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HTC S621 Software Installation 

 

ROM update for the HTC S621 

1.

 

Download the ROM from the HTC America website.   

2.

 

Attach your USB cable to both your device and your PC.   

3.

 

Once your PC detects your device, double-click on the ROM file to launch the RUU (Rom Update Utility) 

Wizard.  

4.

 

Tap Next.   

 

 

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