can be upgraded directly by installing a SIS file of type SA , SP or PU .

• Packages that are installed on the ROM drive can be upgraded only by means of eclipsing . For details on how to upgrade package files on ROM, see Upgrading OS Components .

Orphan files that are not installed by an installation package can be overwritten only if the device creator has enabled the corresponding option ( AllowOrphanedOverwrite ) in the installation policy file.

• Upgrade Types