hello colleagues good evening everyone has come to the workshop today a tablet brand alcatel l216a its failing is that it does not light or charge and i have checked the battery and it has acceptable voltage so that i could switch on and check the charging pin for if i was open or failed but it is inbuenestado that advise me or that I step to assure to discover its fault

friend that happens is because the diode is short and you are knocking the voltages. change it.