Hello!
Let's figure out what these legs are, what are the nickels and what to do with them. Pads are often called pads on the board, on which the legs of the elements are soldered. The 'pyataks' themselves are most often just a plate of copper or brass foil, which ends with a conductive track on the board.
Legs are the legs of the elements with which the element is soldered to the dimes.
In case of inaccurate use, which implies a strong mechanical impact, the element can come off the board, tearing out the very contact pad and making recovery either more problematic or impractical.
The complexity of the repair also depends on how exactly the tracks on the board go.
For such work, I use a binocular. But if you don't have a binocular, you can easily get by with a magnifying glass, since the elements are not so small.
Today we have a simple Chinese tablet under repair, which they very persistently wanted to charge and, without calculating the strength, pulled out the charging connector, as they say, 'with meat'.
It is not the fact of the damage itself that is surprising, but the fact that only two contact pads were damaged during such barbaric treatment. Lucky.
The owner of the tablet said that he turned to a couple of workshops and he was either answered that they could not do it, or they called the amount half the cost of the tablet. As a result, he gave the tablet to me for experiments for a symbolic 500 rubles. If all goes well, this tablet will make an excellent car navigator.
Well, let's revive.
Repairs
To do this, first estimate the scope of work.
Everything does not look very nice.
To begin with, we clean up the place of the upcoming soldering, removing all unnecessary, and see if it is realistic to restore contact. We are lucky, the track runs along the surface of the board, and it will not be difficult to get to it.
To begin with, we clean off the excess varnish, exposing the path to which we will be soldered.
After that, we need a thin wire, which will then act as a 'penny'.
I took a regular stranded wire and loosened it, pulling out one strand.
Photo of the resulting wire, which will have to work.
Wire versus fine sewing needle.
We tinkle the cleaned end of the track, and then we solder our vein so that its end is in the place of the lost penny. We do not cut off the excess, but fold it into a ring, creating a new platform. In fact, you can not do this, since the wiring itself is enough.
After that, we take a new connector, previously purchased in a spare parts store for as much as 23 rubles, and, securing it, we solder it.
Voila! Everything is ready.
Here I am forced to apologize and sprinkle ashes on my head, because for such a quality of work, I myself will gladly rip my hands out. A small excuse can only be that before the final soldering of the connector, my soldering iron burned out, spraying me with a huge sheaf of sparks and splashing the remnants of the molten case on the floor. Less than an hour was left before the article was submitted to 'print', and I had to make a soldering iron from a paper clip and a lighter, and finish what I had begun. This is an outrage and pornography will be redone in the very near future (it is disgusting to watch it yourself).
Due to the quality of the work done, and to atone for guilt, you will have to buy yourself such pants
One more point. which confused me – a native 2600 mAh battery. I think this will not be enough for the role of a navigator. Let's upgrade by installing a 4000 mAh battery. She breaks in here right next to it.
As a result, we have a reanimated tablet with an increased battery, which will now be a navigator. It remains only to remember which of the friends does not have a navigator in the car in order to make him happy with such an uncomplicated gift.
A few words instead of a conclusion
Many people prefer not to bother with such a repair, since in this case the cost of the time spent is too high in relation to the cost of the device. But if you do this for yourself, then why not. The main thing is to use high-quality soldering irons, do not neglect protection and always have a spare tool at hand. All unbreakable equipment!