Repair phone should have the following basic principles.

1 after the first cleaning service

  Many mobile phone failure , are due to poor working conditions caused by moisture or water intake , and is shown by the failure phenomenon is often more complex, and therefore , when the overhaul should first clean the circuit board , eliminating the pollution or water after failure caused , then other parts of hands for testing .

(2) within the initiative outside the machine

When the phone from a machine outside the overhaul began gradually to deep inside , that encounter to be repaired machine , you should first check whether the menu is artificially mixed up ; whether the battery properly, or monitor , deck, power contacts , keypad, antenna , etc. whether the problem. After confirming everything works correctly , then carefully observed. After analysis, it may be inferred confirmed case of a faulty part of the circuit , and then turn on the faulty parts may be "targeted" testing . This will help prevent blindness , reduce unnecessary losses , but also greatly improve the efficiency of maintenance .

3 after the first detection of welding

  Phone because of the particularity of its construction , has become one of its most common Weld a common problem , and as such , many people are relying on mobile phone repair a hot air gun and a heated iron " conquer the world " , plus welding, repair welding has become the forte of each mobile phone repair personnel. This is also from another side note , how important is the mobile phone repair welding technology . Especially Shuaiguo phone , according to the performance of its failure , there are parts of the fault destination weld welding and processing effects to sometimes play a bit with half the effort .

4 after the first static dynamic

  The so-called static , that is, the machine is not energized state , that is, in the case of cutting off the power first inspection. Such as sockets, Reed is good contact , without disconnection and poor welding machine , component or without burning black and discoloration. "Dynamic " means to be repaired machine is powered operating state , the dynamic checks must be necessary to check the static and the measurement can be carried out , must not blind energized , so to expand failure.

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