Cant make Lgv30 connect to pc - LG V30 Questions & Answers

It say unknown device when i plug the device in
What i tried:
- Reinstall adb and lg driver, try 3 version of lg driver (4.5, 4.1, 4.4), pretty sure i work fine because i can connect with my G7
- Try plug in another port, and i notice if i plug it to my USB Root Hub (3.0), it not get recognized, but if i plug it to a Generic USB 2.0 Hub, nothing happened, it only charging (no error appear and no device appear) - I used usbtreeview to see it
- Tried with different cable, and i bought new 2.0 cable, but it still not work
- Tried buy a 2.0 USB Hub, but it get the same error as i say above, the device just charging, nothing happen, no sound of new device plug or anything appear in device manager
- Tried change the mode of usb config to MTP, PTP , then connect each mode with usb 2.0, usb 3.0 port, same problems

your V30's usb port might be going bad.
try and see if cleaning it with a wooden toothpick helps. Don't use anything metallic or conducting

tech_infinity said:
your V30's usb port might be going bad.
try and see if cleaning it with a wooden toothpick helps. Don't use anything metallic or conducting
Click to expand...
Click to collapse
I will try it! Also do you know why it throw error at when connect to usb 3.0 port of pc but nothing happen with usb 2.0 port ? (just charging),
also when try some cord, i notice that if i use my lg g7 cable and samsung cordand charge directly, it not even charge, but if i use that cord and plug to pc, it does charge ._. , and if i use my oneplus 8 cord, it work for both charge directly and plug to pc, which is really weird since all of them is usb 2.0 cord i think

Related

[Q] USB Cable type for Sony Tablet - specific details

Hi everyone,
and thanks in advance for any help / advice that you may have for me.
I'll start off with my question, before I unload all of my information. I simply would like to know exactly what type of USB Connection the Sony Tablet has, and therefore, what specific USB Cable I need to buy in order to connect it to my PC running Vista.
I bought a Sony Tablet and have been surprised the lack of information in regards to the USB connectivity of the device. Specifically, the exact 'cable type' required to connect the device to a PC. Everywhere I have read so far, it simply says USB Micro, or USB 2.0 micro. But when I try use the micro USB cable that I currently use with my Xperia Play phone (which works fine for PC transfer with the phone) it's doesn't work at all with the Sony Tablet. It doesn't even register on the PC when I plug the cable into the tablet. Just nothing.
Since then, I have read a lot about USB, and found that there are different types, like 'Mini USB' versus 'Micro USB'. Apparently there is also Micro USB 'A' and Micro USB 'B'. And finally, apparently there is 4 pin micro usb and 5 pin micro usb type.
hope this all makes sense, many thanks guys.
Austab.
This tablet uses micro USB, I'm pretty sure the cable for your Xperia should work fine with the tablet. Perhaps you plugged it in upside down?
Thanks for the reply, I agree with your thought train. If it works with the Xperia, then surely it should work with tablet. I'll try it again after work today, and confirm. Is it actually possible to plug the cable in the wrong way around?
I'll kick myself if I did! Thanks again, cheers.
Austab.
It cannot be plugged in upside down, unless you use extreme force and break it.
***
But yeah, this cable *should work, if it works with your Xperia Play. In principle there is only one kind of micro-USB cable (well, actually it could have either regular type A *OR micro type A connector at one end, but let's keep it simple. Mini-USB is a different kind and A and B are just connector types.
See this picture with different USB connectors:
http://en.wikipedia.org/wiki/File:Types-usb_new.svg
Your cable should have a regular USB A connector (the one on the top left) at one end and micro-USB B connector at the other end (the one on the bottom right).
Yeah, it should work; I'm using the same USB cable that I use with my Xperia Arc.
For what it's worth, I've been having issues too. Mostly windows fails to find the drivers and install them. I've talked to multiple Sony reps and have tried multiple computers but haven't had any luck. Maybe it's a bad cable but I have had Windows detect the device...just unable to install the plug-n-play drivers.
Systems I've tried it on:
Custom built - Windows 7 with Service Pack 1
Dell - Windows XP Service Pack 3
Sony Vaio Laptop - Windows XP Service Pack 3
I had the same problem on both of tablet P and tablet S. I can tell you, its more about luck than the wrong cable type! At the end, it just works after retrying a few plugs and unplugs.
Hope they can get a fix for this soon.
Hey again guys, I've now tried the cable again with my Sony Tablet, and I'm definitely plugging it in correctly. There's no response whatsoever on the tablet or the PC once I've plugged the cable in.
When using the same cable on my Xperia play, the phone will instantly start charging once I plug the cable in to the PC. However, the PC doesn't actually recognize the phone as a device (i.e. it doesn't show up in windows explorer, or launch the Ericsson Phone Software, as it once did). It charges the phone, but doesn't talk to it, if that makes sense.
So it would seem that some Micro USB cables are good for charging only, but not for data transfer / PC recognition.
I'll buy a different cable tomorrow so will let you know if it works then.
Thanks again for all the replies guys I appreciate it.
cheers again,
Austab
Looks like the cable is faulty then and you have to try another one.
I bet one of data wires is broken, or a data contact inside connector is broken (worn down), because when you connect your Xperia Play it should also be recognized as a device.
Then again, maybe there is something wrong with your computer.
Can you try the same cable on another computer, and see if the device is recognized, before you buy a new cable. Or let them check the cable at the store to see if it really is faulty.
My understanding is you need an OTG USB cable, (On The Go) - this is what you need to connect USB keys and other hard-drives and so therefore I would think external PCs too.
I bought a nokia one for around 5 pounds from amazon, do a search for OTG USB cables,
thanks
Pratish
He wants to connect it to a computer, not connect external devices to it.
So he needs a regular micro-USB cable.
the cable is USB Host finde with this name
People, wtf are you talking?!
He *does not* need USB host (OTG) cable. That's for connecting USB devices, like keyboard, mouse, USB-storage etc., to your tablet.
He wants to connect his tablet to a computer. For that he needs a regular type A USB to type B micro-USB cable.
Hi,
Would seem like op had a charging cable, not data one. As stated, he need a regular data cable with appropriate connectors. OTG has nothing to do with it.
Sent from my HTC Desire using XDA App
Hi Crazzzik,
so you're saying that there are micro usb cables for charging only, and then there are micro usb cables for data + charging etc? That would explain things perfectly for me, as my cable seems to work for charging devices, but not communicating with a PC (i.e. data transfer).
I'm getting a new cable today - sorted!
Many thanks everyone for your help & advice
Austab
Yes when I got the cable for my sony tablet s, I saw several usb cables that would fit the tablet, but on the package it said specifically "for charging only, not meant for data transfer", so they do make the cabkes just for charging, as a PC tech, I was a little embarrassed that I just found this out this weekend.
Thanks
I also got a microUSB-cable adapter, it works fine with usb driver / joypad and keyboard
but not sure if it's capable for connecting with PC or even for charging
hello all,
I recently bought the usb cable for the tablet they sell at the sony store. The micro usb to female normal usb ( I think you know what im talking about). It is sony tablet specific. The micro usb end of the cable is square instead of tappered at one side. it worked fantastic for plugging in and usb deviced to the tablet, but when I tried to plug it into my galaxy s, it wouldn't fit. just thought those thinking of buying one would appreciate the heads up so its not a shock if they try to use it on any other devices. Im sure you can find that same cable at any well stocked computer shop.
i borrowed a htc wildfire s cable, this works and installs drivers.

How to USB cable and flash storage connect?

Hi,
Having just tried female to female usb connected to the oem usb cable by samsung, was hoping it will be able to connect and detect a flash or external drive but it did not.
So the question is this, since a usb is universal, would it be because of the oem cable or missing support from the kernel?
Even if power is supplied through, nothing was detected but power and it started to charge.
http://developer.android.com/guide/topics/connectivity/usb/host.html
Good to see that, as it should be handled by the o/s...
USB Host mode?
Seen a youtube video introduced a special usb dongle as an accessory which turns the microusb port into usb host mode and it will allow keyboard and various other devices to be connected.
Seems like it is not a usb host port on its own.
You need a USB cable that supports OTG. You can get one for a few bucks from Amazon. The kernel already supports attaching all kinds of USB devices, so just make sure you have the right cable.

USB Troubles

I have a P769 Tmobile running V20H
When I plug into a USB 2.0 port, the phone trickle charges, usb connects, etc, everything is fine. When I plug into one of my USB 3.0 ports however the phone just charges and doesn't connect. I want to be able to connect to a USB 3.0 port. I remember it did once, but I believe that was on an older ROM. Other phones connect to the USB 3.0 perfectly fine, so I don't think it's the PC's problem.
Does anyone know the solution to this?

OTG signals not detected; android shows no reaction whatever I connect

Hi,
I am new to these forums. I relcently installed cyanogenmod 13 and after that installed elementalX on nexus 7 2013 flo.
I have usb debugging on. I have installed stickmount.
I have enabled OTG + charge from kernel EK Manager.
I connected my Y OTG cable. Tablet can be charged but when I connect any usb device to usb interface of OTG cable nothing happens. I donot even get pop up on my device that something has been connected. Although if I connect anything, I can see it is getting power. As, I connected a usb hub which lights up and also connected easycap and the light on it also lit up. But I am confused as all my usb devices can get power but my tablet is not recognizing any hardware addition.
Also, is this cynogemod issue or kernel issue . I will consider fresh install if I know where the problem is.
thanks
Quote Edit
Solved: I was using angled adaptor which was not allowing otg to work.

General USB connectivity not working.

Yesterday I had my Mi 11 Lite delivered. After setting up the SIM card and so on, I tried to connect it to my Windows PC to copy the photographs that didn't migrate during the device transfer procedure.
Plugged it into the PC, it failed to appear in file manager. It started to charge, but wouldn't connect otherwise. Tried all the usual of setting the default USB, turning on USB debugging, nothing. Tried various different USB sockets, USB hub, nothing. Getting very frustrated, I was thinking I would return it for a refund. By this time it had downloaded an update and requested a restart. As it restarted, it was plugged into a USB port and once I unlocked it, hurrah! It connected. I then copied over the pictures. Happy days.
A little later I re-connected it to the PC and again, nothing. I installed the Xiaomi connection suite and it complained that there was no device connected. Eventually I installed Smartisan's wonderful Handshaker which creates a WiFi connection and copied over some files using it. I was still annoyed though. This morning I thought I would try connecting using my Laptop. No connection there either. I tried a USB OTG flash drive, it wouldn't work. Thinking I really would have to return the 'phone, I rebooted it. When it restarted, I plugged the USB OTG drive in and this time it appeared. Plugged the 'phone into the PC, nothing. Plugged the OTG drive back in, nothing again. Rebooted it once more, USB OTG worked. Thinking I was starting to go crazy, a thought suddenly struck me.
When I had plugged it into the PC the very first time, I had plugged it into a USB-C port on the PC. When it restarted, it was plugged into a USB-A socket as that was the last port I had tried. As the USB-A port had worked, I had then tried the USB-C port, which didn't work and after that nothing connected to the 'phone worked.
My PC is a Lenovo all in one which should allow use of the screen and keyboard to be shared with a mobile device when plugged into the PC's USB-C port. My guess is that the PC is trying to connect to the Mi 11 Lite, offering to share the screen and keyboard which then confuses the 'phone and blocks all access to the USB on the 'phone until it is rebooted. Since I have avoided using the USB-C port on the Lenovo PC to connect to the 'phone, it has worked perfectly well.
Steps to try if your 'phone won't connect to the PC:
Unplug all cables from the 'phone and reboot it.
Make sure that the USB-C cable is removed from the PC.
Plug a USB-A to USB-C cable into a USB-A port on the PC.
When the 'phone has restarted, unlock it.
Plug the USB-C end of the cable into the 'phone.
I should add that I have been using the USB-C port on the Lenovo for all my other 'phones, including a Mi Mix 2S, TCL 10, Carbon Mobile and a Teclast Tablet and all have been fine. Only the Mi 11 Lite has not worked as expected.
I hope this helps someone. It may just be something that is specific only to the Lenovo PC and the Mi 11 Lite 5G combination, but it has had me baffled for hours!
I have the same problem, I would try your solution but my Asus laptop doesn't have a USB-A but only 2 USB-C ports and no way it connects. It works ok with my pc which has an USB-A port.
So I think there's no solution for me?
Also I have another
I have an issue with Bluetooth, it doesn't automatically connect to paired devices like my car (most importantly), speaker or laptop. First I thought it was the car but since it doesn't auto connect to other devices it must be the phone(s)
I have searched for a solution on Internet but couldn't find a fix. BTW same problem on my Poco F2 pro and Oppo X2pro. All are global rom.
Has anyone a solution for this problem?

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