The Important Method for Judging Fault of Smartphone You cherish your smartphone, but you can't check and judge your smartphone' s fault. What a pity! When you judge the smartphone fault, in addition to the observation and testing methods, you can can also use the
cleaning
method,
repair
welding
method,
replacement method and flying line method. Now Vip Fix Shop Team will introduce you how to judge your smartphone quickly.
1. Cleaning Method  Smartphones have been in different environments for a long period of time, so sometimes the dust will
inevitably get into, and it is very easy to cause smartphone malfunction. At this time, we can use the cleaning method to clean internal contact reed and SIM card connection point, which easily lead to poor contact. More information: Cleaning method is a relatively simple, effective and common method of maintenance. Cleaning equipment mainly is detergents, such as alcohol. The smart phone' s contact piece, the contact reed and circuit board component pin are easily affected by the moisture, dust and corrosive gas, so it is easily to lead solder joint is oxidized or contacted badly. Tips: When using alcohol to clean smartphones, you should try to avoid contacting the smartphone LCD screen. If the LCD screen is dirty, you can clean it with a cleanroom wiper dipped in a little dedicated LCD screen cleaner. Alcohol is not allowed to be sprayed on the LCD screen. 2. Repair Welding Method Repair welding method is required to use the pointed
anti-static soldering iron or hot air welding gun to complete welding.  Smartphone has high failure rate because rosin joint. For example, smartphone can not boot or boot normal are caused due to the rosin joint. Therefore, we can perform welding repair on suspicious solder joints to eliminate faults.
3. Replacing Method  The replacing method mainly uses the same type of performance component to replace the suspicion point of the smartphone.  Tips: The replacing method is suitable for relatively
independent plug-in components in smartphone, such as display screen, keyboard, camera, battery, etc. And it is also suitable for welding parts which are easy to disassemble and operate, such as switch button, antenna, receiver, microphone and vibrator.
4. Flying Line Method  The flying line method is to use the jump wire to cross a component or a broken part of the smartphone to judge the fault or repair the fault.
Hoping you can benifit from it. More information can be found at Vip Fix Shop Team.