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Nokia 3310 mobile phone boot up and then, make phone calls, but display normal, not normal

Time£º2015-05-24 09:03:28  Source£ºNetwork  Author£ºUnknown  Clicks£º1198
  

According to the symptom, judge shows part of the problem. Remove the display, measuring voltage at the display interface, found VDD pin of 2.5V, below normal. Check the display interface, more humid, to clean the circuit board, power on properly, troubleshooting. After asking the owner was informed that water in, this machine was serviced, estimates are not cleaned and the original repair caused the fault.LTKservice manual download site