Do not use the router for possible reasons. Throw off the front patch. How router parameters are not saved

Priceless certificate

On the Internet, there are new instructions for the repair of any kind of radio equipment. The axis of only 90% can be replaced with one phrase: “opening the wind-blown capacitors-replacing-working”. When people are trying to paint the process on several sides. Seemingly, it would be shameful for me to write about such a repair.

Today, I want to tell you about the repair of Wi-Fi routers based on the products of the famous "people's" TP-LINK compiler. Most of the information is valid for Wi-Fi routers and other manufacturers. Why TP-LINK? So it already happened that I had a lot of faulty routers in the same manufacturer from the warranty service of one company. The company is small and is not going through the worst hours, so it was important for it to be unprofitable to hire an engineer and repair Wi-Fi routers, so the buyers turned for a guarantee. Possibly, from the worst point of view, the stench was correct. Such a situation dominated me even more.

Some models of routers, especially ADSL models, have a mesh part, Wi-Fi and a telephone circuit are wired on the same microcircuits. More cheap and popular Ethernet models, for example TL-WR740 (741), 720, 841, 3220 or so. on the board, all functions are controlled by one microcircuit - the processor. Even if the faults are more frequent or more frequent (break through the WAN port and / or LAN), but often, the repair of such a router is not worth it. The processor is soldered to the board with its own basis, contacts at the bottom of the two rows. The microcircuit of the processor costs from 5 to 10 dollars, a second-hand used router is sold for a little more than 10 dollars. Buying and replacing a processor is unprofitable, it’s easier to just use such a router or put it on the “organ” as a donor.

SO, do not forget that the router has been used up to you from the wrong hands, singly in the new change of Wi-Fi passwords and access to the admin panel. Therefore, before repairing, we will try to rob it of yoga at the factory installation. How tse robiti, I think you know.

It is possible to fix defects and it is significant what and how to repair, but what will not be possible. Let's make a table:

There seems to be an error, because the router does not start, or it starts, but there is no way to enter the admin panel.

On the board, instructed by the processor to solder the microcircuit operational memory. I don’t see the option of getting out of the way, because I have never been trawled by routers with faulty RAM and I don’t know how it is guaranteed to identify the fault. Shvidshe for all the router is not startuvatime. In quiet weather, if the processor did not start, I specifically identified the fret of the processor itself, warming up to a temperature of more than 100 degrees.

Now let's look at the differences, if the router is vantaged, it gives you the opportunity to get to the admin panel.

Variant of penetration (vigorilimy) LAN ports we have already looked at more. We don’t turn to them anymore.

It seems that there is an error, as the router starts up and it is possible to enter the admin panel.

Well, at once, trohi of pictures from signatures.

Such a typical router is in the middle. At the center - a processor, in the middle - a flash, a right-hander RAM.

Livoruch - processor, right flash memory.

Flash microcircuits from various manufacturers.

The axis is under the processor. Donechko soldered that contact in the 2nd row. Solder such a processor - more satisfied. Nі, zvichano, it is possible, ale chi varto?

The window of the programmer after erasing the flash microcircuit and rechecking. About programmer ta yoga software security I will tell you as if in a clear look, for that reason.

Antennas 5dBi different colors, change and none.

Uzgojuvalnі transformers. Zliva WAN, right hand two LAN.

And here it is, right-handed WAN (one more hand, soldered from the donor), 1 LAN

The axis is in the middle of the uzgozhuvalny transformer to the WAN port.

Soldering the transformer is awkward, but not so easy. The great risk of vismiknuti vysnovka and zipsuvati transformer or metalization opening the board. It is necessary to be careful and do not hurry. Behind the transformer, you can see the resistors. It’s rare, but oh well, that the stench comes out of harmony and goes into the urinal. It's easy to override them, but not much from soldering. Dzhe stinks dribnі and stand close to the transformer. Ale, nothing is impossible.

My know-how. Having soldered a socket into one test router, and now after soldering the transformer from the donor test yoga. Tse allows you to be convinced by the one who soldered a 100% correct transformer, without short-circuit turns. The transformer with short circuit turns to ring like a normal one, you can turn it over even if it is turned on at the right router.

The overturned transformer in the panel feels tight and sits tight.

And this is how the transformer of two LAN ports looks in the middle. Before the speech, the wine after the cієї razprav (trepanation) became a robot worker.

My love is wrong - the flush is dead. More precisely, on this board, there are no signs of it.

At the left lower kutka - vbudovana wifi antenna. It's marvelous, but to get 720 TP-Link out of it is even more disgraceful. Aje there is still a place where you can solder a normal antenna. That same router became a star and opened the Internet with such power that fencing cable zі stіn vityaguє…

On whom I will finish my little glance. I wrote yoga fast and troch chaotically. In advance, scho vin razrahovany on more-less prepared koristuvachiv. I specially report not rozhzhuyu deakі moments, but just show that it is necessary to work, prepare people to know how to fight, and not to get in the way if not prepared.

Zavdyaki to a wireless router chi router is able to connect the Internet to a number of computers. Also, through the new one, you can connect to the Internet for the help of other attachments - tablets, mobile phones etc. However, it turns out that the router does not work, but it does work, but it does not give a connection to the Internet, and at that moment, if you want to reverse it, it functions, for example, your store of children's toys. The troubles can be different, and the stench can also lead to different solutions.

If the router is not working, it is necessary to change the connection to the electrical connection. Poshkodzhenya contacts. For richer models, there is a button to increase / disable, perhaps the problem is in it. Also, you can get through those who have burned the block of life. Yogo is not easy to replace with a new one. If the problem is not in the new one and not in the contacts, if you happen to carry the router to the service - with your own hands you will not solve other problems.

We call for more power, even if the router is connected to the Internet. For the cob, it is necessary to reconsider the timing of paying for a special rahunka. If everything is wrong, the problem may lie in the fact that the installations are broken due to a voltage drop, or the router is connected to the network. Podіbne mozhe buti pov'yazane іz firmware. Like this trouble - often a manifestation, you can install new firmware. For re-lashing router varto consult with the provider, which is not the only one for all schemes to establish access.

Buvaє tak, that the router did not catch up with the connection with the Internet. To re-check it, you can turn it on for a few seconds in the mesh, then connect it again. Obov'yazkovo is necessary to establish respect for the establishment of a connection with your operating system. Possibly, you just have a disabled connection local lines. The problem can also be a firewall or an antivirus. As soon as the timchasovoy was turned on, everything was done, it is necessary to create a link for the connection. Also, access can be blocked by virus programs. In this case, it is necessary to scan the computer outside with an antivirus, but rather a kilkom.

For the elimination of such problems, it is recommended to buy these routers, as a provider. You will have fewer failures, because the firmware of the routers is sharpened by the provider. You can know the instruction fix the router on your own, in an extreme mood, having scrambled with telephone prompts to the call center of your provider. And then you won’t have any problems in order to have some kind of hour and whether or not I’ll build it up, how your online toy store functions, or whether it’s some other site.