Database Develop

usb connection problem

hey guys i have a usb connection problem with my galaxy note.. whenever i connect my phone to my pc the usb connection icon doesnt appear neither any message shows up on the pc, the only thing it does is charge the phone , i even used differnt usb , tried reflashing the rom , thoough im using a custom rom , but no success, but there is one thing when i phone is connected to the pc and during that interval i restart the phone a message appears on the pc at the boot screen ...unrecocnized device connected, as soon as phone proceeds it too disappears.....if you guys know anything about this kindly help me out.....i have to pull my sd card every time i need to put something in my phone

It's possibly due to condensation on micro USB port of your mobile. Try cleaning it with rubbing alcohol and keeping your phone under the sun or in dehumidifier.
Sent from my GT-N7000 using xda premium

abhjit could be right but if you check on all custom rom threads people are having problems with usb connection
the latest ics releases of samsung ( even JB i believe, not sure tho ) have this problem plus full root problem,

Remove driver in windows then use usb it should auto load correct driver
Sent from my GT-S5830 using xda app-developers app

harrisfayyaz said:
hey guys i have a usb connection problem with my galaxy note.. whenever i connect my phone to my pc the usb connection icon doesnt appear neither any message shows up on the pc, the only thing it does is charge the phone , i even used differnt usb , tried reflashing the rom , thoough im using a custom rom , but no success, but there is one thing when i phone is connected to the pc and during that interval i restart the phone a message appears on the pc at the boot screen ...unrecocnized device connected, as soon as phone proceeds it too disappears.....if you guys know anything about this kindly help me out.....i have to pull my sd card every time i need to put something in my phone
Click to expand...
Click to collapse
Do u have install the usb driver of samsung..??
N maybe u can install kies to ur pc..
Sent from my GT-N7000 using Tapatalk 2

fahrie12 said:
Do u have install the usb driver of samsung..??
N maybe u can install kies to ur pc..
Sent from my GT-N7000 using Tapatalk 2
Click to expand...
Click to collapse
yeah i have that ... i can try cleaning the port.

abhijit038 said:
It's possibly due to condensation on micro USB port of your mobile. Try cleaning it with rubbing alcohol and keeping your phone under the sun or in dehumidifier.
Sent from my GT-N7000 using xda premium
Click to expand...
Click to collapse
should i open my cell phone and then thoroghly clean the port or should try cleaning it just as it is.?

harrisfayyaz said:
should i open my cell phone and then thoroghly clean the port or should try cleaning it just as it is.?
Click to expand...
Click to collapse
Just clean it as is. You might be able to see the problem, but you will need a good magnifying glass or loop to see it.
I took some photos I found on the web of a dirty port and colored in the contamination I found on mine.
http://forum.xda-developers.com/showpost.php?p=25102882&postcount=18

I have the exact same problem. My device doesn't get recognised by windows 7. It doesn't ask me if I want to use the phone as a pendrive. When plugged in, it only charges the phone. Sometimes the phone does not even realise that it has been plugged in at all. I dont think that its a problem with the pins because I have tried using an OTG and been able to connect to an external hard drive and copy files. Also I have been able to use PC Odin and flash a stock rom using a usb cable. This makes me think that all the pins are fine, and that its a software problem. Something has got glitched and not getting un-glitched lol!
Current Rom is the here

p51d007 said:
Just clean it as is. You might be able to see the problem, but you will need a good magnifying glass or loop to see it.
I took some photos I found on the web of a dirty port and colored in the contamination I found on mine.
http://forum.xda-developers.com/showpost.php?p=25102882&postcount=18
Click to expand...
Click to collapse
thank you bro for all the help.

SadamHu said:
I have the exact same problem. My device doesn't get recognised by windows 7. It doesn't ask me if I want to use the phone as a pendrive. When plugged in, it only charges the phone. Sometimes the phone does not even realise that it has been plugged in at all. I dont think that its a problem with the pins because I have tried using an OTG and been able to connect to an external hard drive and copy files. Also I have been able to use PC Odin and flash a stock rom using a usb cable. This makes me think that all the pins are fine, and that its a software problem. Something has got glitched and not getting un-glitched lol!
Current Rom is the here
Click to expand...
Click to collapse
one thing you can try.. is to completely uninstall KIES off and remove all samsung usb drivers off your computer. When I say completely uninstall Kies, I mean totally removing it, from your system registry files and including Samsung folders that you can find in Program files or in program files x86..
After that, restart your computer and reinstall Kies and/or all samsung adb /usb drivers again.
Don't forget as well to plug your usb cable at the back of your PC since mostly USB ports coming from the back of it has strong usb signals than the ones at the front.
Hope this helps.
Don't forget to hit me up a 'Thank' if I've helped you some way or the other.
Cheers!

i am also unable to connect my phone in download mode to pc odin ? could this be a hardware issue?

harrisfayyaz said:
i am also unable to connect my phone in download mode to pc odin ? could this be a hardware issue?
Click to expand...
Click to collapse
i also tried cleaning it nail polish remover thoroughly but no success.

harrisfayyaz said:
i am also unable to connect my phone in download mode to pc odin ? could this be a hardware issue?
Click to expand...
Click to collapse
isolate the issue first...get another usb cable, and if you have another computer (aside from the one your normally using at), try to plug your phone on that computer and see if that pc will detect your phone.
If not still, then that's the time you can already consider that your phone might be the one having the issue.

letters_to_cleo said:
isolate the issue first...get another usb cable, and if you have another computer (aside from the one your normally using at), try to plug your phone on that computer and see if that pc will detect your phone.
If not still, then that's the time you can already consider that your phone might be the one having the issue.
Click to expand...
Click to collapse
already done that tried pluging it to another pc and changing the data cable....

harrisfayyaz said:
already done that tried pluging it to another pc and changing the data cable....
Click to expand...
Click to collapse
Well I guess, that would prove the point that it could be your phone that might be having the issue bud. After all, you tried different options already but still came up with the same issue.
I'd suggest you may need to take your phone to SSC and have them check it.

thank you all for your support friends ...i have been able to repair it...i opened the cell phone thoroughly cleaned the usb module and reattached the connection cables after detaching and voila...thank God... :laugh:

letters_to_cleo said:
Well I guess, that would prove the point that it could be your phone that might be having the issue bud. After all, you tried different options already but still came up with the same issue.
I'd suggest you may need to take your phone to SSC and have them check it.
Click to expand...
Click to collapse
thank you friend for your help...:cyclops:

USB

I have problems connecting my OB via USB. First , i've tried 2 no-named micro usb cables but they would only charge my phone . The PC doesn't respond ( no sounds , no connections). I installed and reinstalled LG OB drivers from the official website on 3 different laptops. Now , a friend of mine gave me his Optimus p500 original Usb cable. Same result , the phone is only charging. I really dont know what to do. My phone wont recognize the USB connection and neither the PC won't recognize it.
Suggestions ?
PS : stock rom 2.3.4 v20q and i tried factory reset too.

For my OB i use the cable from my SEVivaz and its work fine, and I use another cable from an Samsung perfectly work too. What rom u use stock or cwf, coz u can make hard reset if cannot use your cable then try again to go in recovery mode
Sent from my Optimus Black using Xparent SkyBlue Tapatalk 2

Maj3sty said:
For my OB i use the cable from my SEVivaz and its work fine, and I use another cable from an Samsung perfectly work too. What rom u use stock or cwf, coz u can make hard reset if cannot use your cable then try again to go in recovery mode
Sent from my Optimus Black using Xparent SkyBlue Tapatalk 2
Click to expand...
Click to collapse
i have the stock GB 2.3.4 v20q . I tried 3 different cables and 3 different laptops but neither the phone or the laptops recognize it. The phone is only charging...... I cannot do any data transfer between the phone and the PC.

I saw the same with my OB. I tried different cables and different PCs. My phone even did not charge properly, most often it only charged when I turned it off completely (sometimes even this did not help, removing / inserting battery helped in this case). Sometimes it charged very slowly but it did show it is charging - just like it did not recognize it has been plugged in. In this situations the whole phone became very hot.
I send the OB to the warranty, they replaced the usb port. This did not help, then I send it to warranty again, they replaced the board, since then everything is fine.

Install USB drivers

Enabled USB debugging?
just sayin....

Zaihanzainal said:
Enabled USB debugging?
just sayin....
Click to expand...
Click to collapse
i tried all the stuffs. Debug on , debug off , mass storage only on / off

is it still under warranty? Then open a case with LG support

[Q] USB charges off PC, but doesn't connect in mass storage mode

So this seems to be the same problem lot of people are facing and solving it by various means... Here is a list of things I have tried, but still not working -
1. connect to PC after selecting "connect to pc" in settings > more > usb connection
2. revert to stock rom and stock kernel using mobile odin and try to do (1)
3. restore nandroid from 2 months ago when it was working
4. cleaning with qtip (dry)
5. tried usb switcher app
6. tried newest jb 4.1.2 from eyebee's thread.
Any thing that I left out other than service center?

Usb Fix
I fixed two other Notes and a SII by this simple method:
Look into the microusb connector on your phone, and see if the pin in the middle is centered. If not, bend it straight (Carefully!).
Yes, I know it sounds stupid, but it seems people just slam the usb connector into the slot, bending it down... This causes the phone to charge but not to see the usb connection.
Hope this helps.

cadcat said:
I fixed two other Notes and a SII by this simple method:
Look into the microusb connector on your phone, and see if the pin in the middle is centered. If not, bend it straight (Carefully!).
Yes, I know it sounds stupid, but it seems people just slam the usb connector into the slot, bending it down... This causes the phone to charge but not to see the usb connection.
Hope this helps.
Click to expand...
Click to collapse
Checked... Its straight, but its placed at 2/3rd towards bottom - Not bent, but is placement itself is at 2/3rds..
Tried to bend it towards top, didn't workout...
What next?

shrinath_m2 said:
Checked... Its straight, but its placed at 2/3rd towards bottom - Not bent, but is placement itself is at 2/3rds..
Tried to bend it towards top, didn't workout...
What next?
Click to expand...
Click to collapse
By default its placed a bit down and forcefully bending it may damage the usb port and then you cant even charge it

Thankfully its still charging...
Sent from my GT-N7000 using xda app-developers app

If you were rooted and have cwm,then go to cwm and select mount and storage<mount usb storage and connect it to your pc

[email protected]$3K#@R said:
If you were rooted and have cwm,then go to cwm and select mount and storage<mount usb storage and connect it to your pc
Click to expand...
Click to collapse
Hmm.. Something new you taught me, but didn't work.. Am I supposed to go "into" that mount usb storage screen and connect after I am in that "if you leave this page, we'll unmount" screen or before entering that screen?
Edit -
Never mind, tried both, both failed to work. I assume if it was working, I would have heard a beep from my laptop at least.. It didn't find any new device in both cases.

try using new cable. or borrow your friend's cable see if its working. its the basic to check thing but many forgotten.

mistajoe83 said:
try using new cable. or borrow your friend's cable see if its working. its the basic to check thing but many forgotten.
Click to expand...
Click to collapse
Tried in office today.. No cable works... Tried 3 cables, one aftermarket one, one is of note's, one from nokia 5800 xpress music...
Didn't workout. All charges. No storage

you installed stock rom.. but didnt work..... so then it is not the firmware
you tried diff cable....but didnt work.. so then it is not the cable.
so then it must be your phone..
can it connect to mtp?

this may sound funny but it worked for me. take out the battery and the sd card. leave it out for a couple minutes. then reboot

tool46x said:
this may sound funny but it worked for me. take out the battery and the sd card. leave it out for a couple minutes. then reboot
Click to expand...
Click to collapse
Didn't work Left battery out for more than 2 minutes. Did you have to press power button when battery is out? Anything else at all?
mistajoe83 said:
you installed stock rom.. but didnt work..... so then it is not the firmware
you tried diff cable....but didnt work.. so then it is not the cable.
so then it must be your phone..
can it connect to mtp?
Click to expand...
Click to collapse
No MTP, no Mass storage
Only charging or hanging it by the micro usb cable, thats all

try using PC odin to flash a new ICS / GB rom and test

What happens when you connect charger to the mains ? If you go to Settings > Battery does it say Charging (AC) or Charging (USB) ?
Ive been having similar issues, But i just thought it was my cable, So ive ordered a new one, Cant confirm yet as I havent received it !

nokiamodeln91 said:
try using PC odin to flash a new ICS / GB rom and test
Click to expand...
Click to collapse
You serious? How do I connect to PC odin if usb is not detected? I can flash using mobile odin, I tried flashing Indian ICS - LR9, flashed Indian CSC, stock kernel too.. Nothing connects.
azzledazzle said:
What happens when you connect charger to the mains ? If you go to Settings > Battery does it say Charging (AC) or Charging (USB) ?
Ive been having similar issues, But i just thought it was my cable, So ive ordered a new one, Cant confirm yet as I havent received it !
Click to expand...
Click to collapse
You might be on to something here - It says Charging (USB) even if connected to wall socket! Should it say (AC)?

shrinath_m2 said:
You serious? How do I connect to PC odin if usb is not detected? I can flash using mobile odin, I tried flashing Indian ICS - LR9, flashed Indian CSC, stock kernel too.. Nothing connects.
You might be on to something here - It says Charging (USB) even if connected to wall socket! Should it say (AC)?
Click to expand...
Click to collapse
yes I am. even though the phone when normally booted won't be recognized by pc, but when in download mode, it usually does as I have had the same problem but that happens to me since I enabled the mass storage mode and then neither worked. mtp or mass storage.
when connected to charger, it shows ac and when connected to pc it shows usb

nokiamodeln91 said:
yes I am. even though the phone when normally booted won't be recognized by pc, but when in download mode, it usually does as I have had the same problem but that happens to me since I enabled the mass storage mode and then neither worked. mtp or mass storage.
when connected to charger, it shows ac and when connected to pc it shows usb
Click to expand...
Click to collapse
Hmmm... seems like I am out of luck here. It goes into download mode, when connected to pc, no ding in pc or no yellow box in Odin...
And yeah, wall socket says charging from usb!
Sent from my GT-N7000 using xda app-developers app

Gave to samsung service center today. Dumb fellows, they replaced USB connector in device, (thats what they said) but still its not connecting to PC. They didn't even flash a firmware. Just replaced connector and gave it back

shrinath_m2
I have the same problem here with my n7000.
Its happened after flashing ics roms. N7000's have some kind of faulty chips which causes emmc brick bug. But the issue we're having is a USB Brick.
Flashed many kernels & roms etc. but still no signs of life :crying:
Different cables & pcs, no luck..
As we are able to use mobile odin only, i flashed stock GB and sent for warranty. I always avoided to trigger binary counter so it was easy for me.
However, results were disappointing. Technician guy said that usb port is working and there is connection between both devices but something blocks usb connection. There were some unremovable files which shouldnt be there and they couldnt delete it as the section was read only accessible.
ADB isnt functioning too..
I guess the only possible way is to find a tech guy capable of replacing emmc to solve the issue from source..
Please let me know if there are any updates from your side.

aqirul yosh
hey try software called StickMount Pro... worked for me

Poor USB Connection

Did anyone else experiencing poor/unreliable usb connection on htc one? I mean it keeps disconnecting randomly while connected to pc, and imediatly connect back again. I wanted to s-off the phone but not succed because of this problem. Tried 2 computers and also 2 usb cables. Should i send it to repair?

kRYySTy said:
Did anyone else experiencing poor/unreliable usb connection on htc one? I mean it keeps disconnecting randomly while connected to pc, and imediatly connect back again. I wanted to s-off the phone but not succed because of this problem. Tried 2 computers and also 2 usb cables. Should i send it to repair?
Click to expand...
Click to collapse
Try cleaning the phone's USB port first (for example using a compressed air can, or any other method you find suitable), maybe it's just some debris in there.
If that doesn't fix it, then yes, off to repair, because it will only get worse over time.

nkk71 said:
Try cleaning the phone's USB port first (for example using a compressed air can, or any other method you find suitable), maybe it's just some debris in there.
If that doesn't fix it, then yes, off to repair, because it will only get worse over time.
Click to expand...
Click to collapse
The problem is that if i charge the phone with that cable it doesn't disconnect at all.

kRYySTy said:
The problem is that if i charge the phone with that cable it doesn't disconnect at all.
Click to expand...
Click to collapse
I would say it's cause the PC connection, uses different/more pins, than a normal charger... so for the time being the charging ones are still good, but not the ones to "talk" to your PC.... since it does "come and go", it could just be debris in there.
Or it could be a hardware problem that could get worse over time.

i will try to clean the usb port and also another usb cable, and i will came back with and response if worked or not

USB data transfer not working.

So i bought a used A2 for 5500 INR.
At first i thought it was a bargain but soon it turned out to be a nightmare.
The phone is full of bugs.
Worst one is that the phone only charges through the usb port. No data transfer of any sort. like an old nokia pin charger.
OTG doesn't work. It doesn't connect to the PC.
Whenever I plug in the OTG/connect it to pc, the usb options are all greyed out (same in the developers options default usb preference).
I can't even use Gcam now bcoz the PC doesn't recognise the device at all, so can't enable Camera2api, can't root, can't install ROMS... can't even buy a new phone cuz i have no money ???
turns out my phone also have the slow Emmc issue ?....read speeds are okay but write speeds are very slow... specially Random write (~10mBps).
I read many people have faced this issues. All those Posts are old, has anyone found a solution.

gareebuser619 said:
So i bought a used A2 for 5500 INR.
At first i thought it was a bargain but soon it turned out to be a nightmare.
The phone is full of bugs.
Worst one is that the phone only charges through the usb port. No data transfer of any sort. like an old nokia pin charger.
OTG doesn't work. It doesn't connect to the PC.
Whenever I plug in the OTG/connect it to pc, the usb options are all greyed out (same in the developers options default usb preference).
I can't even use Gcam now bcoz the PC doesn't recognise the device at all, so can't enable Camera2api, can't root, can't install ROMS... can't even buy a new phone cuz i have no money ??
Click to expand...
Click to collapse

gareebuser619 said:
So i bought a used A2 for 5500 INR.
At first i thought it was a bargain but soon it turned out to be a nightmare.
The phone is full of bugs.
Worst one is that the phone only charges through the usb port. No data transfer of any sort. like an old nokia pin charger.
OTG doesn't work. It doesn't connect to the PC.
Whenever I plug in the OTG/connect it to pc, the usb options are all greyed out (same in the developers options default usb preference).
I can't even use Gcam now bcoz the PC doesn't recognise the device at all, so can't enable Camera2api, can't root, can't install ROMS... can't even buy a new phone cuz i have no money
turns out my phone also have the slow Emmc issue ....read speeds are okay but write speeds are very slow... specially Random write (~10mBps).
I read many people have faced this issues. All those Posts are old, has anyone found a solution.
Click to expand...
Click to collapse
Try to reset the phone and then check the same and you can always use adb over wifi when phone is turned on incase u need but for fastboot u need cabel anyways try installing the correct adb and fastboot drivers check and delete old drivers tis may fix it or take to local shop

KevMetal said:
gareebuser619 said:
So i bought a used A2 for 5500 INR.
At first i thought it was a bargain but soon it turned out to be a nightmare.
The phone is full of bugs.
Worst one is that the phone only charges through the usb port. No data transfer of any sort. like an old nokia pin charger.
OTG doesn't work. It doesn't connect to the PC.
Whenever I plug in the OTG/connect it to pc, the usb options are all greyed out (same in the developers options default usb preference).
I can't even use Gcam now bcoz the PC doesn't recognise the device at all, so can't enable Camera2api, can't root, can't install ROMS... can't even buy a new phone cuz i have no money ??
Click to expand...
Click to collapse
I had the exact same issue only charged and no data transfer or otg I'm computer it shows device description error but headphones worked fine I went to a mi service center and changed the usb port for rs.700 now it works like charm must be a water damaged sub board don't get cheap replacement from Amazon coz they only charge the phone and they miss out fast charging ic
Click to expand...
Click to collapse

I am also facing same issue. Can't transfer data using USB Cable