A soldering iron is used to solder the spare elements on the green colored PCB (Printed Circuit Board) of the mobile phone. These soldered components may also get disconnected, lose contacts with the PCB or surely come out through the years. They can also come out due to surprise or jerk because of falling down. Hence you may want to solder the parts back again the use of a soldering iron. It is also referred to as soldering station through many phones restore technicians.

Soldering is a skill which you may study handiest with appropriate education as well as masses of practice. In Mobile phones, because the parts and their connections are small, you'll want to make yourself nicely versed with it. Soldering in Mobile phones is a touch more hard compared to doing it in LCDs, pc motherboards and laptops. You can discover ways to solder with the aid of even watching films but masses of practice are the important thing to grasp the art. I realize of many DIY kind of humans who've discovered the art with none formal training. You can practice on a few useless phones with the aid of desoldering after which resoldering the elements back.

The maximum common matters you may need to solder are:-

Charging port
Headset connector
Battery connecting
Power button
LCD (In some handsets, its soldered!)
And many extra spare components

In Chinese handsets, almost all part is soldered such as mic, speakers and loud speaker (ringer). I nevertheless do now not recognize the logic at the back of it however the maximum obvious motive 
may be to lessen charges!

You will need the soldering iron also to make jumpers if any of the tracks are damaged. This is accomplished handiest in case you are doing advanced maintenance at the motherboard. If you do no longer do advanced troubleshooting and do no longer repair circuit boards, you do no longer want to make jumpers.

Read: How to make jumpers in Mobile phone repairs


So how to use soldering iron in mobile phone maintenance

Clean the points on the PCB you need to solder with the soldering iron itself and cause them to flat.
Switch on the iron and preserve it on for round 2 minutes so that it ends up very warm.

If you are right-exceeded, keep the part which you have to solder with the left hand and solder it with the proper hand. If the component you want to solder is minute or small, you will want to maintain it with tweezers.

Take a few solder twine (as in keeping with your want) on the tip of the solder iron, positioned the component you need to solder and contact the factor wherein you need solder it. When you notice its caught properly, leave the end and do not flow something till the joint cools down and manually take a look at it. If it neither’s nor right, repeat it till it’s caught properly.

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