Just days after I reported that Toshiba was planning a patch for the Portégé G900, the update has been released. It addresses an issue where some Portégé G900s do not wake up once they have gone to sleep. Toshiba recommends that you only install the patch if you experienced this issue.
The update can be installed either from an SD card or from the phone memory itself.
Note: A hard reset is not required so if you perform one later, you will need to reapply the fix.