No ring sometimes
please check whether you have setted your mobile in silent mode. If such cases happened when you use it normally, then please go to our network work shop to have it detected.
Please tell us why it is not useful/satisfied:
My problem was not resolved, need service
Product quality or performance
My question is not listed
There is no answer that I needed
The language and sentences are poor
Web page error or no link
5 ( Very satisfied)
4 ( Satisfied)
3 ( Neutral)
2 ( Dissatisfied)
1 ( Very Dissatisfied )
3. Please give us some suggestion.
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