After two weeks my jack did not work, back with Amazon, fast refund.
I bought one and with the same problem again after two months this time. I think that there is a fragility at the jack.
Besides considering the quality of service WIKO (see facebook page "The forgotten the SAV WIKO" or the forum of "what to choose") I think I'm not going to ruin my health with these people? Instead, I will buy myself a new laptop (but not Wiko this time)