Samsung SGH-T959 Installation Guide (user Manual) (ver.1.0) (English) - Page 2

2) Once the upgrade is complete, click on [OK] button. ※ Do not disconnect the mobile phone from PC while upgrade is in progress. Mobile Phone Emergency Recovery If you disrupt a mobile phone's connection while an upgrade is in progress, or an error occurs during an upgrade, your mobile phone may cease to work correctly. You can use Mobile Phone Emergency Recovery to recover your mobile phone from such failure. Running - Click on [Emergency Recovery] button at the bottom of the program. Performing a Mobile Phone Emergency Recovery 1) Follow the instructions to switch your mobile phone to recovery mode.  If you have multiple mobile phone models that have failed an upgrade attempt, check their model name, click on [Emergency Recovery] button and follow the instructions to switch the mobile phones to recovery mode. 2) Once the emergency recovery is complete, click on [OK] button. ※ Different mobile phone models have different ways of switching to recovery mode. ※ Do not disconnect the mobile phone from PC while recovery is in progress. ※ If your USB setting is "Samsung Kies" (not "Ask on connection") before you do firmware upgrade, you must select one of USB setting after firmware upgrade is done.