Hello, I've had the V20 for a number of months now and love the phone, but I never tested out a data connection before, only to find out that when I use both the LG cable and a Anker USB3.0 cable, my phone is not able to connect to any computer. The system prompt to select the MTP or PTP connection appears, but after making a selection and the computer seeing the phone for a split second, the connection is lost and the USB prompt appears rapidly over and over again. I even went into developer options and set MTP connection always.
I tried a reboot, battery pull and capacitor discharge, and a full system restore. No fix. The only work around I have now is a samba server or moving files with the SD card manually.
Please, if you have any ideas? Does not work in Windows and Linux.
Thank you.
Have you installed LG bridge?
Sent from my LG-H990 using Tapatalk
dbo989 said:
Hello, I've had the V20 for a number of months now and love the phone, but I never tested out a data connection before, only to find out that when I use both the LG cable and a Anker USB3.0 cable, my phone is not able to connect to any computer. The system prompt to select the MTP or PTP connection appears, but after making a selection and the computer seeing the phone for a split second, the connection is lost and the USB prompt appears rapidly over and over again. I even went into developer options and set MTP connection always.
I tried a reboot, battery pull and capacitor discharge, and a full system restore. No fix. The only work around I have now is a samba server or moving files with the SD card manually.
Please, if you have any ideas? Does not work in Windows and Linux.
Thank you.
Click to expand...
Click to collapse
Did you enable USB debugging in Developer options? If no, enable it.
Change the power settings in windows for the USB.
Power options
Advanced settings
Disable "USB selective suspend setting"
Tried all the above
Pierre118 said:
Did you enable USB debugging in Developer options? If no, enable it.
Click to expand...
Click to collapse
Yes, USB debugging works and I'm able to use ADB with my phone and both the Windows laptop and Linux Desktop. However, neither is able to reliably connect through the typical MTP and PTP methods. I finally got MTP to limitedly work with MTP when I use the LG supplied cable and ignore the USB connection prompt in Windows and Linux. I go straight to File Explorer and access the file directory of the phone. Every time I open a folder or access a file though, the phone rapidly pops up the USB connection message over and over while the file moves.
All third party cables and USB devices are not working other than just charging. In Linux, the error message in my logs is:
usbfs: process 20678 (mtp.so) did not claim interface 0 before use
reset high-speed USB device number 101 using xhci_hcd
dbo989 said:
Yes, USB debugging works and I'm able to use ADB with my phone and both the Windows laptop and Linux Desktop. However, neither is able to reliably connect through the typical MTP and PTP methods. I finally got MTP to limitedly work with MTP when I use the LG supplied cable and ignore the USB connection prompt in Windows and Linux. I go straight to File Explorer and access the file directory of the phone. Every time I open a folder or access a file though, the phone rapidly pops up the USB connection message over and over while the file moves.
All third party cables and USB devices are not working other than just charging. In Linux, the error message in my logs is:
usbfs: process 20678 (mtp.so) did not claim interface 0 before use
reset high-speed USB device number 101 using xhci_hcd
Click to expand...
Click to collapse
Is this behaviour on accessing and copying? You can not copy a file from your Windows laptop to the phone?
Yes, I cannot open folder directories, nor move files from phone to computer or visa versa.
Also. Try to not let the phone screen turn off. Change display time to 15 minutes or something.. Change back when finished. GL
kaluna00 said:
Also. Try to not let the phone screen turn off. Change display time to 15 minutes or something.. Change back when finished. GL
Click to expand...
Click to collapse
No change.
dbo989, did you resolve this issue? By any chance are you running avast mobile security? I was able to transfer files both ways via USB and had the pull down USB options without ever having to add USB debugging. Then I installed AVAST and USB has become charge only... none of the widely recommended solutions above will unlock USB. I see no apparent settings in AVAST so I will call them. If no resolution then I will trash Avast
bcapollo said:
dbo989, did you resolve this issue? By any chance are you running avast mobile security? I was able to transfer files both ways via USB and had the pull down USB options without ever having to add USB debugging. Then I installed AVAST and USB has become charge only... none of the widely recommended solutions above will unlock USB. I see no apparent settings in AVAST so I will call them. If no resolution then I will trash Avast
Click to expand...
Click to collapse
No, I never could resolve it. I ended up using Samba to fileshare with home computer, but lost any OTG cable ability. Never used antivirus or security software with my phone.
dbo989 said:
No, I never could resolve it. I ended up using Samba to fileshare with home computer, but lost any OTG cable ability. Never used antivirus or security software with my phone.
Click to expand...
Click to collapse
Just fixed it... turned out to be the port on my PC, I switched ports and its back as it was, no need to enable dev mode or USB debug... its still slow connection... I have to look up Samba solution, never used it.
Thanks for sharing
I just experienced the same problem with the USB connection constantly cycling between being plugged in and not. Windows kept alternating between the device connected and disconnected system sounds. I unplugged the USB 3.0 to USB-C cable on both ends, unkinked and straightened it, and plugged the cable back into the PC and the phone. Hasn't made another peep for the last half hour and the phone is staying in USB file transfer mode. I wiggled the cable at the phone end and still no further disconnections. Maybe I didn't connect the cable securely at the PC end the first time.
This is the first time this has happened since I started setting up the phone this week, so I don't know what to make of it. Regardless, I need to order some more USB-A to USB-C cables since this is my only one.
USB File Transfer Issue - Resolved
Hi, I had the exact same issue with the computer not seeing the phone as far as files. I was still able to use ADB, Fastboot, etc, so I figure it was not a hardware problem. Tried two different computers as well. Every time I selected "File Transfer" in the USB settings, the phone would beep, and when connected to the computer, the computer made the usual chime. The phone would not show up in explorer still.
Previously this phone had been rooted, but I wanted to bring it back to stock. I had flashed the latest KDZ file. Then using ADB and Fastboot locked the bootloader. It seems that the USB issue happened after that. Here is what finally fixed it:
Turned on developer options the usual way (tapping build number in software info) and then turned off "Allow OEM Unlock." Then I turned off developer options. Still, no luck, so I then re-flashed the latest KDZ (H91820h) again, but this time with the bootloader locked.
After everything was done, I set the phone up again, and now file transfer works perfectly.
I did not want to chance locking the bootloader while the phone was still rooted. I learned the hard way about that, and nearly bricked the phone once before. Luckily I still had factory upload saved in the LAF partition.
Hope this helps someone out there.
Turns out it was not fixed permanently
lighttech said:
Hi, I had the exact same issue with the computer not seeing the phone as far as files. I was still able to use ADB, Fastboot, etc, so I figure it was not a hardware problem. Tried two different computers as well. Every time I selected "File Transfer" in the USB settings, the phone would beep, and when connected to the computer, the computer made the usual chime. The phone would not show up in explorer still.
Previously this phone had been rooted, but I wanted to bring it back to stock. I had flashed the latest KDZ file. Then using ADB and Fastboot locked the bootloader. It seems that the USB issue happened after that. Here is what finally fixed it:
Turned on developer options the usual way (tapping build number in software info) and then turned off "Allow OEM Unlock." Then I turned off developer options. Still, no luck, so I then re-flashed the latest KDZ (H91820h) again, but this time with the bootloader locked.
After everything was done, I set the phone up again, and now file transfer works perfectly.
I did not want to chance locking the bootloader while the phone was still rooted. I learned the hard way about that, and nearly bricked the phone once before. Luckily I still had factory upload saved in the LAF partition.
Hope this helps someone out there.
Click to expand...
Click to collapse
After thinking it was in fact fixed, I rebooted the phone several times, turned off, then on, and all seemed well. Until the next morning. I turned it on, and the same issue happened again. No File Transfer mode to computer. ADB still worked. After being on for a while and getting warm, all of a sudden file transfer started working again. Rebooted, and turned on and off, and it continued to work. I figure its a bad part with a thermal issue somewhere so I put it in the freezer for 5 minutes. When booted up again, the same problem occurred until the phone warmed up. Weird? So I tried something completely different. I downgraded the phone to H91810p and tested again. It seemed to work fine. I put it in the freezer again, and the problem will not show itself. For whatever strange reason the problem appears to be heat related, and ONLY happens with the latest KDZ, Oreo 8.0 The only thing that I can theorize is that the SOC is bad, or there is a bad area of flash memory that is intermittent.
Does anyone have any clues? I am going to put it back in the freezer, go to work, and test again when I get home to confirm.
Craig
Related
so i thought i'd give vista's "windows mobile device center" a try on my vista laptop, and wasn't surprised to find that i couldn't get it to recognize my phone. i was surprised to find that the xp computer that i've been using with activesync for a long time suddenly stopped recognizing my phone as well.
up to now i've hard reset phone (dcd 3.04, 3.37 radio) and reinstalled activesync 4.5. no dice. please if anyone can help me troubleshoot this thing i'd be way grateful. why has my phone stopped communicating with my computers?
For WM 6 devices, on Vista you must upgrade to Windows Mobile Device Center 6.1.
i downloaded and used 6.1 on my vista machine, but it didn't work. any other ideas? i think there may be something that changed on the phone, because now, activesync won't work either...
...bytheway, the phone will charge when plugged into either, but that's about it.
...bytheway, the phone will charge when plugged into either, but that's about it.
Click to expand...
Click to collapse
Just for ****s and giggles, have you tried the following:
1. Using a different usb port
2. Blowing the dust out of the port on the phone
3. Using the Y adapter that came with the phone in between the sync cable and the phone
First, plug into the USB, wait for the Windows new device chime, see if anything occurs in the WM Activesync.. If no Activesync connection is made (after the 'connecting' has stopped) then unplug and plug in back in another USB port. Do that at least 4 times (cycling between ports...even the same may eventually work) to see if you have a success.
Restart your PC, Soft-rest your phone and try again.
If still nothing, then don't bother plugging your phone in and then Run As An Administrator the attached batch file and then under View 'Show Hidden Devices.' You'll now see all devices that have ever been installed and retained for your OS, with the faded devices as those not currently attached/active.
Rather than the batch file you can open up a Command Promp Window with Administrator access (Start\Programs\Accessories\Right Click on Command Prompt and Run As An Administrator)
(I usually keep that batch file accessible in the root of my OS partition, just to keep it easy to clean out legacy device drivers that can cause problems.[/i])
Enter:
set devmgr_show_nonpresent_devices=1
start devmgmt.msc
Uninstall
Network adapters\Microsoft Windows Remote Adapter
Portable Devices\PocketPC
Then under Programs & Settings uninstall the Windows Mobile Device Center upgrade, and then reboot your PC. Reinstal that Device Center 6.1 update and then again connect your phone with the USB. (for the XP machine you can do all of the and unistall/reboot/reinstall the ActiveSync 4.5.
(note to self or another.....these steps to be added to the Wiki for ActiveSyn issues)
well, i'm thinking that the "****s and giggles" have it. i blew into the port, plugged her in, and it connected to my xp machine, just like days of old. after about 3 minutes though, the connection dropped, and i've not been able to get it going again since. i think this rules out any software/settings problem, and looks like it's a hardware issue. i'll try cleaning it one more time a little later, and if no go, i'll have to figure a way to re-flash the stock rom (i only have a 6gb card...) and send the beast back. thanx for the input, guys (specially keystone, dang man that was one badass post with some instructions that will help someone, i'm sure.)
Do you have the Y adapter that came with the phone? The one with the audio jack and the 5 pin mini usb on one end and the 11 pin mini usb on the other? The reason I ask is because for some reason HTC decided to put an 11 pin mini usb connector on our phones, yet supply us with a data cable that's standard 5 pin mini usb. If you have it, just humor me and try it and see if it keeps the connection.
Oh and P.S....the "****s and giggles" wasn't just a shot in the dark. I've solved many activesync problems for people before using all 3.
I actually hadn't used the cord without the Y-adapter untill today. both ways yeild the same result.
Another Activesync problem
I've been on vacation the last week and while away i had to do a clear storage..anyway, my phone was fine but when i connect thru activesync i get an error code : 85010014 and my contacts list doesnt get updated...:S can anyone out there give me some advice or do i hafto start from scratch?
Also is there a way to find my contacts on my comp?
jinx01 said:
so i thought i'd give vista's "windows mobile device center" a try on my vista laptop, and wasn't surprised to find that i couldn't get it to recognize my phone. i was surprised to find that the xp computer that i've been using with activesync for a long time suddenly stopped recognizing my phone as well.
up to now i've hard reset phone (dcd 3.04, 3.37 radio) and reinstalled activesync 4.5. no dice. please if anyone can help me troubleshoot this thing i'd be way grateful. why has my phone stopped communicating with my computers?
Click to expand...
Click to collapse
Well the hoop jumping is fun and all but I think if you uncheck the "Enabe advanced network functionality" in Start > Settings > Connection > USB to PC it may help.
Damn! That was simple. I unchecked the "Enabe advanced network functionality" box and I'm up and running! I'll save the hoops for later. Thanks!
treeboy said:
Well the hoop jumping is fun and all but I think if you uncheck the "Enabe advanced network functionality" in Start > Settings > Connection > USB to PC it may help.
Click to expand...
Click to collapse
This is the fix almost 90% of the time......
treeboy said:
Well the hoop jumping is fun and all but I think if you uncheck the "Enabe advanced network functionality" in Start > Settings > Connection > USB to PC it may help.
Click to expand...
Click to collapse
Worked for me. Thanks!
ok ive tried all except the hidden devices thing (gonna try it now) and no go will post if it works oh im on DCD's 3.2.6 rom and the 6.1 of device center and i dont think it has anything to do with it but i just installed 2007 outlook
treeboy said:
Well the hoop jumping is fun and all but I think if you uncheck the "Enabe advanced network functionality" in Start > Settings > Connection > USB to PC it may help.
Click to expand...
Click to collapse
Hi, thanks that work for me fine too
my mogul has been giving me crap with vista and xp for weeks. Nothing can solve it. I've re-flashed, downgraded, used different ports, different cables, modified the USB to PC settings.
Add this to the list of things that randomly seem to be a problem for this phone.
I had a similar situation, none of the software based suggestions fixed it. Wiggling the cord around would sometimes connect, but soon thereafter, my phone stopped charging. The USB port was the culprit, so be careful.
I'm sure everyone who was having troubles figured out solutions, just thought I'd add in my dealings with this.
I just had the phone activated today (yes I bought used) and brought it to work to sync with my work outlook, well the usb cord would charge the phone but give me nothing but errors in the way of actual data connection. I was a little bummed this afternoon thinking I bought a partially broken phone. But WHILE HAVING THE PHONE CONNECTED ( I bold because I had done this multiple times while not connected and had no results) I opened the Comm Manager and clicked on the sync button at the bottom, suddenly my computer could recognize my device and I was sync'ing like a mad man.
Very possibly a stupid thing I should have done from the start, but I don't know any better since I'm brand new to all of this. I only post in hopes of helping another bummed out soul as was myself
I an running a HTC TyTN-II 4550 phone (WinMo 6.1) on a desktop PC (WinXP).
I couldn't get Activesync 4.5 to work either, but there were obvious reasons--my version of Office 2000 isn't supported (2003 is the earliest, I think) and IE and Outlook are not set as my default mail clients (-and that's how I like it-).
I didn't really need Activesync but I did want to be able to get files on and off the phone from my desktop PC through the USB cable. When I'd connect the phone, Activesync would automatically start up and spin the little logo for a while and then say "connection couldn't be made" and then I couldn't do anything--even move files on and off the phone.
What I found works is this:
1) open the Task Manager, and kill the wcescomm.exe process.
2) navigate to the folder that Activesync is installed in, and run the file named WCESMgr.exe.
3) that will popup a window, asking if you want to sync, or cancel. Press [cancel]
4) the normal Activesync window will come up, and the choices for "Sync" and "Schedule" will be greyed out, but the "Explore" button should work.
Sometimes I can disconnect and reconnect the phone without going through steps #1-#4, but not always.
With the "Explore" window you can drag files on and off the device.
I tried dragging small Word and Excel docs on and off; both converted properly when dragged onto the phone, but only the Word file would convert again when dragged off.
The phone will access the internet through the USB when hooked up this way, also.
I've never had the need to use WMWifiRouter as a 3G to USB connection, but my modem at home is dead and won't be replaced until Tuesday. 3 days is quite a ways to go without Internet! So, I used WMWifiRouter 1.51 to enable the 3G to USB connection for my desktop PC.
After I was done with the 'net, I turned off WMWifiRouter and unplugged my phone. I then realized I needed to upload a few things on my phone, so I plug it back in to use it as a storage device. Problem is, my computer immediately detects my phone as a tether rather than the storage device. I've enabled the option so my phone asks me what type of connection it wants to create, but my computer keeps forcing the tether instead.
I know it's the way my computer is seeing my Touch Pro 2, but I was hoping somebody else may have run into the same issue before and found a resolution.
Thanks in advance!
I just used WM last night as a test, and then finally sync'd up my outlook 2000 contacts and calendar today.
Are you absolutely sure that WM has stopped running? I know on my diamond, the task manager option would NOT show some running apps after it was running without a soft reboot for like 2 months.
I haven't tried a "storage connect" yet though, I don't think I've ever used that.
I am absolutely positive it has stopped running completely. I used the built-in task manager with SKTools to verify. Even after a soft reset on my phone, my computer still does it.
Like I said, I know it's just the way my computer is now detecting my phone, but I was hoping somebody here had the same problem in the past.
I find it a little funny... I used my phone as a temporary solution to not having internet at home and now it only leads to more problems
Try uninstalling the drivers that your computer installed for the TP2, it would be in the Control Panel->Device Manager . Honestly i have no clue which one they would be but by doing this your computer will have to reinstall the USB drivers for your phone and re-recognize your phone.
Tried it. My computer installed it as a modem, but uninstalling the drivers didn't help. My comptuer would still detect it every time and reinstall the modem drivers.
Hard resetting my phone fixed this. It's the worst solution, yes, but it still worked. Fortunately, it only takes about 20 minutes to get everything back in order once more.
Thanks for the help anyways.
UPDATE: Ran into the same problem again last night. Fortunately, I found a better solution.
I made the USB to PC connection automatically connect to ActiveSync and disabled "Enable faster data synchonization." Disconnected and reconnected my phone and I was able to use the Disk Drive option once more without having my PC automatically see it as a Windows Mobile Modem
Hello
When I connect my hd2 to the pc throught the USB cable, the message on hd2 shows up to click sync but my computer can't see the hd2.
I went to device manager but it doesn't show up.
it worked 2 day ago, I even tryed at another PC.
I can recharge the phone from my computer...
deadmau said:
Hello
When I connect my hd2 to the pc throught the USB cable, the message on hd2 shows up to click sync but my computer can't see the hd2.
I went to device manager but it doesn't show up.
it worked 2 day ago, I even tryed at another PC.
I can recharge the phone from my computer...
Click to expand...
Click to collapse
Firstly, what operating system are you using on your PC?
Secondly, have you tried deleting the sync partnership on both your phone and the PC and recreating it?
Thirdly, try and connect your phone directly to the USB root hub on your PC and not via a hub.
The fact that the HD2 is identifying the physical connection suggest the problem may lie at the PC end. Recreating the sync partnership is probably all that's needed.
Hello
If you are using Vista or Win7 you need to download Microsoft Mobile Device Manager to get a successful connection. Once you download this and install all will be good.
There is an option (can´t remember where) where you can disable fast link for ActiveSync.
This fast option has created me a lot of problem.
i'm using win7, i reinstalled the mobile device.
If i disable enable faster data sync then I can sync the phone with the computer but if I enable faster data sync then the 3G band auto enables...
I have just in the last weekend somehow lost the ability to connect to any computer. I have an activesync connection with work and a connection via hsdpa to the server too, and then one via wmdc on my vista home computer.
All has been going swimmingly until the weekend when I noticed that it had stopped synching new appointments.
The computers (both) now no longer even detect the phone, although it does charge via the usb cables.
The settings are still set to sync on the phone (as opposed to say disk drive).
I've tried a bunch of things, and now annoyingly, have hard reset the phone, but no joy!! Now I have the joy of setting everything back up again... But still no synchronising with the computer.
Any thoughts would be greatly appreciated.
bcorgan said:
I have just in the last weekend somehow lost the ability to connect to any computer. I have an activesync connection with work and a connection via hsdpa to the server too, and then one via wmdc on my vista home computer.
All has been going swimmingly until the weekend when I noticed that it had stopped synching new appointments.
The computers (both) now no longer even detect the phone, although it does charge via the usb cables.
The settings are still set to sync on the phone (as opposed to say disk drive).
I've tried a bunch of things, and now annoyingly, have hard reset the phone, but no joy!! Now I have the joy of setting everything back up again... But still no synchronising with the computer.
Any thoughts would be greatly appreciated.
Click to expand...
Click to collapse
Did you reboot the PC? I occassionaly have problems with activesync stopping working suddenly. It doesn't really like being unplugged sometimes and get's a bit ansy about it. I've found that sometimes a soft reset of the phone does it, but sometimes I need to reboot the PC.
I hope you did try rebooting the PC before you did a hard reset. At least you wouldn't have wasted your time with having to set up your phone again!
Yes did indeed! Restarted both. But the fact that it's affecting 2 computers suggests to me that it's something wrong with the phone, and not computers themselves.
HTC haven't been any help as yet - just haven't responded to my requests.
bcorgan said:
Yes did indeed! Restarted both. But the fact that it's affecting 2 computers suggests to me that it's something wrong with the phone, and not computers themselves.
HTC haven't been any help as yet - just haven't responded to my requests.
Click to expand...
Click to collapse
The fact that it still doesn't work after a hard reset leaves me at a loss!
You're telling me!
Before anyone asks also, I've tried different cables and different usb ports on both computers too.
Any other thoughts out there? I'm starting to think now it's something inside the phone - i.e. the usb port?
Fixed for me!
After having sent off the phone to HTC, it was repaired in 8 days and that was sending it to and from Sweden to the UK!
Turns out the usb connector in the phone itself was not working. 10/10 for HTC repair service!
If you use the XPP OS.
You must select ‘To enable faster data synchronization’ (i dont konw how to translated that, sorry my English.) under the ActiveSyuc.
If you use the Vista OS.
You dont select this option otherwise you cannt connect you phone to computer.
me too,..i can't connect with my pc... my computer show me found new hardware & need 2 install driver,...tell me what kind of driver need...? thank!!!
me too,..i can't connect with my pc... my computer show me found new hardware & need 2 install driver,...tell me what kind of driver need...? thank!!!
Click to expand...
Click to collapse
Microsoft Corporation - Other hardware - PocketPC USB Sync
Download size: 11.1 MB
You may need to restart your computer for this update to take effect.
Update type: Recommended
Microsoft Corporation Other hardware software update released in May, 2007
At present, I'm confering with Microsoft about the issue I'm having with my Vista laptop. It finds the correct driver with windows update, but the driver fails to install even with a clean boot.... they're working on it...
deadmau said:
Hello
When I connect my hd2 to the pc throught the USB cable, the message on hd2 shows up to click sync but my computer can't see the hd2.
I went to device manager but it doesn't show up.
it worked 2 day ago, I even tryed at another PC.
I can recharge the phone from my computer...
Click to expand...
Click to collapse
I had the same problem and 'solved' it by trying every other USB port, and (of course) the last one did it correctly.
bcorgan said:
You're telling me!
Before anyone asks also, I've tried different cables and different usb ports on both computers too.
Click to expand...
Click to collapse
To make Active Sync work
Turn off Setup\other\USB to PC\ActiveSync Enable Faster Data Synchronization
The all will be ok
SOLVED!! Joy, joy, happiness glow... . I removed AVG 9.0, restarted, reinstalled WMDC and the driver (all of which installed automatically when I plugged my HD2 in to the USB port), and reinstalled AVG 9.0 and… Voila, MAGIC! I had AVG configuered correctly to allow WMDC to make connections and pass through the antivirus, but I still had to uninstall it to get the driver to install. Sometimes antiviruses are stubborn!
hi i had the same problem try this go to settings on your phone all settings connections usb to pc and uncheck the fast sync box if that dont work theirs an option that is somewhere on your pc where you can choose the pc to search for an update driver for that device
marquez2010 said:
hi i had the same problem try this go to settings on your phone all settings connections usb to pc and uncheck the fast sync box if that dont work theirs an option that is somewhere on your pc where you can choose the pc to search for an update driver for that device
Click to expand...
Click to collapse
I tried BOTH of those options prior to uninstalling AVG and no joy. Bytheway, I've switched to Microsoft Security Essentials and still have to uninstall MSE everytime I flash my HD2! UGH!
When I connect to my work laptop (Macbook Pro), my phone connects as an installer. After a few seconds, it switches to a media device connection. I have the Developer Options enabled and the USB Debugging option selected, but it keeps getting turned off as soon as the phone is connected via USB cable.
It was working properly last week, but I updated to MacOS 10.10.5 over the weekend, and now it won't see my phone in USB Debugging mode.
Due to the timing of the MaxOS update, I do not believe this is an error with my phone or Android, but I'm hoping some other Macbook users may have encountered and resolved this issue. I've been unsuccessful in tracking down anything helpful, partly because of the voluminous search results for "USB debugging." I'd appreciate any help available.
I'm running 4.4.2, rooted but otherwise stock.
Thanks!
Even though no one else replied here, I thought I'd post my resolution in the event that someone else with the same problem stumbles across this thread in the future. The short version: enter *#0808# into your dial pad and you should get the USBSettings screen where you can choose from several options how your phone handles a USB connection. I ended up landing on the "DM + Modem + ADB" mode, which allowed my laptop to talk to my phone again. No clue what caused the problem in the first place, nor why USB Debugging mode itself didn't stick, but this resolved it for me. Hope it works for others, as well...
So i have the LG v20 H-990 (elsa) non rooted phone with Android 7.... Im trying to get it to connect to my pc but it wont work..i have usb drivers and lg drivers 4.2 plus i have lg bridge installed but as soon as i plug phone in...it just starts charging...
So in developer options i saw its set to mtp (media transfer protocol) and i cant cgange it even if i select sometging else it just goes back to mtp... So i tried turning usb debugging on...yet no joy....its not that the PC is not picking up the phone but more like tye phone is not letting connection ....well connect...please help?? I want to try and get some backups going and updates and also play with photos and vids ....please please please help
You have an H990 or an LS997? Also, the phone will charge, even on MTP(which is what it uses to communicate with PC), so you don't have to try to force stop it. Have you gone into device manager or ADB to verify your PC isn't reading the phone?
Sent from my LG-LS997 using Tapatalk
I have the h-990 and yes i have gone to device manager and there is nothing...
I've been having the same problem I couldn't change USB connection type from mtp to charging or ptp etc...what I found is if I try to change it from the developer menu it doesn't want to work, but if I bring down the notifications shade and expand the notification for it and change it with the popup it tends to work most times...I did have one time I couldn't get it to work at all until I factory reset my phone (wiped and reflashed ROM but I'm rooted and rom'd)... Sometimes restarting both phone and PC works...I'm not sure what it is it seems to be different on every PC I hookup to ...oh and sometimes I've toggled USB debugging off then on and that helped....so without several people having the problem and all trying to collect information about types of PC and cables and other individual variables I figured its some kind of glitch or some code error somewhere that under certain circumstances makes the v20 stupid, that likely won't be fixed or solved...this is just my experience , i thought maybe one of the things that seemed to help me might help you....good luck