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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?
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, I have strange problem with my OP2. Since some time when I connect my OP2 to PC it's only connected in charging mode. I've tried different methods to solve it: tried different cables, tried different computer, event wiped data & cache but nothing seems to work. It seems that it might have something with OOS 3.1 or eventually there is some hardware issue with my phone. Currently I'm on stock OOS 3.1 without root and on stock recovery. Is there any way to root my phone without possibility to connect it to PC in ADB/Fastboot mode? Or what else can I try to make phone to connect to PC in different mode than charging?
KillyGonzales said:
Hi, I have strange problem with my OP2. Since some time when I connect my OP2 to PC it's only connected in charging mode. I've tried different methods to solve it: tried different cables, tried different computer, event wiped data & cache but nothing seems to work. It seems that it might have something with OOS 3.1 or eventually there is some hardware issue with my phone. Currently I'm on stock OOS 3.1 without root and on stock recovery. Is there any way to root my phone without possibility to connect it to PC in ADB/Fastboot mode? Or what else can I try to make phone to connect to PC in different mode than charging?
Click to expand...
Click to collapse
Try reinstall USB drivers
Reinstalled and still same situation. Phone only connects in charging mode and is not detected at all in device manager.
KillyGonzales said:
Reinstalled and still same situation. Phone only connects in charging mode and is not detected at all in device manager.
Click to expand...
Click to collapse
Connect your device in fastboot mode to your pc and go to device manager in your pc you will see a device listed as Kedacom USB device. Uninstall and delete the driver. Remove your device and connect it again.
EvenOdd said:
Connect your device in fastboot mode to your pc and go to device manager in your pc you will see a device listed as Kedacom USB device. Uninstall and delete the driver. Remove your device and connect it again.
Click to expand...
Click to collapse
Doesn't help. Even in fastboot mode phone is not listed in device manager.
KillyGonzales said:
Doesn't help. Even in fastboot mode phone is not listed in device manager.
Click to expand...
Click to collapse
Phone should be listed as Kedacom USB device.
Also try this http://forum.xda-developers.com/showthread.php?t=2588979
Download the latest version 1.4.3 from here
https://drive.google.com/open?id=0B0MKgCbUM0itNVB1elljU2NPR0k
I've tried this tool before without success. I'm afraid that there might be some hardware issue with my phone
same problem with me...i have recently updated my phone.... os 3.1.0 ...but not working with adb....after opening command prompt ...left process of adb not working
Make sure you check your device in device manager. It should be listed as Kedacom USB device uninstall and delete the driver.
Which version of windows u r using ?
I've tried on windows 10 64 bit & windows 7 64 bit.
I would try Linux
KillyGonzales said:
Hi, I have strange problem with my OP2. Since some time when I connect my OP2 to PC it's only connected in charging mode. I've tried different methods to solve it: tried different cables, tried different computer, event wiped data & cache but nothing seems to work. It seems that it might have something with OOS 3.1 or eventually there is some hardware issue with my phone. Currently I'm on stock OOS 3.1 without root and on stock recovery. Is there any way to root my phone without possibility to connect it to PC in ADB/Fastboot mode? Or what else can I try to make phone to connect to PC in different mode than charging?
Click to expand...
Click to collapse
Hi have you found any solution to this? It happened to my phone too...
Enviado do meu ONE A2003 através de Tapatalk
RCT1 said:
Hi have you found any solution to this? It happened to my phone too...
Enviado do meu ONE A2003 através de Tapatalk
Click to expand...
Click to collapse
No I haven't found anything new. After update to 3.5.5 still same situation. I think this is some kind of hardware malfunction. Have you ever used charging cable other than shipped with phone? I think maybe using other cable damaged something with usb port in phone...
My phone is Xiaomi. My phone recently have been infected by viruses that destroyed some important apps like: Play Store, Google Play Services and etc. I turned it off and then, wiped all data of it. The first configuration is actually broken in the step "Connect in the MI Account", so i tried use fastboot to activate USB Debug and define home as the default and press home button through ADB. But in the first step... My computer not found it.
My Xiaomi is Redmi-2014819. I need a answer most fast possible.
Lg G6 with the same issues. Fast charge went crazy and think this has blown something inside. Only normal charging works.
No ADB, fastboot, download mode. Can't even connect to laptop or Mac to transfer files.
Had charger replaced but it's the phone I think.
Gonna replace charge port but don't think this will fix issue.
Anyone had any luck?
Hi, my brother got this phone with RR 7.1.1 installed and it seems like the rom has lots of bugs because it reboots from time to time and instead of botting to the system it bots to TWRP, I downloaded Lineage OS to install it but the phone isnt detected at all by the PC, like, it wont even tell me there is a new device connected, the usb port is working because I can charge it just fine with the charger but nothing works when connecting it to the PC, anyone has faced this problem or knows how to fix it? Also, can I just downgrade to stock marshmallow?
Thanks in advance.
zeratos said:
Hi, my brother got this phone with RR 7.1.1 installed and it seems like the rom has lots of bugs because it reboots from time to time and instead of botting to the system it bots to TWRP, I downloaded Lineage OS to install it but the phone isnt detected at all by the PC, like, it wont even tell me there is a new device connected, the usb port is working because I can charge it just fine with the charger but nothing works when connecting it to the PC, anyone has faced this problem or knows how to fix it? Also, can I just downgrade to stock marshmallow?
Thanks in advance.
Click to expand...
Click to collapse
Go to settings, developer options and enable debugging mode. When you will connect via usb it should ask for authorization. Post authorizing, pull down the menu and set usb to data transfer.
There are other options like using memory card or transfer via xender.
Hello everyone, so I recently flashed android 10.3.1 on my OnePlus 6t device.
After that I found that I no longer have TWRP as my recovery mode.
Now I'm trying to flash TWRP and root the device again.
But every time I get into fastboot mode, the phone gets stuck on it, and my windows 10 cannot detect my device anymore.
any suggestions?
try a different pc i have never used windows 10 only 7 or xp without any issues, the reason why twrp keeps going is because of stock rom verification, if you want to keep twrp then root and flash with custom rom, reflash twrp if necessary and then all will be fine.
Hope that resolves all your isssues
sajeel said:
try a different pc i have never used windows 10 only 7 or xp without any issues, the reason why twrp keeps going is because of stock rom verification, if you want to keep twrp then root and flash with custom rom, reflash twrp if necessary and then all will be fine.
Hope that resolves all your isssues
Click to expand...
Click to collapse
I just tried the same steps on windows 7 and got the same result, Once My phone gets into fastboot mode, my windows cannot detect it.
Does it show up in device manager at all? Perhaps as an unrecognized device?
xijar said:
Does it show up in device manager at all? Perhaps as an unrecognized device?
Click to expand...
Click to collapse
I think it does as an unrecognized device, but I tried to update it and nothing changed.
Im thinking it might be that the last version of TWRP os not compatible with 10.3.1 ?
YousefHadder said:
I think it does as an unrecognized device, but I tried to update it and nothing changed.
Im thinking it might be that the last version of TWRP os not compatible with 10.3.1 ?
Click to expand...
Click to collapse
That has strictly nothing to do with twrp
Driver issue or try another USB port or try another cable
Striatum_bdr said:
That has strictly nothing to do with twrp
Driver issue or try another USB port or try another cable
Click to expand...
Click to collapse
I've tried this before, but I don't think its a cable or port issue because before going into fastboot mode, it was detected by my laptop.
Thank you all, but it turned out to be a TWRP Issue, I found the solution on another post here at this forum with the latest unofficial stable TWRP version.
Now my device is rooted again and everything works fine