Why does the connection of the device depend on the usb cable?

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Daniil Smirnov2014-11-02 22:41:35

Electronics

Daniil Smirnov, 2014-11-02 22:41:35

Today, clearly, from my own experience, I saw the rule of the phone manufacturer: connect the device to the computer only using the original usb cable. I initially connected my lumia 820 device with a non-native cable to the usb-input, and then with an old, but original wire. And only in the second case the device was perceived. In this regard, I have a question: what is the difference between the original cable and the cable, for example, from another phone manufacturer?
Thank you in advance!

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5 answer(s)

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microphone, 2014-11-02
@antonsosnitzkij

USB has a strictly described standard, if there are deviations from the standard, it is no longer usb. 4 types of mom and dad.
There are manufacturers who build a microchip into the data cable, which can be used to distinguish how much the cable is "original". This exists to this day. I put the cap on the camera on the fact that the matter is in the wire.
Surely you will think about how to check. Try to change the wire (different micro usb wires) and poke into different computers (wires that already exist). It also happens that the socket is technologically so located that the standard wire is simply not plugged into the device (again, I can’t attribute this to your phone).

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Eddy_Em, 2014-11-02
@Eddy_Em

Because some consumers eat a decent current. And the "Chinese" wires are made so crappy and thin that they get a decent voltage drop, and the consumer does not receive his desired five volts.
I myself noticed that the microcontroller stubbornly does not want to work through the "Chinese" cable from the laptop (apparently, the current limit does not work for me there).
Still similar things can be observed when working with long wires. Let's say five meters.
PS And all sorts of unsightly manufacturers can make self-made USB connectors and stick a pull-up somewhere there. But this is already copying, it has nothing to do with physics.

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Nikolai, 2014-11-02
@j_wayne

Not exactly your case - but there is also poor resistance of noname cables to pickups. Faced somehow - the printer was not recognized by Windows. I took it home, plugged it in - everything is fine. Brought back - does not work. As it turned out later, the cable was not friendly with the old CRT 15 "monitor. I decided to buy a branded cable with ferrite rings. Speaking of ferrites, I dismantled one non-working cable (absolutely inoperable again) - the "ferrite" was made of plastic, with burrs)).
Conclusion - saving on cables is a bad idea.

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Ivan, 2014-11-04
@muller_johann

The current drops, yes. As an option, try to connect to a USB 3.0 port, there is a little more Ampere.

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Dim85, 2019-02-07
@Dim85

It’s better to take a cable with high-quality wires, and not quite a g ... During the time of use, I even made my own rating of the charging cables that I use. Or rather, even multi-cables, because they all come with 3-in-1 adapters - for Apple technology, Android devices, and Type C connectors. I put https://yadi.sk/d/_ZLKLUEjCAomzg in pdf on Yandex disk and https: //cloud.mail.ru/public/G3dM/eZ2BCfifH