HTC S621 Guide De Logiciel

HTC S621 Software Installation 

 

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.