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Galaxy S4 can be upgraded to the latest software.
This feature may not be available depending on the region or service provider.
Upgrading with Samsung Kies
Launch Samsung Kies and connect Galaxy S4 to the computer. Samsung Kies automatically recognises Galaxy S4 and shows available updates in a dialogue box, if any. Click the Update button in the dialogue box to start upgrading. Refer to the Samsung Kies help for details on how to upgrade.
- Do not turn off the computer or disconnect the USB cable while Galaxy S4 is upgrading.
- While upgrading Galaxy S4, do not connect other media devices to the computer. Doing so may interfere with the update process.
Upgrading over the air
Galaxy S4 can be directly upgraded to the latest software by the firmware over-the-air (FOTA) service.
On the Applications screen，tap Settings →More→About device →Software update → Update.