Power Panel Charger
Usual problems and repair mobile phones.
There is no doubt that dust is a major problem throughout the electronics, telephone cell is no exception. The warning "Store in a clean, safe and dry, free of moisture" in most electronic devices support and this rust corrossion point.Component due to the presence of dust and moisture from the air after Ladden broken circuit and reduce electronic wiring. The discomfort is well known by the engineer cellular phone repair and other repair electronin.
Once the cell phone is removed, the repair to start with the use of air heat from the fire station rework (lower welding) all components of the PCB in the case of lost contacts after the fall of the phone. Solution problems continue cleaning the PCB, including any other necessary part of the spirit methilated / volatile liquid. To dry, warm air air station heat is used.
It is noted that brushing should resolder pribeing complete. In most cases, is above all necessary Tobring the cell phone in question back to life.
The common problems of mobile phones are:
(!) Power problem
(2) Ringer problem
(3) Vibration problem
(4) piece ear problem
(5) keyboard problem
(6) Phone locked
(7) Telephone trigger
(8) nozzle problem
(9) mobile phone malfunction
(10) Network problem
(11) loading problem
(12) Screen problem
POWER PROBLEM: In this case, the mobile phone Topower refuse on. (1) Check battery voltage and ensure it meets with the manufacturer's specifications (usually 3.7 volts) (2) Check and clean the battery connector PCB Verify that the connection is not damaged. (3) Load aworking phone with the charger. If it instructs the phone but the phone does not turn the power switch could be responsible. (4) Check the power integrated circuits to burn, fuses and other components on the PCB can relate. (5) If all components are fine, the problem may be software. The phone can be flashed with the appropriate file
RINGrid PROBLEM:
(1) Go to setup menu and make sure the option is ringtone activated. Note that some mobile phones when the headset is connected to the phone, the speaker will not sound until you withdraw. (2) Go to profile and make sure that silence, the way of theft or online, and all that was the volume is not enabled. (3) Set the ringer volume. (4) Make sure the call is not diverted force is to take your calls to voicemail without ringing (5).
If this is OK, check the topic of the call continuity through the meter. If not already approved substitute for the ring. If this does not solve the problem, it might have the need for a software update. Flash the phone with the appropriate flash file.
VIBRATOR PROBLEM: (1) Make sure the vibrator is authorized by connecting it to the ends of a battery. If it vibrates, shpuld. (2) Ensure that the vibrator is activated in the setup menu. (3) Make sure the vibrator touch the PCB. (4) Check the path vibrator open circuit.
EAR PROBLEM: Make sure to contact the receiver PCB 0.92) Test the headset with a multimeter and make sure you are well. Put your headset to work to ensure that it is a good thing. You must also change the handset with a job to know where is the problem. Clean the PCB with a spirit methilated / Liquid volatile and brush your teeth after each soldering the components of the panels using a software problem if you suspect Station.Opposite rework all else fails. Flash Phone with the appropriate flash file.
PROBLEM nozzle (1) Test to ensure that the tip is allowed. (2) Make sure the nozzle to make contact with the panel. (3) Clean the panel and the nozzle to ensure they are free of dust. (4) Replace the nozzle with a job. (5) Check the nozzle way to ensure that no open circuit (6). Check the heating of audio / audio welding VA. (7) If all else fails, a suspected softwareproblem Flash the phone with the file proper flash.
KEYBOARD problem: (1) Make sure safety devices surethat place.You thereisno may need using code TheKey dissable. (2) ensure good contact with the keys of PCB. (3) Make sure the keyboard is not s are trapped. Must be able to move ie, freely bouncing up and down. (4) In some slide or flip phones, there may be need to remove the side scroll keys and / or nozzle to work. If the nozzle is responssible, replace. (5) Check the track on the keyboard to ensure there is open circuit.
Note: The following entry will address the common problems that remain to be bird's eye view of the problems copmmon software, how to address and deal briefly with the common problems not listed here that are experienced by phone users phones, including the proposed solutions. And before all, is to examine the ATA guidelines on how to repair the unit possibly radio, computer?, Video, TV, Pistol?, players, etc, which are now integrated into the cell phone to promote the market.
Note: This article is divided into four positions. You can read the full article at the blog above. This is the first post.
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