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Hi, I had a dodgy usb port giving mn charging issues and intermintant loss of usb disk. I have replaced this now however I keep getting unkown device when I connect this to a PC laptop etc. this happened briefly before I replaced it too, but message would disappear almost as soon as it was wired to the pc (what I mean is it would should be storage briefly then vanish), now it doesn’t show my storage at all, but does show a device connected to my machine which is progress as I have a nice snug port now, but just says unknown device. I’ve reinstalled drivers I’ve disabled usb debugging, and enabled it, tried mtp, ptp no joy just cant see my usb device, but does charge ok.
In the background my device updated to 4.4. and hence my phone is no longer rooted, but im wondering if there is residue from the previous root that is causing the port to malfunction affectively so my thoughts were to completely unroot the device. I don’t have a custom rom installed, just root. How can I get back to the scratch? Or if anyone has any suggestions or tips. I also bought a new battery and that didn’t resolve it either
i rooted my phone using ncry toolkit previoulsy
Hoping someon canhelp
Thanks
gdallas said:
Hi, I had a dodgy usb port giving mn charging issues and intermintant loss of usb disk. I have replaced this now however I keep getting unkown device when I connect this to a PC laptop etc. this happened briefly before I replaced it too, but message would disappear almost as soon as it was wired to the pc (what I mean is it would should be storage briefly then vanish), now it doesn’t show my storage at all, but does show a device connected to my machine which is progress as I have a nice snug port now, but just says unknown device. I’ve reinstalled drivers I’ve disabled usb debugging, and enabled it, tried mtp, ptp no joy just cant see my usb device, but does charge ok.
In the background my device updated to 4.4. and hence my phone is no longer rooted, but im wondering if there is residue from the previous root that is causing the port to malfunction affectively so my thoughts were to completely unroot the device. I don’t have a custom rom installed, just root. How can I get back to the scratch? Or if anyone has any suggestions or tips. I also bought a new battery and that didn’t resolve it either
i rooted my phone using ncry toolkit previoulsy
Hoping someon canhelp
Thanks
Click to expand...
Click to collapse
Try this
http://forum.xda-developers.com/showthread.php?t=2010312
mrhiab said:
Try this
http://forum.xda-developers.com/showthread.php?t=2010312
Click to expand...
Click to collapse
but my computer doesn see my n4, well it does, but says unrecognized or unkown device so i will be unable to carryou ot thise steps you posted, but thanks anyway .
gdallas said:
but my computer doesn see my n4, well it does, but says unrecognized or unkown device so i will be unable to carryou ot thise steps you posted, but thanks anyway .
Click to expand...
Click to collapse
I have the same issue. Any solutions?
Same issue here. You guys also experiencing extreme battery drain?
Sent from my Nexus 4 using Tapatalk
magote said:
Same issue here. You guys also experiencing extreme battery drain?
Sent from my Nexus 4 using Tapatalk
Click to expand...
Click to collapse
Same Problem Here. And Yes i have too a extreme battery drain
danielmm1997 said:
Same Problem Here. And Yes i have too a extreme battery drain
Click to expand...
Click to collapse
Me too. Im using LMY48I. I cant figure out whats wrong...
Hi, background is this..
I have a D802-10C G2 that i rooted the stock 4.2.2 rom a while back using the post chinese method. Easy enough, all worked fine. no complaints. A couple of weeks ago i got offered the OTA 4.4 update, this failed due to the root. I then removed the root using the feature in super su. that seems to have worked as no apps or file managers etc could get root access. However, the OTA still wont work.
Now my problem is my phone will no longer be recognized by any operating system, on multiple computers. I have tried many ADB drivers, Windows 7 wont even detect the device, i've used every PC connect mode, USB debugging. However always the same result, it's as if i'm plugging in a blank usb cable into the computer. Nothing at all.
The only thing that does happen when i connect the phone to a computer is the phone starts to trickle charge. There is nothing detected in Device Manager in Windows 7 I've tried connecting in download mode, nothing. I've tried the LG support tool, PC sync. Nothing.
WiFi does connect to the PC suite fine BTW and other than that the phone is working perfectly. I've also tried connecting multiple usb cables on multiple ports.
I haven't been able to find a single case of the same problem in the week or so i've been looking. Hoping someone can help, i'm thinking i may have soft bricked my phone. I really do not think this is a driver issue.
Any help would be great. cheers
Paul
+1
i have the same problem plz help
cambies said:
Hi, background is this..
I have a D802-10C G2 that i rooted the stock 4.2.2 rom a while back using the post chinese method. Easy enough, all worked fine. no complaints. A couple of weeks ago i got offered the OTA 4.4 update, this failed due to the root. I then removed the root using the feature in super su. that seems to have worked as no apps or file managers etc could get root access. However, the OTA still wont work.
Now my problem is my phone will no longer be recognized by any operating system, on multiple computers. I have tried many ADB drivers, Windows 7 wont even detect the device, i've used every PC connect mode, USB debugging. However always the same result, it's as if i'm plugging in a blank usb cable into the computer. Nothing at all.
The only thing that does happen when i connect the phone to a computer is the phone starts to trickle charge. There is nothing detected in Device Manager in Windows 7 I've tried connecting in download mode, nothing. I've tried the LG support tool, PC sync. Nothing.
WiFi does connect to the PC suite fine BTW and other than that the phone is working perfectly. I've also tried connecting multiple usb cables on multiple ports.
I haven't been able to find a single case of the same problem in the week or so i've been looking. Hoping someone can help, i'm thinking i may have soft bricked my phone. I really do not think this is a driver issue.
Any help would be great. cheers
Paul
Click to expand...
Click to collapse
YOu can try checking the device manager or use other USB port on your phone.
buenarc said:
YOu can try checking the device manager or use other USB port on your phone.
Click to expand...
Click to collapse
The problem is not like the usual ones you will see about "computer not being able to see device" I don't think it's a driver or software issue, or if it is it's unlike any i have found in the weeks i've been searching the net for a solution. Here's why....
When i connect the phone to Windows 7 and 8 ( on 3 different computers) No hardware is detected, nothing in the Device Manager, no yellow question marks indicating 'Unknown Hardware'. Nothing, all it does is start trickle charging.
Now even with no ADB, or any driver at all installed, the computer should still detect the phone. Mine does not.
The same thing happens using OSX and Linux Mint 16 (again multiple computers) No devices or mounted or volumes shown at all. Linux terminal command "$ lsusb" does not list my hardware.
This is why i'm pretty much convinced that there is something wrong with the USB port on the phone. Because, if Linux can't see it then surely it's a hardware problem right?
The only other thing i can think of is, i have messed up the phones firmware while trying to unroot it? but only because the timing of all this is just too uncanny.
I think i'll have to suck it up and admit defeat here. Funny thing is the phone works perfectly and charges fine.
Stuck on 4.2 , with no ADB functionality. Perhaps i'll sell it cheap to someone who doesn't care.
Cheers for the reply mate.
Same problem here!
Only my G2 is not rooted, it is still on factory OS and recently updated to 4.4.2.
I have tried on several computers, different ports and no help.
On the first connection to a PC not connected before windows reports "USB device not recognized" problem.
After that every time I connect the phone to the same computer the phone itself only recognizes that it is using USB charging mode, it does not recognize the computer connection (known by the USB ison on android system tray) even with "Ask upon connection option checked".
Even when I manualy change the Android mode in Settings --> PC Connection from MTP to PTP or even LG software, nothing happens.
Definetly there seems to be a problem with the phone, but I don't beleive it's a software but a firmware problem.
Please help if anyone knows what to do.
same thing happened after installing T-mobile rom thrugh twrp. but my device boots into fastboot and i tryed falshing :
laf.img, boot.img, aboot.img, recovery.img, laf.img
but after reboot my LS980 dissapear from device manager and stucked on LG logo.
Dont know what to do now.
I'm no expert, but given there are a lot of them here and none have weighed in on this with any ideas for a fix, i'm going to assume it's a hardware problem.
Anyone else agree? Hardware problem not software?
Cheers
I guess that you already wiped everything right? Apart from that, i'll suggest you to go to some tech supp and ask them if they can verify that each pin of the micro usb is properly working.
Sorry for my english, hope it helps!
Sent from my LG-D802 using XDA Free mobile app
I will try to check the connector although i dont think that it is a hardware issue.
BTW I can enter the download mode after flashing the mentioned partitions and i can also enter the stock LG recovery but when i do the factory reset it keeps showing Factory reset processing ... for ever
It has happened to me the same thing :crying:, and is a problem with the boot.img, if by chance your G2 version 4.4.2 and the the 4.2.2 boot.img, goodbye.
The only solution is to take it to repair a service official, there will change you the card, with the consequent change of IMEI.quent change of IMEI.
Homero2 said:
It has happened to me the same thing :crying:, and is a problem with the boot.img, if by chance your G2 version 4.4.2 and the the 4.2.2 boot.img, goodbye.
The only solution is to take it to repair a service official, there will change you the card, with the consequent change of IMEI.quent change of IMEI.
Click to expand...
Click to collapse
where are you going to repair your G2?
and how much have you paid the repair?
THANKS
Any fix for this guys i have same problem!
Here I'm getting the yellow !, any suggestion?
Sirs, I flashed the baseband (https://www.androidfilehost.com/?w=files&flid=12880) then it got working back.
solved for me
I have some kinds of that problem, let try:
Settings -> General -> PC Connection -> Select USB connection method -> Media device (MTP) (or whatever)
Got this same issue after flashing cloudy g3 rom. Then later flashing dirty unicorns, which requires jelly bean baseband. But even restoring g3 and 24a baseband, still doesn't work. No pc tethering and no on the go usb. My usb port is basically charge only.
---------- Post added at 03:58 PM ---------- Previous post was at 03:56 PM ----------
Everything else works fine...I actually never even noticed this bc I never tether to pc. But now I have to bc I want flask kdz
Help me please
someone have a solution to this problem?
My Lg G2 D803 still on boot loop (LG logo) and thats all ... no usb connection , reset factory doesnt work ...
HELP PLEASE ...
Thank you
Anyone has an idea how to fix this problem?
same problem
I have a LG G2 . recently updated from vs98027a to vs98039a 5.0 lollipop. Since the update my computer won't recognize my device in download mode and I don't have superuser ppermissions. Help plz
I also have the same problem.
It happened when I tried to backup info through LG PC Suite: the phone disconnected during the process, and now it's not recognized by any PC (http://forum.xda-developers.com/lg-g2/help/lg-g2-recognized-windows-backup-t3155323).
Also found a description of the same problem here: https://www.reddit.com/r/lgg2/comments/2urpnw/lg_g2_usb_only_charging_not_recognized_by_pc/ - no solutions, too.
Did anyone manage to fix this?
Im having an issue with my phone connecting to computer. I'm trying to get back to stock but have no way in getting into odin without usb. I think their is a problem with something on the phone it isn't a pc or cable problem. I also had a new flex port recently installed. My phone will charge when connected to computer but it will not sync nor even recognized by device manager. I cant find any info anywhere with this issue. I try to enable mtp through hidden menu using *#0808# but it wont stay enabled resets after reboot. I also cant find menu under settings for usb. There use to be a menu in storage but it seems like its not there anymore. im on beans 4.4.2 nc4 with nc2 bootloader. can't find a solution nowhere.
I have the same problem, been trying to search online for few days, can't find the solutions.
Sammguy said:
Im having an issue with my phone connecting to computer. I'm trying to get back to stock but have no way in getting into odin without usb. I think their is a problem with something on the phone it isn't a pc or cable problem. I also had a new flex port recently installed. My phone will charge when connected to computer but it will not sync nor even recognized by device manager. I cant find any info anywhere with this issue. I try to enable mtp through hidden menu using *#0808# but it wont stay enabled resets after reboot. I also cant find menu under settings for usb. There use to be a menu in storage but it seems like its not there anymore. im on beans 4.4.2 nc4 with nc2 bootloader. can find a solution nowhere.
Click to expand...
Click to collapse
bryanling said:
I have the same problem, been trying to search online for few days, can't find the solutions.
Click to expand...
Click to collapse
Try dl'g the Sammy drivers directly from here and just click on the "See all Downloads", click "Send" and save the .exe file.
Run it as administrator, and once complete, plug in phone and that should correct the pc to phone issue.
shaggy_kobain said:
Try dl'g the Sammy drivers directly from here and just click on the "See all Downloads", click "Send" and save the .exe file.
Run it as administrator, and once complete, plug in phone and that should correct the pc to phone issue.
Click to expand...
Click to collapse
Actually it's my phone problem, i try on 10++ pc, all are not working :crying:
bryanling said:
Actually it's my phone problem, i try on 10++ pc, all are not working :crying:
Click to expand...
Click to collapse
Enable developer mode (tap on settings, about and then tap on the build number 7 times to enable developer mode).
Then back to settings, developer options and turn on usb debugging.
Sent from my Note 3 via Tapatalk
. I have original VZ driver installed. and i tried running as admin
Already tried this. On multiple computers. It's not a driver problem it has to do with something that happen after flashing to the leaked kitkat. I flashed beans kitkat and firmware through odin and since then wasnt able to connect to computer via usb. I read somewhere you could flash back to mje but not sure if i could do that without odin. I covered all the basics including enabling developer mode etc.... Kies doesn't work either and that was suppose to be bullet proof. I vaguely remember something similar happening when we got Root de la Vega some people lost usb after flashing and couldn't odin back but cant find that thread with what they did to fix it.
Sammguy said:
. I have original VZ driver installed. and i tried running as admin
Already tried this. On multiple computers. It's not a driver problem it has to do with something that happen after flashing to the leaked kitkat. I flashed beans kitkat and firmware through odin and since then wasnt able to connect to computer via usb. I read somewhere you could flash back to mje but not sure if i could do that without odin. I covered all the basics including enabling developer mode etc.... Kies doesn't work either and that was suppose to be bullet proof. I vaguely remember something similar happening when we got Root de la Vega some people lost usb after flashing and couldn't odin back but cant find that thread with what they did to fix it.
Click to expand...
Click to collapse
Did you disable the mtp application?
drewcam888 said:
Did you disable the mtp application?
Click to expand...
Click to collapse
Do you mean through hidden menu or should there be an app on the phone? I didn't disable it i tried to enable it through hidden menu because it wasn't working but it just resets after rebooting the phone. Also there use to be a menu in storage under settings i could get to but it no longer exists. If you go into settings- storage- it should be a button in the top right corner of your screen which leads you into settings for mtp but it's not there.
Sammguy said:
Do you mean through hidden menu or should there be an app on the phone? I didn't disable it i tried to enable it through hidden menu because it wasn't working but it just resets after rebooting the phone. Also there use to be a menu in storage under settings i could get to but it no longer exists. If you go into settings- storage- it should be a button in the top right corner of your screen which leads you into settings for mtp but it's not there.
Click to expand...
Click to collapse
I too am having this issue... it is quite frustrating. I rooted using towel root and that worked fine up until the beginning of September then USB was gone gone gone!. I was thinking of just doing a factory-restore of my phone, but I am not sure that is possible with having Towel rooted my phone. I just don't know what steps to take. Any help would be greatly appreciated!
i am going to the local verizon store today and if they can not fix this, then i see no reason for me to continue to pay for my phone. there obviously is something wrong with all these phones that people are complaining about. i have been on the phone with verizon and samsung for HOURS. i now am a pro at knowing what's wrong but no one can help me. It does not stay in MTP mode or PTP and goes back to charging. this is a phone problem that should not even exsist. plug your phone in, upload pics. has anyone gotten verizon to replace the phone????that's my goal today
It takes two to tango; how do you know the problem is not the PC?
Older versions of stock software actually put the phone in Airplane Mode when you were using USB 3.0, and had an inactivity timer or something that would turn the USB link off after a while. That didn't happen if you were operating on a USB 2.0 link.
So, if your PC has any non-USB 3.0 ports (the connector will not be blue) you could try using a USB 2.0 port.
Sometimes intermittent behavior is caused by bad cabling or a damaged connector, so a second thing to try is using a replacement cable and/or alternate ports. (Don't buy bargain basement eBay $2 cables btw - you will get what you pay for)
good luck
nancyvf8 said:
i am going to the local verizon store today and if they can not fix this, then i see no reason for me to continue to pay for my phone. there obviously is something wrong with all these phones that people are complaining about. i have been on the phone with verizon and samsung for HOURS. i now am a pro at knowing what's wrong but no one can help me. It does not stay in MTP mode or PTP and goes back to charging. this is a phone problem that should not even exsist. plug your phone in, upload pics. has anyone gotten verizon to replace the phone????that's my goal today
Click to expand...
Click to collapse
Is this a phone that you flashed a custom rom, rooted, or unlocked the bootloader?
Hey guys I tried to connect my nexus 7 to my Windows 7 laptop but nothing popped up it just showed as charging on my n7 I've tried update the drivers and different cables and different laptops too but it's all the same, even fastboot doesn't show up or mtp in twrp, any ideas how to fix this guys?
Anyone got any idea how to fix this problem?
Hey,
Have you tried enabling USB debugging in Settings > Developer Options?
Fobos531 said:
Hey,
Have you tried enabling USB debugging in Settings > Developer Options?
Click to expand...
Click to collapse
Cheers mate but yep I tried that and nothing changed
I'm in the same boat. Had this problem for a long while, almost had my guarantee expire so I had it fixed. Not sure what caused it, or what fixed it. But couple of weeks later I was transfering some files through the now working USB port and accidently touched the cable - the device lost connection mid-transfer and since then I was unable to use the USB to transfer files, or connect the device to anything but the charger..
Along comes the 5.1 OTA which I decide to install and mid-install there was an error and the device soft-bricked - I can't boot it, it shows the Android robot with a red traingle and exclamation mark and 'No command.' written under it, at which point it reboots after a couple of minutes.
I can access recovery and fastboot mode and excecuted a factory reset but to no avail. Does anyone know how to fix the USB so that I can reflash stock and make my device work again?
Also, any ideas if one could bypass the use of the USB port in fixing the softbrick would also be helpful.
Armeddy said:
I'm in the same boat. Had this problem for a long while, almost had my guarantee expire so I had it fixed. Not sure what caused it, or what fixed it. But couple of weeks later I was transfering some files through the now working USB port and accidently touched the cable - the device lost connection mid-transfer and since then I was unable to use the USB to transfer files, or connect the device to anything but the charger..
Along comes the 5.1 OTA which I decide to install and mid-install there was an error and the device soft-bricked - I can't boot it, it shows the Android robot with a red traingle and exclamation mark and 'No command.' written under it, at which point it reboots after a couple of minutes.
I can access recovery and fastboot mode and excecuted a factory reset but to no avail. Does anyone know how to fix the USB so that I can reflash stock and make my device work again?
Also, any ideas if one could bypass the use of the USB port in fixing the softbrick would also be helpful.
Click to expand...
Click to collapse
Do you twrp installed mate?
No, I do not.
Hi,
since one of the latest Oxygen OS updates, my OnePlus 5 is not able to connect to any PC anymore as long as USB-Debugging is enabled. It's not showing up in Device-Manager nor lsusb on multiple PCs, I've tried rebooting multiple times, safe mode, clearing settings data, but nothing seems to have changed it's behavior - when turning on USB Debugging, all USB connections seem to get lost, including data and charging. A curious thing I noticed is that the Android-System notification that lets you switch USB modes sticks around when unplugging in this state, even after disabling debugging again, until the phone is restarted.
Is this a common issue? I haven't been able to find anything about it on XDA or on their official product forums which seem to be pretty dead, but it's a pretty big problem for me since I need this phone for app development.
Thanks!
armibu said:
Hi,
since one of the latest Oxygen OS updates, my OnePlus 5 is not able to connect to any PC anymore as long as USB-Debugging is enabled. It's not showing up in Device-Manager nor lsusb on multiple PCs, I've tried rebooting multiple times, safe mode, clearing settings data, but nothing seems to have changed it's behavior - when turning on USB Debugging, all USB connections seem to get lost, including data and charging. A curious thing I noticed is that the Android-System notification that lets you switch USB modes sticks around when unplugging in this state, even after disabling debugging again, until the phone is restarted.
Is this a common issue? I haven't been able to find anything about it on XDA or on their official product forums which seem to be pretty dead, but it's a pretty big problem for me since I need this phone for app development.
Thanks!
Click to expand...
Click to collapse
Open beta or stable? Which version exactly?
strongst said:
Open beta or stable? Which version exactly?
Click to expand...
Click to collapse
I'm running the current stable Oxygen OS 5.1.5(ONEPLUS A500_23_180808), unrooted. I'll try installing the new beta, since fastboot mode still gets recognized by PCs.
Ok, so beta 19 didn't change anything about it - still the same issue and behavior when unplugging. Not sure what else to do other than trying to wipe it, which would be pretty annoying
I have the same problem and I can not solve it neither with usb debuginc or mtp and I see that Oneplus is not bothering att all about this problem. I need to transfer some data from my computer to my phone and I am stucked. I am thinking sending to warranty or sell it! I was a big fun but now........
lhoria46 said:
I have the same problem and I can not solve it neither with usb debuginc or mtp and I see that Oneplus is not bothering att all about this problem. I need to transfer some data from my computer to my phone and I am stucked. I am thinking sending to warranty or sell it! I was a big fun but now........
Click to expand...
Click to collapse
You have not the same problem... Op wants to transfer data while usb debugging is on. But it works only when usb debugging is off.
Yes I have. O tried all the combination but it is just not working, with debugging on or off. I should aopreciate litle help.
Thank you
lhoria46 said:
Yes I have. O tried all the combination but it is just not working, with debugging on or off. I should aopreciate litle help.
Thank you
Click to expand...
Click to collapse
The op can transfer files with USB debugging disabled. You can not. So you have another issue please read OP again
Thanks smart guy but can I solve this problem? Even op want to transfer data from pc to the phone and reverse with usb debugg off I can not. It is written usb not recognize.
Thank you in advance.
armibu said:
Ok, so beta 19 didn't change anything about it - still the same issue and behavior when unplugging. Not sure what else to do other than trying to wipe it, which would be pretty annoying
Click to expand...
Click to collapse
lhoria46 said:
Thanks smart guy but can I solve this problem? Even op want to transfer data from pc to the phone and reverse with usb debugg off I can not. It is written usb not recognize.
Thank you in advance.
Click to expand...
Click to collapse
I'm on OB19, rooted with magisk 17.2 and with USB debugging enabled or disabled im getting file transfer working on 2 win10 pc's.
The pop-up is immediately present after plugging into USB port(original cable or other USB cable).
Msybe: Toggling file transfer to charging and back can help you?
strongst said:
I'm on OB19, rooted with magisk 17.2 and with USB debugging enabled or disabled im getting file transfer working on 2 win10 pc's.
The pop-up is immediately present after plugging into USB port(original cable or other USB cable).
Msybe: Toggling file transfer to charging and back can help you?
Click to expand...
Click to collapse
I've tried this a few times, the options in that pop-up don't have any effect whatsoever after enabling USB debugging and unplugging/plugging the phone back in. Also tried changing the default setting, which doesn't seem to have any effect either though.
Same for me. No effect att all. I don't lnpw what to do. I have a lot of files in storage and I can not root my phone and try another Rom.
Help!!!
I have done all the possibel combinations.
armibu said:
I've tried this a few times, the options in that pop-up don't have any effect whatsoever after enabling USB debugging and unplugging/plugging the phone back in. Also tried changing the default setting, which doesn't seem to have any effect either though.
Click to expand...
Click to collapse
lhoria46 said:
Same for me. No effect att all. I don't lnpw what to do. I have a lot of files in storage and I can not root my phone and try another Rom.
Help!!!
I have done all the possibel combinations.
Click to expand...
Click to collapse
Have you tried another PC, checked your driver, firewall etc?
Common issue across all devices
Just a suggestion.
Yes I did it on two Pc and with two diffrent cables. One day it worked 3 minutes and the problem suddenly came back without takig off the cabel from Pc.
lhoria46 said:
Yes I did it on two Pc and with two diffrent cables. One day it worked 3 minutes and the problem suddenly came back without takig off the cabel from Pc.
Click to expand...
Click to collapse
And you have which oxygenOS version?
The latest update OEM 8.1.0 version OPC O2 19 BETA but the problems begun before loadin this uodate. The reason I put this one was exact that I wasn't able to do nothing.
lhoria46 said:
The latest update OEM 8.1.0 version OPC O2 19 BETA but the problems begun before loadin this uodate. The reason I put this one was exact that I wasn't able to do nothing.
Click to expand...
Click to collapse
Really strange... OOS 5.1.5 and OB19 and before.
Never had any issues and also others not report such issues