Develop Bugs

[How to fix] Windows 8/8.1/10 is not detecting my LG Gxxx device

Does this sound familiar?
Since updating to an Android Lollipop rom, my Windows PC / Laptop no longer detecting my device
Click to expand...
Click to collapse
This seems to work for most any device changing Android OS on their device
Disconnect your device from your PC/Laptop.
1
From your Device, disable USB Debugging found in Settings > Developer Options.
1
From your PC/Laptop go to Device Manager, click on View> Show Hidden Devices.
1
Double click Composite ADB Interface, click on Properties.
1
Click on the Driver tab and choose on Roll Back Driver. This will uninstall the problematic drivers.
Should 'Roll Back Driver' option be grayed out, click Uninstall.
1
In the confirmation pop up window, click the box marked "Delete the driver software for this device" and then click OK.
Repeat this step for all Composite ADB Interface' entries.
1
Shut down your PC/Laptop, then start again.
(IMPORTANT: Do not "Restart" from the shutdown menu, you must do a full shut down)
1
Once PC has fully rebooted, open device manager and keep it to the side.
1
Connect the device to your PC/Laptop. Your PC will recognize the device as a storage device.
1
From your device go back to Developer options and select USB Debugging.
1
Unplug the device, wait 15-20 seconds and reconnect. You should now see your device from you PC and Device Manager should now have a "Portable Devices" folder
1
Should 'Composite ADB Interface' show up again, repeat (4) and (5) to roll back the driver update.
Ƹ̵̡- It seems, using the universal driver is also a good suggestion. These can be downloaded here -Ʒ
LGUnitedMobileDriver Version 3.11
[URL="https://dl.dropboxusercontent.com/u/31151290/LGMobileDriver_WHQL_Ver_4.0.3.exe"]Newest version 4.03[/URL]​

try to reinstall your OS.
always works.

In my device manager there is no ACER.... When I connect my LG G3 (F400S) Android 4.4.2 version, nothing happens in the PC, nothing happens in the device manager (no refresh, no new drivers of LG or LGE), the phone just charges (nothing from the notifications as well). I have installed the LG drivers (latest from LG website), LG PC Suite, tried to connect from LG PC Suite, but the PC refuse to detect the phone. I tried with different USB cables, different USB ports and different PC with different windows (7, 8.1 and 10), absolutely nothing. More surprisingly, my friend has the LG G3 (D855) which he can connect and get detected by his laptop but mine does not in this laptop with his cable in the same USB port! I think the problem is with the phone itself even if it charges. Please HELP!!

@Mr Rus
Is this device new or did you purchase used?
Does the device charge? If so, how?
Has your LG G3 ever been connected to your PC/Laptop?
Do you hear any sound from your PC, when you connect the device via USB cable?

Hi,
1. The device was bought as used online. It said new on the website but by the look of it i know it is used (scratch at laser autofocus and screen not properly glued OR it is a defective one).
2. Yes it does charge with the charger. The one i got charged the phone 0 to 100 in 4 hours. So i use my tablet charger (5V, 2A) to charge the phone with another cable (about 2h and 15min from 0 to 100) as the cable which came with the phone also causes the slow charging. When connected to the PC the phone vibrates and charges. I can see the 'electric current' on the battery icon and on the lock screen I can see it says charging (%).
3. It is the first time i've connected the phone with my different PCs. First one i tried without the drivers installed then tried with driver and pc suite installed. In the second PC the driver was installed first then the phone was connected. No positive result.
4. No, no sound at all. But i remember that there was some android adb stuff in the device manager (maybe same to the ACER...), i uninstalled it without checking the box mentioned in your instructions unfortunately. Then i heard a sound when connecting the phone. And right after that another sound, in my taskbar it says unknown device and error (i forgot the error code). But nothing on my phone in the notifications, it just charges. Under USB controllers in my pc i could see Unknown usb composite device (something like that) with yellow exclamation mark. I googled and had this uninstalled. Since then no sound at all.
I cannot return the phone for exchange as the shipping cost would be too much for me to afford (about USD 70-90). I am waiting for a software update as maybe this will solve the problems. I am still with kit kat 4.4.2. But if this is a hardware issue, it would be difficult to solve this.
Also the USB OTG does not work.

Mr Rus said:
Hi,
1. The device was bought as used online. It said new on the website but by the look of it i know it is used (scratch at laser autofocus and screen not properly glued OR it is a defective one).
2. Yes it does charge with the charger. The one i got charged the phone 0 to 100 in 4 hours. So i use my tablet charger (5V, 2A) to charge the phone with another cable (about 2h and 15min from 0 to 100) as the cable which came with the phone also causes the slow charging. When connected to the PC the phone vibrates and charges. I can see the 'electric current' on the battery icon and on the lock screen I can see it says charging (%).
3. It is the first time i've connected the phone with my different PCs. First one i tried without the drivers installed then tried with driver and pc suite installed. In the second PC the driver was installed first then the phone was connected. No positive result.
4. No, no sound at all. But i remember that there was some android adb stuff in the device manager (maybe same to the ACER...), i uninstalled it without checking the box mentioned in your instructions unfortunately. Then i heard a sound when connecting the phone. And right after that another sound, in my taskbar it says unknown device and error (i forgot the error code). But nothing on my phone in the notifications, it just charges. Under USB controllers in my pc i could see Unknown usb composite device (something like that) with yellow exclamation mark. I googled and had this uninstalled. Since then no sound at all.
I cannot return the phone for exchange as the shipping cost would be too much for me to afford (about USD 70-90). I am waiting for a software update as maybe this will solve the problems. I am still with kit kat 4.4.2. But if this is a hardware issue, it would be difficult to solve this.
Also the USB OTG does not work.
Click to expand...
Click to collapse
I have the same problem...

Maybe you have some problems with usb
Maybe you have some problems with usb port. I use usb hubs in such situations. Somehow, gadget seamlessly connects to a PC via the the extraneous device. I found good reviews for usb hubs on topchoice.best, if you suddenly decide to take my advice.

Go to settings
Then PC Connection
Check to see if phone is set to MTP
Sent from my VS985 4G using XDA Free mobile app

xenevo said:
Go to settings
Then PC Connection
Check to see if phone is set to MTP
Sent from my VS985 4G using XDA Free mobile app
Click to expand...
Click to collapse
There is no PC connection setting, no MTP settings as well.

I am on a stock based rom.
If you are using aosp or cm based you might find the mtp in storage settings.
If the previous owner defaults the connection to charge only then windows will not detect the phone.
A friend of mine did the same and i found the setting to reset back to a mtp connection when plugged in with usb.
If i remember i had to hit the ellipsis button ... The three dots and it was in there. Sorry i am vague but it was a long time ago and i am stock based.
If somebody running aosp or cm can chime in and tell him where exactly that setting is that would be nice.
Otherwise goggle it.
Good luck my friend!
Sent from my VS985 4G using XDA Free mobile app

xenevo said:
I am on a stock based rom.
If you are using aosp or cm based you might find the mtp in storage settings.
If the previous owner defaults the connection to charge only then windows will not detect the phone.
A friend of mine did the same and i found the setting to reset back to a mtp connection when plugged in with usb.
If i remember i had to hit the ellipsis button ... The three dots and it was in there. Sorry i am vague but it was a long time ago and i am stock based.
If somebody running aosp or cm can chime in and tell him where exactly that setting is that would be nice.
Otherwise goggle it.
Good luck my friend!
Sent from my VS985 4G using XDA Free mobile app
Click to expand...
Click to collapse
Unfortunately there is no such setting. I am using the stock ROM from LG itself (android 4.4.2) and the only setting about PC connectivity is Share & connect --> LG PC Suite. There is not options for MTP even after connecting the phone. I know for my friend when he connect his, he get the notification to change to charge only, MTP etc from the notification bar, but mine nothing. I done factory reset so, I do not think that the default setting is still set to charge only. Tried everything for this issue :/

For a last resort you can try another usb cable and/or a different usb port. There are also apps on the play store that will do wifi direct.
Sent from my VS985 4G using XDA Free mobile app

Thanks bro. Good job.

@TonyStark, thanks for the job you have done, for us, but my friend's AT&T LG G3 does not connect to PC at all, i have tried many ways like 3845#*850# Post Setting > Diag Settings > USB Set for Diag && Settings > Diag Settings > USB Set for Diag, but still no luck, i have also installed LGUnitedMobileDriver which was also suggested by you on the first post, No Luck yet,
Edited: In the last i came to know that the USB jack or port of the G3 was badly damaged, hence, after knowing that i told my friend that he is luck because his devices is still charging with this port condition. And he went to the hardware shop happily
And you were pleased to shut down that thread, I don't know why? may be you were trying or looking to make something better than that but we lost a good hope.
Now please help me what can i do with it, it is running 4.4.2, any thing we want to do with it is failed due to no USB connection to the PC,
by the way, i know i can root it with kingoroot and install autoRec and than TWRP and can upgrade to Lollipop by the way of putting all material into SDCard but does updating solves the USB connection problem OR we will be in the same state. As far as Marshmallow is also landing soon so, I think my friend must not stay on kitkat, and lastly an LG G3 like wooping device may not live its all life without USB connection. Please help. Thanks

in device manager i cant find adb interface so i cant proceed

w1040 said:
in device manager i cant find adb interface so i cant proceed
Click to expand...
Click to collapse
I have this same problem. There is no Composite ADB Device in manager. I can't seem to find anything to give me any help. Can someone help us???

gonehaywire said:
I have this same problem. There is no Composite ADB Device in manager. I can't seem to find anything to give me any help. Can someone help us???
Click to expand...
Click to collapse
I have this same problem

how
you can use last version lg mobile driver

You can access the PC connection from your phone setting/storage/upper right corner option/USB PC Connection.
Then you will have 3 options of Charge tablet, Media sync (MTP), Send images (PTP)
Unfortunately even after I select MTP, my PC still can't detect my tablet LG G Pad 7.0 LTE

hi, thanks for sharing this info (new member here)

Phone not recognized by computer

Hey so i have been having a big problem recently. my htc one m8 32 gb verizon version doesnt get recognized by my computer. ive tried different computers, ports, and cables. i even got a new charging port and installed it but nothing. when i plug my phone into my pc, nothing pops up. the phone only charges but no option to transfer files. htc sync says no phone connected. Also have usb debugging enabled but nothing. running on 6.0 marshmallow and any help would be nice. Thanks!

If you look at your notifications, there will be one you can't clear saying USB Charging this device. Click on the notification and change it to File Transfer.

Couple comments:
1) Try the genuine HTC cable that came with the phone. I've noticed that some 3rd party cables will only charge, and not connect by USB/MTP. I assume the pin layout on those particular cables is not exactly the same as what HTC uses.
I know you probably already tried this (HTC cable) but this may at least narrow down the variables.
2) Assuming a Windows PC, go to device manager, find the phone (hopefully, its listed) then select the option to manually select a driver. Then pick the generic driver for "Android MTP device" (or something like that, forget the exact name). If often have to do this to get my home PC to "see" my M8 by USB. Although my work laptop doesn't have this issue. Your results will vary depending on your exact PC configuration, it can be very confusing and frustrating!

m8 problem
First sorry for bad English.
My M8 is not recognized by my computer. I've tried extra ports, cables, drivers .. Windows 7 64 bit is computer, android 6 is on the phone. Only the phone detects it is connected to a computer and offers the options, mtp, ptp, charging ...
What can I do?

[email protected] said:
My M8 is not recognized by my computer. I've tried extra ports, cables, drivers .. Windows 7 64 bit is computer, android 6 is on the phone. Only the phone detects it is connected to a computer and offers the options, mtp, ptp, charging ...
What can I do?
Click to expand...
Click to collapse
I don't see what the problem is. The PC recognizes the phone. Are you trying to access a function such as fastboot or adb, that is not working? You never say in your post what the problem is.

usb data not working after september update

USB cable only charges the phone when connected to computer. Tried the following
1. Using 2 different cables which previously worked for data but phone only shows charging.
2. Using pc and Mac and both does not see phone. Looked in device manager of windows but it nothing shows up. Both computer previously used for data transfer on this phone
3. Looking inside usb-c port but no lint or dirt. Although just before update to September security patch my phone has some water on the screen which I wiped off. And the phone does not show sign of problem other than no data transfer to computer
4. Factory reset phone and same thing
5. No notification shown for changing charging only to file transfer
6. Computer doesn't Bing when connected.
What else can I try? Anyone can help or confirm if their usb-c works after September update so I can narrow down to hard ware problem.
Anyone diagnosed this hardware problem before?

Do you have developer options enabled in settings? If you do go into networking/usb configuration and change that. If you don't you can enable it by going into about phone in settings and tapping the build number 7 times.

jd1639 said:
Do you have developer options enabled in settings? If you do go into networking/usb configuration and change that. If you don't you can enable it by going into about phone in settings and tapping the build number 7 times.
Click to expand...
Click to collapse
I tried changing the options to MTP, PTP, midi, charge only, etc but non of them make any difference to the computer, nothing pops up and does not show as new item connected in device manager

did you try changing from charging to mpt, and maybe back and forth, while the phone was connected to the pc? I have the same update on my 5x and mine is working fine.

jd1639 said:
did you try changing from charging to mpt, and maybe back and forth, while the phone was connected to the pc? I have the same update on my 5x and mine is working fine.
Click to expand...
Click to collapse
Tried changing when USB connected and when not. Doesn't seem to make a difference.

I'm not sure what to tell you. You could try flashing the firmware package prior to the sept update. You'll have to re-set up your phone, but if you've already done a factory reset it won't be worse than that. That could tell you if it's software or hardware

jd1639 said:
I'm not sure what to tell you. You could try flashing the firmware package prior to the sept update. You'll have to re-set up your phone, but if you've already done a factory reset it won't be worse than that. That could tell you if it's software or hardware
Click to expand...
Click to collapse
I don't know how I can flash a previous firmware if I don't have USB access.. it's really frustrating. Looking from ifixit. It does not seem there is any chip near usb-c other than voltage control.
Can't seem to find how I can look at logs to know if USB has been engaged or if there is any error message. It's all dead end and my phone seem to be the unique case.

Are you rooted and do you have chainfire's flashfire?
---------- Post added at 01:22 PM ---------- Previous post was at 01:07 PM ----------
I should have asked if USB was working before the sept update? I had a problem where the PC would recognize the device but couldn't run fastboot. This solved that problem but it sounds different than your issue
https://forum.xda-developers.com/nexus-5x/help/unlock-bootloader-fastboot-detecting-t3236946/page4

jd1639 said:
Are you rooted and do you have chainfire's flashfire?
---------- Post added at 01:22 PM ---------- Previous post was at 01:07 PM ----------
I should have asked if USB was working before the sept update? I had a problem where the PC would recognize the device but couldn't run fastboot. This solved that problem but it sounds different than your issue
https://forum.xda-developers.com/nexus-5x/help/unlock-bootloader-fastboot-detecting-t3236946/page4
Click to expand...
Click to collapse
USB worked fine, I am using it for Android studio, and transfered music across as well. Looked at the post and it seemed that has to do with device manager. Problem is mine does not show up any changes to device manager. I.e . No ADB or other device. Seemed like no data is exchanged and windows treating it like a battery or something

Any fix for this?
I've hit the same issue and wondering if anybody has a fix for this yet?
I'm using linux and seeing no usb activity at all from my nexus 5x after sep 17 update.
I've tried multiple cables. Cleaned the usb port on the phone. Multiple PCs.
I've connected to the phone using adb over tcpip and seeing nothing in logcat except battery logs when the usb cable is plugged in and out.
Turned usb debugging off and on.
I've set usb mode in developer options to mtp (it was on 'charging') and restarted the phone. Then find the option is forced back to 'charging.'
Logcat entries during boot show no failures in regards to usb connectivity.
Charging works fine but no data connectivity via usb at all.
Anyone got any other ideas?

Hello world.
I had the same issue.
To solve the problem :
- unlock developer mode
- switch on debug usb
regards
J.

I had this problem too- did not have to enable USB debugging though, just enabling the developer options fixed it for me. Which is odd because I definitely had them enabled previously... I guess a recent update reset that and for some reason all the USB data options are tied to developer mode now.

I've got 790 (american, as i know). The same issue, no response from service, guarantee, doesn't help, pc shows it as unknown device. some other bugs, mobile data fails, no sim detected after a few seconds, violet camera with no focus, but nice when the distance ia ok, so matrix works ok, but no stabilisation.
Then, bad battery, it seems that the bank ia ok, but controller works bad. it charges enough time to think that the capacity is not degraded. I suppose that usb controller (pc connection and fsat discharging) are nearby problems.

None of the above posts worked for me on my N5x (8.1.0 March), but searched some more and found this to work for me:
https://productforums.google.com/forum/#!topic/phone-by-google/DfpqXN1UfWY

Hello everyone. I'm just resurrecting this old thread so I can provide the solutions I have found to this problem. It appears this symptom has multiple causes, and there are different solutions depending on the cause. I have seen this problem twice now on my Nexus 5x (stock, no custom ROM) and solved it both times.
1. SOLUTION #1 - Messing with USB Configuration in Android
First time I encountered this problem, I did the following:
- USB Debugging was already enabled
- Enter USB Debugging menu
- Scroll down to "Select USB Configuration"
- Open this and select MTP, even if MTP was already selected. On my 5x, MTP was already selected, but selecting it again fixed whatever was broken, and the phone was immediately visible again in the Windows 10 interface when connected via USB.
2. SOLUTION #2 - ClockworldMod USB Driver was installed. Replace with Google driver
The second time I encountered this issue, the Solution #1 above did not work. Surprisingly, the adb devices command successfully detected the Nexus 5x. It's just that the phone wasn't showing up in the Windows 10 File Explorer interface.
The root cause of this problem was that I had installed the ClockWorldMod USB Driver because I was playing around with their Vysor App (on a different phone.)
BTW, I think the Vysor tool is really nifty for screen mirroring purposes!
To resolve the problem, I replaced the ClockWorldMod driver with the regular Google USB Driver.
(Sorry, XDA is not letting me post links because of my low post count. The link is:
h++ps://developer.android.com/studio/run/oem-usb.html )
The procedure is:
- Download the Google USB Driver from the link above and extract the ZIP.
- Enter the Windows Device manager
- Find 'Android ADB Composite Interface'
- Open the properties of 'Android ADB Composite Interface' and you will see it is from ClockWorldMod.
- Right click on this Interface and Select 'Update Driver'
- Click on 'Browse My Computer for Driver Software'
- Click on 'Let me pick from a list of available drivers on my computer'
- Click on 'Have Disk'
- Browse to the Google USB Driver you downloaded.
- Select that driver and load it on top of the ClockWorldMod driver. (Windows may claim that you've got the best driver already installed, but ignore that.)
After re-installing the Google driver, the Nexus 5x appeared immediately in the Windows 10 interface for file transfers.
Cheers, I hope this helps someone out!

I have the same problem with LineageOS 15.1, I am not sure since when, because I don't use USB that often, but I it must have been after the second update for 15.1. ADB and FASTBOOT don't work.
None of the suggested methods work. I am on Linux, but I also tested the USB driver solution on a windows PC.
The problem is, my phone does not trigger any response from the system I connect it to.
On Linux an lsusb/dmesg shows nothing, and on windows it doesn't make the classic "ding" when I connect something to the USB port.
It is like my phone isn't even there.
In the developer options under networking and USB, USB was set to charging only. I changed that to MTP, but it didn't help.
Now I can't change it back (not that I want to, but just saying). No matter what I press on this menu, it always stays on MTP.
I am here because of adb not connecting tho, MTP is not my concern anyways.
I am not sure what to do, format data, and wipe system etc. and go for a clean install? The problem is, when I boot into recovery, ADB and FASTBOOT don't work either, i.e. my computers don't see an USB connection. So will a wipe even help? I am scared I wipe my phone, and then I can't connect via ADB in TWRP.

Hello @ufopaper
Did you try to cleanup usb connector with a toothbrush and/or a soft plastic tool ?
Did you try different usb wire ? On multiple computers ?

tantalfr said:
Hello @ufopaper
Did you try to cleanup usb connector with a toothbrush and/or a soft plastic tool ?
Did you try different usb wire ? On multiple computers ?
Click to expand...
Click to collapse
I even bought a new cable, however, I didn't think about the toothbrush .. and yes, that was it
Thank you VERY much!

ufopaper said:
I even bought a new cable, however, I didn't think about the toothbrush .. and yes, that was it
Thank you VERY much!
Click to expand...
Click to collapse
Never underestimate the power of a toothbrush

Bamboo-Toolkit said:
1. SOLUTION #1 - Messing with USB Configuration in Android
First time I encountered this problem, I did the following:
- USB Debugging was already enabled
- Enter USB Debugging menu
- Scroll down to "Select USB Configuration"
- Open this and select MTP, even if MTP was already selected. On my 5x, MTP was already selected, but selecting it again fixed whatever was broken, and the phone was immediately visible again in the Windows 10 interface when connected via USB.
Click to expand...
Click to collapse
Amazing, this solved my problem. Thanks!

Nexus 5X not recognized on 2 PC's, 3rd one is working

Hi guys,
my 5X doesn't get recognized by my private Laptop or Desktop PC.
It's charging via USB but their is no "USB Connected" notification shown at the Nexus.
The device manager on both computers doesn't show anything related to the 5X.
Neither with installed drivers nor as unknown devices.
On my PC at work it's beeing recognized as expected.
But i don't have admin permission there, so adb etc. isn't an option and i want to upgrade manually from Marshmallow to Oreo.
Why maual upgrade? SuperSU, TWRP, ElemantalX, Aplify, BetterBatteryStaty, Xposed etc. is installed and will be installed in the future.
I also tried 3 different USB cables, one was new, so the cables shouldn't be the issue.
Do you have any idea?
I already tried google but didn't find anything related.
Thanks for your support!

Given that it works on one PC but not the other 2, I doubt this is your problem, but check the USB port on your phone for lint buildup. My 5X had a similar problem: it would charge via USB-C, but when plugging it into a computer, I never got the prompt on the phone to choose Charging, File Transfer, etc. Turns out that lint collects in the phone's port. Over time, plugging a connector into the phone compacts the lint, until eventually you have a hard layer of lint in the bottom of the port that prevents the connector from making full contact.
Grab something thin and non-conductive (a toothpick works) and gently dig around in the USB port on the phone and see if anything comes out.

In device manager do you have anything with a yellow ! Also, on the PC use the USB ports in the back of it, not ones on the front. It sounds like it, but have you installed android USB device drivers?
Sent from my [device_name] using XDA-Developers Legacy app

jd1639 said:
In device manager do you have anything with a yellow ! Also, on the PC use the USB ports in the back of it, not ones on the front. It sounds like it, but have you installed android USB device drivers?
Sent from my [device_name] using XDA-Developers Legacy app
Click to expand...
Click to collapse
In devices manager i don't have anything with a ! or ? for unknown or incompatible hardware.
I would assume that the google usb drivers are installed since i used adb and fastboot when setting up my 5X year(s) ago.
But since then i haven't used it anymore.
I don't get why my Nexus 5X doesn't even hint me that it's connected via usb?

leAndroid91 said:
In devices manager i don't have anything with a ! or ? for unknown or incompatible hardware.
I would assume that the google usb drivers are installed since i used adb and fastboot when setting up my 5X year(s) ago.
But since then i haven't used it anymore.
I don't get why my Nexus 5X doesn't even hint me that it's connected via usb?
Click to expand...
Click to collapse
I would try reinstalling the usb drivers. Is the device not recognized when booted into recovery and the bootloader?
Sent from my [device_name] using XDA-Developers Legacy app

No, my 5X is not recognized when in fastboot or recovery

This is a different problem but might help you. https://forum.xda-developers.com/showthread.php?t=3236946
Sent from my [device_name] using XDA-Developers Legacy app

FWIW, My Nexus 5x is not recognized in any of my PCs USB 2.0 ports nor my car with Android Auto. It is however recognized in my PCs USB 3.0 (blue) ports.

I don't know exactly wtf just happend but
1) i plugged in my old S4 and it got recognized as Android MTP devices
2) then put my 5X in bootloader mode and plugged it in -> not recognized, ran fastboot devices command -> no devices found
3) then i manually installed google bootloader driver and unplugged my 5X and plugged it in again -> device found eek wtf???
4) then i booted my 5X -> not recognized by Windows (no usb mode showed up on 5X), S4 still active as MTP device
5) i unistalled the current s4 driver
6) unplugged my s4, plugged it back in, it got installed automatically and detected as MTP device
7) i unplugged my 5X plugged it back in and wosh -> usb notification showed up at 5X and MPT etc. is working again
how ist that possible?
how can driver-stuff be so messed up, that the 5X doesn't even noticed it's plugged in on a computer.
i trid all usb-ports and several cables, so there is no hardware error.
the last PC still isn't working with my 5X

Pixel 2 XL not connecting to PC

UPDATE:
I ended up just returning the phone and getting a new one (it was an Ebay seller so they didn't try to repair it).
New one connected instantly and I can use ADB and Fastboot perfectly.
Definitely something wrong with the first one, weird how the headphone adapter and OTG worked though.
Original post:
I know there are other threads on this but I really need some help on this.
I just got a Pixel 2 XL, but it won't connect to the PC. At all. No connection noise, nothing in task manager. The only change between plugged and unplugged is that the phone starts charging. No notification appears when I plug it in, it doesn't even try to connect.
I've tried three different cables, three different PCs, I've fiddled with USB debugging. I can't do anything with drivers on Windows because nothing changes in device manager when I plug it in.
I don't have any computers with USB C ports so I can't test that but I've tried all different ports on my PC (USB 2 and USB 3).
The headphone adapter works and when I plug in my old HTC U11's earbuds it says "accessory not supported" (which it's supposed to say, those earbuds only work on specific phones) so the port can't be completely broken.
I also tried plugging a USB drive into the full size to C adapter that comes with it and it reads it perfectly. I copied my music library onto the Pixel by putting it on a flash drive first.
I realise it may just be defective but it would be a huge pain if I got a new one only to discover that it was something that I'm doing or my PC causing it. And is it even possible to be defective when it can output music and even transfer files from a flash drive through that same port?
What else can I try?

megaman1574 said:
I know there are other threads on this but I really need some help on this.
I just got a Pixel 2 XL, but it won't connect to the PC. At all. No connection noise, nothing in task manager. The only change between plugged and unplugged is that the phone starts charging. No notification appears when I plug it in, it doesn't even try to connect.
I've tried three different cables, three different PCs, I've fiddled with USB debugging. I can't do anything with drivers on Windows because nothing changes in task manager when I plug it in.
I don't have any computers with USB C ports so I can't test that but I've tried all different ports on my PC (USB 2 and USB 3).
The headphone adapter works and when I plug in my old HTC U11's earbuds it says "accessory not supported" (which it's supposed to say, those earbuds only work on specific phones) so the port can't be completely broken.
I also tried plugging a USB drive into the full size to C adapter that comes with it and it reads it perfectly. I copied my music library onto the Pixel by putting it on a flash drive first.
I realise it may just be defective but it would be a huge pain if I got a new one only to discover that it was something that I'm doing or my PC causing it. And is it even possible to be defective when it can output music and even transfer files from a flash drive through that same port?
What else can I try?
Click to expand...
Click to collapse
Which version of Windows are you trying it on? Can you try it on a Win 7 machine? It's not the phone but the drivers. There are various threads around that will guide you thru it but you have to search some. Some are a little old but they should work. Keep at it, you'll figure it out. There is something in device manager that you need to tinker with if I recall correctly. Happened to me on my Pixel OG and it took me a few days to finally figure it out. Total pain but relief once you get it.

If you have a relatively new computer (Win 7 or newer) then it *should* recognize the Pixel. But sometimes Windows can be a pain in the ass. Download & install Android SDK which will install the latest Android USB driver, reboot the computer, then connect the Pixel again.

sublimaze said:
If you have a relatively new computer (Win 7 or newer) then it *should* recognize the Pixel. But sometimes Windows can be a pain in the ass. Download & install Android SDK which will install the latest Android USB driver, reboot the computer, then connect the Pixel again.
Click to expand...
Click to collapse
I don't think I can install any drivers unless the phone shows up as something in device manager, which mine doesn't

megaman1574 said:
I don't think I can install any drivers unless the phone shows up as something in device manager, which mine doesn't
Click to expand...
Click to collapse
Your computer must have Android USB driver installed before it will recognize the phone.

sublimaze said:
Your computer must have Android USB driver installed before it will recognize the phone.
Click to expand...
Click to collapse
I'll search this in the morning. He needs to uninstall something.. dang it I forget. I'll figure it out tomorrow. Or search my posts from a year ago I'm sure it's there somewhere.
Sent from my Pixel 2 using XDA-Developers Legacy app

sublimaze said:
Your computer must have Android USB driver installed before it will recognize the phone.
Click to expand...
Click to collapse
What I mean is it doesn't show up at all. When I plug the phone in device manager doesn't change.

bobby janow said:
I'll search this in the morning. He needs to uninstall something.. dang it I forget. I'll figure it out tomorrow. Or search my posts from a year ago I'm sure it's there somewhere.
Sent from my Pixel 2 using XDA-Developers Legacy app
Click to expand...
Click to collapse
I had a look through your post history but I'm not sure what I'm looking for... And I can't figure out how to search a post history

megaman1574 said:
I had a look through your post history but I'm not sure what I'm looking for... And I can't figure out how to search a post history
Click to expand...
Click to collapse
Yeah I know, only goes back for like a year or so. This is the guide I followed and it worked. Some still had problems but check out the OP and give it a shot.
https://forum.xda-developers.com/pixel-xl/how-to/guide-fix-mtp-driver-windows-10-t3570625

This may be silly but when my phone was new I had the same issue. I had to go into the USB settings on my phone and change them from charging to file transfer.

I'm having similar issues to the OP, but I've had my phone since it was released. I have done everything known to man to try and get this working--updated Android Studio/drivers, both fixes listed HERE, tried numerous cables, rebooting phone and multiple PCs, still not getting my phone to get recognized at all.
My exact issue is this: I'm still on the August 2018 Security patch, so I wanted to update to October. Downloaded my files then went into Magisk and uninstalled (un-root) restoring stock boot. I waited a few hours before I could try to flash the OTA, but once I did, I connected the phone (USB-C to USB-C OEM cable) to my PC and it successfully connected in Debug mode. Ran "adb devices" and phone was seen. "adb reboot bootloader" successfully rebooted phone, but it did not go into bootloader mode for some reason, it just restarted in normal mode. The only problem is now the phone doesn't talk to my PC no matter what.... the USB-C to USB-C OEM cable doesn't even charge the phone let alone connect to give me file transfer options. If I try a USB-C to USB-A cable, the phone charges but the PC doesn't recognize my phone is connected. Debugging never works. Even my Car Charger (which is USB PD capable) doesn't charge the phone, I have to go back to my regular USB-C QuickCharge car adapter to get it to take a charger. I've disabled Debugging, changed default USB connection type to File Transfer, PTP, etc.
So, is there a way I can try to flash the OTA without connecting to a PC? Maybe even just flash the August Boot.img? I want to try updating the phone to see if that fixes my issues first. I am currently with an unlocked bootloader, no root and stock recovery, so I don't believe Flashify will work without getting root back... I think when I restored my stock Boot via Magisk, it FUBARed something. The only thing I can try is to use my USB-C to USB-A cable and see if fastboot recognizes the phone with that cable... the USB-C to USB-C cable is no dice in Fastboot.

Do you have another Android device? If so, (and it is rooted), you can run adb and fastboot from there. The binaries are available via the Magisk repository. Just grab a terminal emulator and a usb-otg cable and go to town. No driver issues, no fuss, no mess.
I was occasionally successful with a usb-c to usb-c cable, but sometimes the devices would get confused. The otg cable works every time, with the host end facing the adb/fastboot running device.

@hawkjm73 To whom are you talking to? If me, I don't have an OTG cable nor another rooted phone.
I did try the USB-A to USB-C cable and booted into Fastboot, which worked. I was able to at least boot into TWRP and get Magisk re-installed so I'm rooted. I booted the phone back up and still no USB recognition or Debugging. I'm going to wait to try a third PC to see if that will work in getting Debugging/ADB commands to work. All else fails, I'll just do a full Factory October flash without the wipe.
What's puzzling to me is why this all happened and why even my USB-C PD car charger won't work. Something strange is going on.
---------- Post added at 03:01 PM ---------- Previous post was at 02:25 PM ----------
Update: I grew impatient and decided that since my PC was seeing the phone in fastboot, I flashed the full October Firmware manually in fastboot (ran each command in the flash-all.bat one by one). As soon as it booted into the OS, Debugging and USB connectivity (both cables) turned back on. I haven't tested my Car USB PD charger, but I suspect that will work too.
I'm guessing when I uninstalled Magisk and tried restoring the stock Boot.img, something went awry and it was causing the connectivity issues.
So, if you can get your phone into Fastboot and your PC recognizes it, I would suggest a full system image flash, don't forget to remove the -w if you don't want to wipe.

megaman1574 said:
I know there are other threads on this but I really need some help on this.
I just got a Pixel 2 XL, but it won't connect to the PC. At all. No connection noise, nothing in task manager. The only change between plugged and unplugged is that the phone starts charging. No notification appears when I plug it in, it doesn't even try to connect.
I've tried three different cables, three different PCs, I've fiddled with USB debugging. I can't do anything with drivers on Windows because nothing changes in device manager when I plug it in.
I don't have any computers with USB C ports so I can't test that but I've tried all different ports on my PC (USB 2 and USB 3).
The headphone adapter works and when I plug in my old HTC U11's earbuds it says "accessory not supported" (which it's supposed to say, those earbuds only work on specific phones) so the port can't be completely broken.
I also tried plugging a USB drive into the full size to C adapter that comes with it and it reads it perfectly. I copied my music library onto the Pixel by putting it on a flash drive first.
I realise it may just be defective but it would be a huge pain if I got a new one only to discover that it was something that I'm doing or my PC causing it. And is it even possible to be defective when it can output music and even transfer files from a flash drive through that same port?
What else can I try?
Click to expand...
Click to collapse
Time for an RMA...just happened to me a month ago

WoJ... good follow-up update.

I ended up just returning the phone and getting a new one (it was an Ebay seller so they didn't try to repair it).
New one connected instantly and I can use ADB and Fastboot perfectly.
Definitely something wrong with the first one, weird how the headphone adapter and OTG worked though.