Instruction I:


1. First, press'n'hold the Power button until your phone turns off.

2. Second, turn the phone back on - press the Power button again.

3. You have completed the soft reset. Yeah, it is that easy.

Instruction II:

 

1. First, press'n'hold the Orange & R & Sym buttons for five seconds.

2. Next, enter Device Info, select  Phone Reset and Restart. Done!