[Q] usb device not recognized plz help ! - Galaxy Grand 2 Q&A, Help & Troubleshooting

Hi .
my pc can't recognized my grand 2 .... I try evry solution I found In the Internet .. nothing work for me .
I hope you guys help me

bilel7 said:
Hi .
my pc can't recognized my grand 2 .... I try evry solution I found In the Internet .. nothing work for me .
I hope you guys help me
Click to expand...
Click to collapse
try in different PC or laptop or usb cable.May be faulty in usb cable or in usb hub.

change your's charging jack

USB Connecion with PC does''t detect phone (Posting again for help)
I am trying to connect my Grand 2 [SM-G7102] with my pc, but unfortunately, its not detecting my phone. And I don't even have a clue whether it happened because of me or not..
I've already tried several steps to solve my prob but none of them worked.
Like-
1. Rebooting the phone, clearing cache n dalvik cache. (Didn't worked)
2. Uninstalled all its drivers from computer and reinstalling latest one's. (Tried old and new versions, none worked)
3. Installed Kies3 to check its discoverable or not. (Tries to discover but says not recognized)
4. Changing modes from mtp to ptp to adb. (Useless)
5. Cleaning off the pins and using its original data cable. (Switched several cables)
After these steps what I found out is that after fresh installed drivers it attempts to install its own driver which takes too long but after installing it does not get detected in my computer but rather it shows up in device manager with name "SAMSUNG_Android".
I know it cant be rom issue or anything like that, but also I believe its not pin broken issue as it is charging plus when i uninstalled all its drivers the device tries to reinstall its own driver taking 5 minutes but in end it shows "Installing SAMSUNG_Android" and closes.
So please help me out and suggest something .
Thanks in advance .

Post yours device manager screenshot

Try a factory reset

devjmi said:
Post yours device manager screenshot
Click to expand...
Click to collapse
this is the screenshot-
http://s30.postimg.org/mpimxc6r5/image.png
also the encircled one's are the changes in driver happens after connecting my mobile.
and I've already tried updating each one of them manually as well as automatically, so if you have any suggestions other than that, then I'll be thankful.
---------- Post added at 05:50 PM ---------- Previous post was at 05:49 PM ----------
kishan12345 said:
Try a factory reset
Click to expand...
Click to collapse
it will be waste of time and my data, it won't help i believe

Dial *#0808#
select dm+modem+adb
Press ok and reboot
Now try to detect urs phone via kies or odin
Post results

Anubhav001 said:
I am trying to connect my Grand 2 [SM-G7102] with my pc, but unfortunately, its not detecting my phone. And I don't even have a clue whether it happened because of me or not..
I've already tried several steps to solve my prob but none of them worked.
Like-
1. Rebooting the phone, clearing cache n dalvik cache. (Didn't worked)
2. Uninstalled all its drivers from computer and reinstalling latest one's. (Tried old and new versions, none worked)
3. Installed Kies3 to check its discoverable or not. (Tries to discover but says not recognized)
4. Changing modes from mtp to ptp to adb. (Useless)
5. Cleaning off the pins and using its original data cable. (Switched several cables)
After these steps what I found out is that after fresh installed drivers it attempts to install its own driver which takes too long but after installing it does not get detected in my computer but rather it shows up in device manager with name "SAMSUNG_Android".
I know it cant be rom issue or anything like that, but also I believe its not pin broken issue as it is charging plus when i uninstalled all its drivers the device tries to reinstall its own driver taking 5 minutes but in end it shows "Installing SAMSUNG_Android" and closes.
So please help me out and suggest something .
Thanks in advance .
Click to expand...
Click to collapse
Sometime it may happens if you change your kernel
" If you change your kernel try to flash back your stock kernel"

MDabrar said:
Sometime it may happens if you change your kernel
" If you change your kernel try to flash back your stock kernel"
Click to expand...
Click to collapse
i had never changed my kernel in my opinion, its nk1 stock since beginning and also after flashing rom.

Related

For those who can't connect with Kies

After half an hour trying I have just found a working solution how to connect your SGS in Kies. Here is the deal:
Start Kies, put phone's USB settings in Kies mode. Connect your phone to the PC. Wait until MTP App show "Connected". Go to your PC's Device manager, find Portable Devices and select Disable on GT-I9000. Do not wait for the disabling process to be completed, just disconnect the USB cable. Now connect the USB cable again, wait the MTP App on the phone to show you the message "Connected" and choose Enable on GT-I9000 in Device Manager. After a few seconds your phone should be ready in Kies
I tried this both on x86 and x64 Windows 7 and it works for me.
I hope this will help! And I hope there isn't another thread with this solution. If there is - I'm sorry
i cant wait to get home and try this... another 10h to go
but if this helps ur a geniues
celeronix said:
After half an hour trying I have just found a working solution how to connect your SGS in Kies. Here is the deal:
Start Kies, put phone's USB settings in Kies mode , go to your PC's Device manager, find Portable Devices and select Disable on GT-I9000. Do not wait for the disabling process to be completed, just disconnect the USB cable. Now connect the USB cable again and choose Enable on GT-I9000 in Device Manager. After a few seconds your phone should be ready in Kies
I hope this will help! And I hope there isn't another thread with this solution. If there is - I'm sorry
Click to expand...
Click to collapse
Will put this in the FAQ if we have some confirmations for its effectiveness
when i first bought my phone it worked with kies, but after flashing it to a different firmware there was nothing i could do to get it to connect. i had deleted drivers, re-installed, etc etc but nothing worked. what ended up working was putting the phone in download mode, plugging in the usb to both phone and pc, then putting the phone into recovery mode, and as soon as the recovery menu popped up my device was recognized and the correct drivers were reinstalled and all was fine again
hondaguy said:
when i first bought my phone it worked with kies, but after flashing it to a different firmware there was nothing i could do to get it to connect. i had deleted drivers, re-installed, etc etc but nothing worked. what ended up working was putting the phone in download mode, plugging in the usb to both phone and pc, then putting the phone into recovery mode, and as soon as the recovery menu popped up my device was recognized and the correct drivers were reinstalled and all was fine again
Click to expand...
Click to collapse
If you still have this problem, please try my method and tell me if it works
I had issues and I also tried this method. But it didn't help
Last thing I tried was to format the internal SD. That did the trick for me....
The biggest problem with getting the phone to connect to Kies is two fold:
1) MTP application will ONLY launch from the home screen (touchwiz screen). NOT from any app. drawer / launcher screen
2) If USB mode on the phone is set to Ask on Connection, MTP won't launch due to the USB app. being open (see 1) above)
If you set USB to Kies mode and then ensure you are on the home screen of the phone with nothing else running, Kies WILL connect
Also remember the 16+ size extension bug.
So a full wipe on ur I internal sd card is a good solution just make sure u back it up tour hdd
I also did a "Driver recovery" from Kies and it worked after that. Although MTP driver failed to install for me in this case.
Make sure to update to the latest version of Kies ( Now 1.5.1.0074.45 ) as this version seems far more reliable when connecting the phone
I recently discovered that the culprit of Kies continuously trying to connect to phone was caused by wrong MTP driver selected.
Under WinXP
After phone connected in Kies Mode..Go to Device Manager/Portable device..
If you see a device labeled as "MTP xxx or Portable device.." ,wrong MTP driver or older driver has been used..For my case, a Microsoft 2004 MTP driver was selected.
To fix it.
1) Do a manual driver update..for my case ,i let the driver wizard to search automatically..this round, another newer Microsoft driver was found..in fact 2 of them.. after installing the drivers(Microsoft 2006 MTP driver,2 are listed..). .Now Device Manager/Portable device listed "GT-i9000" ,Kies immediately found my phone.
Driver name that worked are "wpdusb.sys" and "wudfrd.sys" found under \windows\System32\drivers\..
celeronix said:
If you still have this problem, please try my method and tell me if it works
Click to expand...
Click to collapse
You must not understand English. The entire reason I posted a comment was to share how I overcame this issue, so that would mean I no longer have this issue
Probable Fix for Kies
Friends,
I have also faced the same problem (while connecting my SGS via Kies MTP was crashing). It used to work earlier so I started to remove Applications and data in the reverse order of Installation. After I removed "Dolphin Browser HD" and all saved bookmarks it started working.
This may be a probable solution if you also have Installed Dolphin Browser.
~Gaurav
India.
2 different issues.
MTP crashing on phone is independent from Kies on PC cant detect phone.
i couldnt use kies either but i wasnt worried as i hardly have free time now..
this was a simple fix and now it workes perfectly for me.
sorry about the late replay.
thanks
I'm glad that it works for you
try this
try #9 on
http://forum.xda-developers.com/showthread.php?p=8046872#post8046872
You might be interested in my little APK (SGS Toolbox). I first created it to have it read the product code from the nv_data file to allow you to check whether it has been modified after a firmware update. But now I added some extra options, of which one is the option to check whether there are new firmware updates available in KIES by issuing the same request KIES does when checking for new firmware. This way you don't have to connect your phone to your computer all the time to check for new updates in KIES. Note: It sends JM1 as the current firmware version to find the latest. I might send the actual phone's firmware version once I figured out how to find it. See: http://forum.xda-developers.com/showthread.php?t=778244
Thanks, I'll give it a try
Deleted. Wrong thread.

[Q] USB device not recognized

I have my galaxy y flashed with JellyBlast4.1 and also merruk kernel 2.5 then reinstalled stock roms because there are so many processes that appears to force stop..
after so many times I reflashed stock rom, jellyblast and merruk the phone cannot go to CWM properly...them CWM menu sometimes appear then mostly its just merruk image with the ClockworkMod Recovery v5.0.2.6 text....
I can still connect to ODIN mode but several PC cant recognize my device...it says USB device not recognized. I installed Kies old version and new version...I also tried using only samsung usb drivers not the kies packages..but still PC saya usb device not recognized...
what can I still do... I'm not able to use my phone for 3 days already...
I tried to connect and disconnect my galaxy y and connect again but I get the same response from the PC....
I also tried to do the reflashing stock rom process via ODIN on other PC's on several computer shops here in my area in Philippines but still cannot reflash stock rom via ODIN because my device cant be recognized...
I have gone to conclusion that some or a specific component of my phone is damaged already...
should I go to service center already???please I still wanna fix this problem on my own with your supports....I dont wanna spend money on service center yet... also I dont have money...im still a student....huhuhuh
Try to flash stock rom via odin on windows vista os pc or windows7 home basic os
I also faced dis prob on my windows7 ultimate os but on windows vista everytime my galaxy y get recognized
Sent from my GT-S5360 using xda premium
Check your cable (You must use factory one)
USB port : use the main
can you post SS
Try flashing a different merruk kernel and see whether the pc detects your device.
Don't do it many times as there can be chances of hard brick.
usb notb detected
miloboy05 said:
I have my galaxy y flashed with JellyBlast4.1 and also merruk kernel 2.5 then reinstalled stock roms because there are so many processes that appears to force stop..
after so many times I reflashed stock rom, jellyblast and merruk the phone cannot go to CWM properly...them CWM menu sometimes appear then mostly its just merruk image with the ClockworkMod Recovery v5.0.2.6 text....
I can still connect to ODIN mode but several PC cant recognize my device...it says USB device not recognized. I installed Kies old version and new version...I also tried using only samsung usb drivers not the kies packages..but still PC saya usb device not recognized...
what can I still do... I'm not able to use my phone for 3 days already...
I tried to connect and disconnect my galaxy y and connect again but I get the same response from the PC....
I also tried to do the reflashing stock rom process via ODIN on other PC's on several computer shops here in my area in Philippines but still cannot reflash stock rom via ODIN because my device cant be recognized...
I have gone to conclusion that some or a specific component of my phone is damaged already...
should I go to service center already???please I still wanna fix this problem on my own with your supports....I dont wanna spend money on service center yet... also I dont have money...im still a student....huhuhuh
Click to expand...
Click to collapse
Dude install samsung kies don't update try to wait give it like 5 minutes it works for me using windows 7 ultimate
its now getting detected but git stucked on setup connection on odin 1.85,,,id:com on odin has already turned yellow below with 0:[COM5]
thanks for all you that respond to mt post :good:
thankx
Mohamed.Anwar said:
Check your cable (You must use factory one)
USB port : use the main
can you post SS
Click to expand...
Click to collapse
That is very helpful n you save my phone, thankx bro
my phone samsung galaxy y GT 5360 was working just fine...then today i got an update then i downloaded it..n started installing update but it stucked at 88% for long time so i switched it off during installing..n then it is stuck on the start up logo n nothing happens futhur..n whn i connect to it to computer for odin it says unknow device unable to install drivers...pls help i followed all threads !! bt could not found any useful info ~
flash stock rom using odin
Reynaldi said:
flash stock rom using odin
Click to expand...
Click to collapse
I am facing a similar issue. Is there a solution yet ?
My Galaxy Y shows up the Welcome LOGO and goes OFF in say about 10 seconds.
I tried going into recovery mode/ download mode , but the operation lasts for only 10 seconds approximately.
Trying to connect the Phone to my PC fails with some "Unable to connect via USB" kind of a warning.
Any help is highly appreciated.
Hello!
kshashank said:
my phone samsung galaxy y GT 5360 was working just fine...then today i got an update then i downloaded it..n started installing update but it stucked at 88% for long time so i switched it off during installing..n then it is stuck on the start up logo n nothing happens futhur..n whn i connect to it to computer for odin it says unknow device unable to install drivers...pls help i followed all threads !! bt could not found any useful info ~
Click to expand...
Click to collapse
Use linux OS( in computer ) because no drivers are needed there.... :good:
BUT....
I dont know whether ODIN is available for LINUX OS...
Anyway try searching... :good:
walley0 said:
I am facing a similar issue. Is there a solution yet ?
My Galaxy Y shows up the Welcome LOGO and goes OFF in say about 10 seconds.
I tried going into recovery mode/ download mode , but the operation lasts for only 10 seconds approximately.
Trying to connect the Phone to my PC fails with some "Unable to connect via USB" kind of a warning.
Any help is highly appreciated.
Click to expand...
Click to collapse
try connecting without battery
and go into download mode
lvabarajithan said:
Use linux OS( in computer ) because no drivers are needed there.... :good:
Click to expand...
Click to collapse
Will give this a TRY. Nice clicked though
---------- Post added at 11:52 AM ---------- Previous post was at 11:36 AM ----------
sangalaxy said:
try connecting without battery
and go into download mode
Click to expand...
Click to collapse
Are you serious ? Connect it without the battery ?
Weird aah
walley0 said:
Are you serious ? Connect it without the battery ?
Weird aah
Click to expand...
Click to collapse
A usb cable carries power so you can enter download mode without the battery
marcussmith2626 said:
A usb cable carries power so you can enter download mode without the battery
Click to expand...
Click to collapse
"USB Device not recognised"
No luck.
walley0 said:
"USB Device not recognised"
No luck.
Click to expand...
Click to collapse
Make sure keis is not installed (conflicts with odin) and install Samsung drivers
Or try a different pc or Google what to do when phone not recognised - the answers are there
install samsung drivers
noo need of kies
switch off the phone
and then connect ur data cable to ur pc qnd then pressing the
volume down+home key+powerkey u will
enter into download mode ..
then ur phone will be detected by the pc..
Sent from my GT-S5360 using xda app-developers app
Use Odin/download samsung mobile usb driver.exe and restart your comp.
-Your Region Pack Select.
-Flash
Are you serious ? Connect it without the battery ?
Weird aah
Click to expand...
Click to collapse
Surely it will work... :fingers-crossed: :fingers-crossed: :fingers-crossed:

[Q] GS4 i9505 usb-pc issue after upgrade to JB 4.3

Hello everyone,
I registered and post this thread because i give up with problem i get after upgrade my galaxy s4 i9505 to jelly bean 4.3. Pc dont recognizing phone, usb cable is good because when i connecting the charging icon appears. I checked in other pc (in both there is windows 7), I download the last version of usb drivers from official site, i download the last version of Kies3 and it still no connecting. Before upgrade i havent this issue, i also checked other usb cable (both cables are original). I searching for hour any solution, activate developer options and check "usb debugging", also i wrote *#0808# and check mtp (i also tried other options, no result) or I tried launch vol down + power + home, also dont help. So i give up and now i`m hope some hi-tech wizard will tell where i making mistake...
After hours spending on wasting time with this usb connect i started to think about change soft, but here appears another issue... I havent root, and superuser. That is not a finish of trouble! I noticed that i have recovery 3e with some kind of error "e: signature verification failure" when i trying to flash any other soft or custom recovery! I searching for some tips on web, but in all options i allways impended whatever i try: when i try use Rom Manager there is error i havent su, when i try activate SuperSu there is error i havent root, when i try install CWM by MobileOdin there is error i am not su... when i try other aps like Framaroot there is error #5, also in Rom Manager i have info that my Rom doesnt support OTA, when i try change recovery file in System/bin folder by RootExplorer there is again error "u havent root"! I'll go crazy by this trap!
Anyone have any ideas? Please help me :crying:
PS. English is not my strong side. Sorry.
So... can sombody help me or this issue is too much advanced for this forum?
Again please help me.
Dude-K said:
Again please help me.
Click to expand...
Click to collapse
Can you please try to install this driver to your Pc http://uploaded.net/file/xdloq4jw , connect the cables on both side's Pc/Phone , on the screen to your phone there should be a notification(Connected as a media Device,Swipe it down and click that option, There should be MTP and Camera) Try to tick the camera first and let the driver install it and then tick MTP and let it install the driver for that as well , and Make sure to activate USB debugging. let me know. Have anice day.
I lost hope someone will respond ^^ thanks Repulsa for sugestion! But this issue is harder then i thought, I have this drivers already i download drivers from your link in spite of all. After download I re-install it, "installation succesfull finished", after that I connect the galaxy s4 with pc by original cable (the charging icon appears but nothing more ). On screenn nothing happens, nothing appears, there is no this notification that u write (only charging in right, top corner).
I checked three times usb debugging, its active. Help me please
Dude-K said:
I lost hope someone will respond ^^ thanks Repulsa for sugestion! But this issue is harder then i thought, I have this drivers already i download drivers from your link in spite of all. After download I re-install it, "installation succesfull finished", after that I connect the galaxy s4 with pc by original cable (the charging icon appears but nothing more ). On screenn nothing happens, nothing appears, there is no this notification that u write (only charging in right, top corner).
I checked three times usb debugging, its active. Help me please
Click to expand...
Click to collapse
Hi there mate , Try plugging it in to another usb port that comes off a motherboard. Don't use the front ports or usb hub. or either download kies 3 from here http://downloadcenter.samsung.com/content/SW/201312/20131204181418883/Kies3Setup.exeto see if its gonna work or not.have a nice day.
Dude-K said:
Hello everyone,
I registered and post this thread because i give up with problem i get after upgrade my galaxy s4 i9505 to jelly bean 4.3. Pc dont recognizing phone, usb cable is good because when i connecting the charging icon appears. I checked in other pc (in both there is windows 7), I download the last version of usb drivers from official site, i download the last version of Kies3 and it still no connecting. Before upgrade i havent this issue, i also checked other usb cable (both cables are original). I searching for hour any solution, activate developer options and check "usb debugging", also i wrote *#0808# and check mtp (i also tried other options, no result) or I tried launch vol down + power + home, also dont help. So i give up and now i`m hope some hi-tech wizard will tell where i making mistake...
After hours spending on wasting time with this usb connect i started to think about change soft, but here appears another issue... I havent root, and superuser. That is not a finish of trouble! I noticed that i have recovery 3e with some kind of error "e: signature verification failure" when i trying to flash any other soft or custom recovery! I searching for some tips on web, but in all options i allways impended whatever i try: when i try use Rom Manager there is error i havent su, when i try activate SuperSu there is error i havent root, when i try install CWM by MobileOdin there is error i am not su... when i try other aps like Framaroot there is error #5, also in Rom Manager i have info that my Rom doesnt support OTA, when i try change recovery file in System/bin folder by RootExplorer there is again error "u havent root"! I'll go crazy by this trap!
Anyone have any ideas? Please help me :crying:
PS. English is not my strong side. Sorry.
Click to expand...
Click to collapse
4.3 pc Drivers are different from 4.2.2. Install kies 3.
Enviado desde mi GT-P7510 usando Tapatalk 2
Dude-K said:
Anyone have any ideas? Please help me :crying:
PS. English is not my strong side. Sorry.
Click to expand...
Click to collapse
I see the problems are in Windows 7. The USB Conector seems ok. Untick "usb debugging" in ur phone and take a look this page. If dont appears nothing in the device manager, tell me it and i will give ya other solution
EDIT: Other option is:
- Uninstall completely Kies and Kies 3
- Reboot ur pc
- Download the latest version of Kies 3 (drivers are included, only tc what u select in the installation -> dont untick them)
- Conect ur phone to the pc with the USB conector and wait coz the drivers have to be installed. Till Windows dont finish of install them u dont need touch nothing. Good luck
I'm suprised that three peoples trying to help me, thats charming, thank you.
But...
Repulsa I've done what u wrote, I tried plugging s4 to another usb port, one port usb 2.0 and another usb 3.0, always was the same situation, the charging start coming but nothing more, there is no notification on phone screeon or on the pc. Also I tried do this in second pc, in 3 usb ports, but always was the same. After that I tried that what Repulsa and jaswinsky says, i re-install kies. First I uninstall in both pc kies, and i install the kies 3, I reboot my pc and I reboot my s4. Nothing new happens, only charging. Here i want to turn your attention that, I checked in both pc's my younger brothers Galaxy s2, and it havent any problems with connecting! If I plugging Galaxy s2 in this usb ports in both pc, windows 7 havent any problem to recognize phone! Kies and "My Computer" shows the device memory and its working. When I after that disconect s2 and plug in my s4 the same situation happens. Only charging icon, and nothing appears about connection.
After that i tried that what Joku1981 wrote, I untisck "usb debugging" in developer options and i checked the device manager, but there doesnt appears anything. There is not "other device" warning or anything like that. Charging icon appears but pc dont recognizing s4. I would also like to point out that, yesterday I've done with younger brother the format on one of this pc's with hope that will helps but, we format pc, reinstall windows7, reinstall all drivers, and the situation is still the same.
Please help me!
PS. I'm starting think about that the official OTA update do 4.4 will solve the issue..

[Q] LG G2 USB Not Recognized

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?

USB Connecion with PC does''t detect phone (Posting again for help)

I am trying to connect my Grand 2 [SM-G7102] with my pc, but unfortunately, its not detecting my phone. And I don't even have a clue whether it happened because of me or not..
I've already tried several steps to solve my prob but none of them worked.
Like-
1. Rebooting the phone, clearing cache n dalvik cache. (Didn't worked)
2. Uninstalled all its drivers from computer and reinstalling latest one's. (Tried old and new versions, none worked)
3. Installed Kies3 to check its discoverable or not. (Tries to discover but says not recognized)
4. Changing modes from mtp to ptp to adb. (Useless)
5. Cleaning off the pins and using its original data cable. (Switched several cables)
After these steps what I found out is that after fresh installed drivers it attempts to install its own driver which takes too long but after installing it does not get detected in my computer but rather it shows up in device manager with name "SAMSUNG_Android".
I know it cant be rom issue or anything like that, but also I believe its not pin broken issue as it is charging plus when i uninstalled all its drivers the device tries to reinstall its own driver taking 5 minutes but in end it shows "Installing SAMSUNG_Android" and closes.
So please help me out and suggest something .
Thanks in advance .
Are you using Mukulsoni's cm12.1 AIO 2 ROM?
Anubhav001 said:
I am trying to connect my Grand 2 [SM-G7102] with my pc, but unfortunately, its not detecting my phone. And I don't even have a clue whether it happened because of me or not..
I've already tried several steps to solve my prob but none of them worked.
Like-
1. Rebooting the phone, clearing cache n dalvik cache. (Didn't worked)
2. Uninstalled all its drivers from computer and reinstalling latest one's. (Tried old and new versions, none worked)
3. Installed Kies3 to check its discoverable or not. (Tries to discover but says not recognized)
4. Changing modes from mtp to ptp to adb. (Useless)
5. Cleaning off the pins and using its original data cable. (Switched several cables)
After these steps what I found out is that after fresh installed drivers it attempts to install its own driver which takes too long but after installing it does not get detected in my computer but rather it shows up in device manager with name "SAMSUNG_Android".
I know it cant be rom issue or anything like that, but also I believe its not pin broken issue as it is charging plus when i uninstalled all its drivers the device tries to reinstall its own driver taking 5 minutes but in end it shows "Installing SAMSUNG_Android" and closes.
So please help me out and suggest something .
Thanks in advance .
Click to expand...
Click to collapse
Hav u tried USB debugging in Developer options?
VigneshS007 said:
Hav u tried USB debugging in Developer options?
Click to expand...
Click to collapse
yes
Anubhav001 said:
yes
Click to expand...
Click to collapse
hav u tried installing USB driver from the internet?
Same issue
Anubhav001 said:
I am trying to connect my Grand 2 [SM-G7102] with my pc, but unfortunately, its not detecting my phone. And I don't even have a clue whether it happened because of me or not..
I've already tried several steps to solve my prob but none of them worked.
Like-
1. Rebooting the phone, clearing cache n dalvik cache. (Didn't worked)
2. Uninstalled all its drivers from computer and reinstalling latest one's. (Tried old and new versions, none worked)
3. Installed Kies3 to check its discoverable or not. (Tries to discover but says not recognized)
4. Changing modes from mtp to ptp to adb. (Useless)
5. Cleaning off the pins and using its original data cable. (Switched several cables)
After these steps what I found out is that after fresh installed drivers it attempts to install its own driver which takes too long but after installing it does not get detected in my computer but rather it shows up in device manager with name "SAMSUNG_Android".
I know it cant be rom issue or anything like that, but also I believe its not pin broken issue as it is charging plus when i uninstalled all its drivers the device tries to reinstall its own driver taking 5 minutes but in end it shows "Installing SAMSUNG_Android" and closes.
So please help me out and suggest something .
Thanks in advance .
Click to expand...
Click to collapse
a while back I faced the same issue..
if you have already tried uninstalling drivers and reinstalling them, also tried kies and switching cables..
then here is what you do..!
Take a non-metallic, non-conductive slim object (a toothpick can do just fine)..
you have to insert it into the connector end of your phone, gently place it below the tongue of the connector, and lift that tongue-like thing up a little bit..
don't apply extra pressure, or don't try to force things, easy does it just fine..!
all you have to do is push it upwards just a little and then try connecting again..should do it.!
VigneshS007 said:
hav u tried installing USB driver from the internet?
Click to expand...
Click to collapse
Tried every different versions from old to newest
Parantap said:
a while back I faced the same issue..
if you have already tried uninstalling drivers and reinstalling them, also tried kies and switching cables..
then here is what you do..!
Take a non-metallic, non-conductive slim object (a toothpick can do just fine)..
you have to insert it into the connector end of your phone, gently place it below the tongue of the connector, and lift that tongue-like thing up a little bit..
don't apply extra pressure, or don't try to force things, easy does it just fine..!
all you have to do is push it upwards just a little and then try connecting again..should do it.!
Click to expand...
Click to collapse
Thanks but did not work
I was able to connect my phone with PC by choosing it connected as a Camera and then I switched it back to MTP, then it recognised mine. Hope my suggestion helps you
Sent from my SM-G7102 using Tapatalk

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