In detail: do-it-yourself smartphone cable repair from a real master for the site my.housecope.com.
Are you familiar with the principle of connecting all moving parts to the printed circuit board in all modern mobile technologies? The connection of these elements is achieved using loops. In the course of continuous operation, this component may fail. How to fix the loop on the phone? Users without experience immediately panic and start looking for the nearest service center. But in the workshop, services cost quite a lot of money, and who likes unexpected costs? This article will help those users who have basic knowledge in working with modern technology. Today we will try to repair the cable with our own efforts.
Modern models of mobile phones are very quickly losing their former relevance, because they are being replaced by new versions of devices. Not every user is ready to give a large amount of money in order to acquire a brand new powerful smartphone. Components for such devices are not very expensive, but their installation is quite a costly undertaking.
Is it possible to repair the loop with your own hands? If you disassemble your gadget, you will see that the contact pads are attached directly to the display. On the reverse side of the case, these parts are attached to the printed circuit board in a certain sequence.
Important! In order to determine the malfunction, you need to get a brand new multimeter, in which an ohmmeter will be built in to measure resistance. In the same service centers, the connecting components are bent in opposite directions to identify a problematic contact.
Video (click to play).
If during the diagnostics other problems were revealed, we advise you to eliminate them at the same time. Perhaps, in this case, our other publications will be useful to you:
To carry out repairs at home, you need to notably prepare and find special materials and tools, such as:
Flat screwdriver.
Magnifying glass.
Needle.
Alcohol solution.
Sandpaper.
Soldering Station.
Thick polyethylene layer.
Adhesive tape and stranded MGTF cable.
Important! Before you start restoration work, think a few times. All manipulations are not particularly difficult if you have ever done something like this. If there is no absolute certainty of success, then we recommend that you still find a service center where qualified workers will take matters into their own hands.
In order to repair the phone cable, you need to follow these steps:
Remove the back cover of your device and remove the battery.
Now you need to unscrew the fixing screws using a flat screwdriver.
Remove the main PCB and the plastic cover under the screen. The last component is attached with double-sided tape.
Next, you need to look for a gap in any of the tracks. To do this, get rid of the insulation with a needle.
Important! Use a magnifying glass to make the process easier.
We take a soldering iron in our hands and wind a piece of copper wire around its tip. A component with low power parameters (somewhere around 20-25 watts) is best suited. We solder the remnants of the wire insulation.
The edge that has just been cleaned needs to be prepared for connection to the board.
Important! If for some reason several conductors were damaged at once, then we repeat the last manipulation for each of them.
If we have finished with the previous paragraph, then we proceed to the soldering itself.We solder the edges to the PCB and carefully examine the entire circuit for gaps between the tracks.
Pick up a thermal film or a layer of polyethylene, wrap the edges of the soldered cable with it at least in one layer. Warm up the whole thing until the moment you melt the film, thereby gluing it to the tape. An iron is perfect for this action, but you need to take into account that the whole procedure must be carried out with extreme caution.
It happens that the path breaks not at the edges, but in the very center. To fix this problem, it is best to duplicate this track using pieces of mounting conductor.
Now we assemble the mobile device in the reverse order and check it for operability.
Important! Also, you should know that the train can be made independently. To do this, lay the conductors on a layer of conventional medical plaster.
How to repair a phone cable in another way? Everything is very simple.
Restoration work can be carried out as follows:
First, grind a small amount of rosin to a powder state and dissolve in an alcohol solution. To create a solution, use a proportional ratio of one to six.
Now we pick up the good old Moment glue and glue the damaged area onto an insulated plate. Then you need to put this compound under the most ordinary technical microscope, which everyone used in biology classes at school.
Let's start removing the insulation. As a tool, you can use a scalpel or a small knife. We remove somewhere 1.5 mm of the wire at the place of the break. Next, you need to apply a little of the solution that was in the first paragraph to the tape section. Use a brush to apply the mixture. After applying, touch the tip of the soldering iron to this section of the cable.
Remove the varnish with a scalpel and carefully smear this piece with a solution of rosin and alcohol. Tin the conductor 25 mm from its edge and carefully solder it to the outermost track in relation to the outermost plume.
Important! For convenience, it is better to lift the wire in the middle above those parts that are damaged.
We bend the section of the wire that connects the two sides of the non-working track and bite off the excess parts that were formed during the work with wire cutters. It remains to solder the cable to the board.
If there is a need to “build up” the loop, then use another section of the loop with the corresponding geometric dimensions. Cut the component perpendicular to the damaged area.
We clean, connect and solder both halves. We isolate the sections of the wire that are bare and assemble the mobile phone in the reverse order.
