Develop Bugs

[Q] USB not recognised

Hi all,
I've read a lot of forums on what seems to be a pretty common issue, however, with each attempt at a fix the answer is still elusive.
the problem i'm experiencing is that when I connect my (unrooted) Galaxy S2 to my pc (running windows 7) the USB device is not recognised. The phone says that it is connected (USB Connect MTP-Connected), however, when I try to access my phone via Kies or explorer it is not there. I also get an error message saying that the 'device is not recognised'.
I've taken the following actions:
- Reinstalled a fresh version of Kies
- Reinstalled samsung drivers (once prompted by Kies)
- Tried at least 3 USB cables including the original Samsung cable
- As per one of the blogs i read, i switched to USB debugging on and then off as there was no effect
- I've tried turning on bluetooth, then connecting the USB device (also a 'fix' i've seen on another forum)
- I've restarted my phone a number of times
- Connected via different USB ports
- Restarted my PC
Could anyone please help me.
Thanks,
Rob

Get a new one
Sent from my SAMSUNG-SGH-I727 using Tapatalk 2

Uninstall all drivers, and Kies.
Restart the computer.
No go to device Manager under Human Interface Device/Universal Serial Bus controllers and see if there is that little yellow triangle there. If so click and uninstall any device with the aforementioned icon.
Now reset again.
Go to the Samsung website and download the drivers for the phone. Restart the computer yet again. Almost done.
Now attach your phone and it should be identified.
Go ahead and install Samsung Kies and you should be ok. I hope all this works.

I had a very similar issue with my last SII. One day it just simply would not be recognized by many computers using various USB cords including the OEM one. Windows always said something along the lines of " USB device not recognized, a device connected to this computer has malfunctioned." The computer would pick it up bit was listed as an unknown device in the device manager. Turns out it was a hardware failure so I had so get a warranty replacement
Sent from my Galaxy Nexus using Tapatalk 2

r0b0_0 said:
Hi all,
I've read a lot of forums on what seems to be a pretty common issue, however, with each attempt at a fix the answer is still elusive.
the problem i'm experiencing is that when I connect my (unrooted) Galaxy S2 to my pc (running windows 7) the USB device is not recognised. The phone says that it is connected (USB Connect MTP-Connected), however, when I try to access my phone via Kies or explorer it is not there. I also get an error message saying that the 'device is not recognised'.
I've taken the following actions:
- Reinstalled a fresh version of Kies
- Reinstalled samsung drivers (once prompted by Kies)
- Tried at least 3 USB cables including the original Samsung cable
- As per one of the blogs i read, i switched to USB debugging on and then off as there was no effect
- I've tried turning on bluetooth, then connecting the USB device (also a 'fix' i've seen on another forum)
- I've restarted my phone a number of times
- Connected via different USB ports
- Restarted my PC
Could anyone please help me.
Thanks,
Rob
Click to expand...
Click to collapse
That happened to me one day....
All I did was reboot my phone and tried a new cable and it worked
Sent from my SGH-T989 using xda premium

Not very helpful answers... you may have sorted this out already but...
One solution found on other threads that worked for me was this:
uninstall Kies
key in the dialer *#7284#
it has 4 option there..
UART (MODEM/PDA)
USB (MODEM/PDA)
Only change the USB setting.
Select PDA, if it already selected, select MODEM, don't hit "back", try reconnect, wait for windows to respond.
Unplug, then select PDA, try reconnect.

usb device not recognised
pardus said:
Not very helpful answers... you may have sorted this out already but...
One solution found on other threads that worked for me was this:
uninstall Kies
key in the dialer *#7284#
it has 4 option there..
UART (MODEM/PDA)
USB (MODEM/PDA)
Only change the USB setting.
Select PDA, if it already selected, select MODEM, don't hit "back", try reconnect, wait for windows to respond.
Unplug, then select PDA, try reconnect.
Click to expand...
Click to collapse
Dear all, I have same problem. I have official ICS 4.0.3 on mz Smasung S2 adn when I connect phone on mz computer i receiving information "USB Device not recognised" I tried all mentioned stuff:
reinstaling driver
cleaning micro stick on phone
hard reset
*#7284#
wipe clear data and cache
but i dont have connection Please help if someone have solution for this. Thanks in advance

srdjan_trisic said:
Dear all, I have same problem. I have official ICS 4.0.3 on mz Smasung S2 adn when I connect phone on mz computer i receiving information "USB Device not recognised" I tried all mentioned stuff:
reinstaling driver
cleaning micro stick on phone
hard reset
*#7284#
wipe clear data and cache
but i dont have connection Please help if someone have solution for this. Thanks in advance
Click to expand...
Click to collapse
Try changing your usb cable. If that still doesnt help, try it on another pc. If still not, then send it to samsung for repair.
Sent from my SGH-T989 using xda app-developers app

PC not recognizing Android USB connectio
romny19 said:
That happened to me one day....
All I did was reboot my phone and tried a new cable and it worked
Sent from my SGH-T989 using xda premium
Click to expand...
Click to collapse
Romny 19, you are dead on. I had thesame problem, read your posting and good to go.
Anyone trying this must remember to power down phone completely (Reboot),

[Q] USB stopped working 4.3

Hi all, how are you?
I have a Galaxy Nexus unrooted stock with Android 4.3 (JWR66V).
After the update to 4.3, my device has stopped working in MTP/PTP mode.
I mean, When I connect my phone to my Notebook USB port, thus nothing happens on my notebook or my phone.
When my phone is connected to my notebook the notification dialog to select between MTP/PTP modes doesn`t show up anymore in the phone (it only says that is charging).
I have tried to re-install the drivers on my notebook, and It didn't fix this issue.
I have also tried to the a factory reset on my phone, and It did't fix the issue either.
Besides, I tried also to connect the phone with a different USB cable and it didn't fix the issue either.
Please, May someone help me?
Thanks in advance

Please, May someone help me?
I have no idea of what is going on and why USB stopped working after 4.3 update?
How do I troubleshoot this issue?any clues?

I figure out that on Android 4.3 I have ti go to Settings->Storage->Usb Computer Connection and manually select the connection mode...
(I am not sure Why the notification pop up doesn't show anymore on the phone when I connect it to the PC using the USB cable)

RogerSilva said:
I figure out that on Android 4.3 I have ti go to Settings->Storage->Usb Computer Connection and manually select the connection mode...
(I am not sure Why the notification pop up doesn't show anymore on the phone when I connect it to the PC using the USB cable)
Click to expand...
Click to collapse
You are totally right... dont know the stu... option doesnt appears clear. On my S3 I did the same, but the option wasnt visible... you must click over USB (even it appearing as dimmed) then a USB CONNECTION (or something like) appears you must click over and then a screen with MPT option will be available... For godsake WHY such thing isnt available on settings or on shortcut menu by default is beyond my understanding.

[Q] The i317M can't connect to ODIN

Hi all,
I just got an i317M with Telus stock JB 4.1.2 firmware, and my PC installed the Samsung USB dirver v1.5.14.0.
When boot up the phone and connect to my PC, I can see the device and no problem to access all the folders.
But, once I put the phone into download mode, the ODIN v3.07 won't see anything connect, nor showed any error message.
The phone already has "USB debug mode" enabled, I'm wondering is that possible someone massed up the USB setting, and here is the detail setting showing on the phone:
Dialed *#7284# get into PhoneUtil, showed both UART and USB are choose "PDA", and the Qualcomm USB Settings is MPT+ADB.
If anyone saw similar situation before, please help me out of this issue.
Many thanks!

watchsat said:
Hi all,
I just got an i317M with Telus stock JB 4.1.2 firmware, and my PC installed the Samsung USB dirver v1.5.14.0.
When boot up the phone and connect to my PC, I can see the device and no problem to access all the folders.
But, once I put the phone into download mode, the ODIN v3.07 won't see anything connect, nor showed any error message.
The phone already has "USB debug mode" enabled, I'm wondering is that possible someone massed up the USB setting, and here is the detail setting showing on the phone:
Dialed *#7284# get into PhoneUtil, showed both UART and USB are choose "PDA", and the Qualcomm USB Settings is MPT+ADB.
If anyone saw similar situation before, please help me out of this issue.
Many thanks!
Click to expand...
Click to collapse
Was it in download mode when you plugged it in?
Sent from my GT-N7105 using xda premium

watchsat said:
Hi all,
I just got an i317M with Telus stock JB 4.1.2 firmware, and my PC installed the Samsung USB dirver v1.5.14.0.
When boot up the phone and connect to my PC, I can see the device and no problem to access all the folders.
But, once I put the phone into download mode, the ODIN v3.07 won't see anything connect, nor showed any error message.
The phone already has "USB debug mode" enabled, I'm wondering is that possible someone massed up the USB setting, and here is the detail setting showing on the phone:
Dialed *#7284# get into PhoneUtil, showed both UART and USB are choose "PDA", and the Qualcomm USB Settings is MPT+ADB.
If anyone saw similar situation before, please help me out of this issue.
Many thanks!
Click to expand...
Click to collapse
Did you install the Samsung USB drivers? That way your pc will see the gadget device and know what to do with it.
EDIT: Odin3 will only work with the Samsung USB drivers, without the USB drives odin3 will never connect to your phone in download mode.
Sent from my SGH-I317 using XDA Premium HD app

I think the settings are modem then pda.

Thanks all your support, finally got it works...
Looks like the i317M is very sensitive about the USB cable.. I was using the same micro-USB cable for S2/S3/Note1 with ODIN never has any issue, that's why I didn't think of the cable will cause this problem.
After swapped 3 different cables, finally the i317M connected to the ODIN with a brand new cable.

[Q] Galaxy S II USB connection to computer not working

When I connect my phone to my computer via USB, the first time it installs drivers and makes a noise. The drivers it installs are "Samsung Mobile Modem Diagnostic Serial Port (WDM) (COM6)", "Samsung Mobile Modem", and "Samsung USB Composite Device."
However, the device does not show up in Windows Explorer, and if I turn USB debugging on, it does not show up as a device I can debug on.
The device is running Android version 4.0.4 with model number SPH-D710.
I have tried installing the Samsung USB Driver for Mobile Phones, but that does not do anything differently when I plug in the phone.
I have tried with both of my cables and it works with neither one.
I have tried dialing *#7284# and changing USB to modem then back to pda and restarting the device, but that makes no difference as well.
The phone used to be a Credo Mobile phone but last year it was flashed to Page Plus. I'm not sure if this could have made the USB connection to the computer stop working as a USB storage device.
The phone shows up in devices and printers as a modem and USB hub.
Any ideas on how I can get it to work with my computer (Windows 7)? I mostly need it to work for USB debugging which is currently impossible.

Wrong forum, belongs here. I've asked mods to move your thread, sit tight until they do.

Found solution
I found a solution:
I had to change it to AP mode by dialing ##8778#. It was set to CP mode, probably from when I had it flashed. Yay!
Found it in this thread: http://forum.xda-developers.com/showthread.php?t=1956802
Thanks for helping me find the right forum.

S4 mini duos not detected by pc via usb cable

I bought in January s4 mini duos
At the beginning i was well without problem I plug it into my pc it is detected without problem I did all my transfer data without problem
I put a day the system to an official 4.4.2 via Odin and all is well detected without the problem
But last week it is no longer detected on pc via usb cable when I plug it will start charging but without any sign of detection of equipment or on phone or pc .
I test other cables , other pc and nothing changes and the problem persists.
Help me please

bicha2016 said:
I bought in January s4 mini duos
At the beginning i was well without problem I plug it into my pc it is detected without problem I did all my transfer data without problem
I put a day the system to an official 4.4.2 via Odin and all is well detected without the problem
But last week it is no longer detected on pc via usb cable when I plug it will start charging but without any sign of detection of equipment or on phone or pc .
I test other cables , other pc and nothing changes and the problem persists.
Help me please
Click to expand...
Click to collapse
Does it connect in download mode? (maybe also try change MTP etc) Different mode uses different USB drivers etc. Have read sometimes a USB port seems to become disabled in one mode but will work in other.
Make sure your USB driver is good. Are you using the same drivers from some "dodgy" website if so uninstall and just allow Windows to find drivers or get from samsung.
You may be able to enter the USB service menu and change settings by entering *#0808# in dialer then select MTP (or maybe *#7284# & set to PDA)
But connector/power board may have a problem

IronRoo said:
Does it connect in download mode? (maybe also try change MTP etc) Different mode uses different USB drivers etc. Have read sometimes a USB port seems to become disabled in one mode but will work in other.
Make sure your USB driver is good. Are you using the same drivers from some "dodgy" website if so uninstall and just allow Windows to find drivers or get from samsung.
You may be able to enter the USB service menu and change settings by entering *#0808# in dialer then select MTP (or maybe *#7284# & set to PDA)
But connector/power board may have a problem
Click to expand...
Click to collapse
same problem in download mode is not detected.
I changed drivers but the problem persists.
when I 'll branch pc displays a notification at the bottom next to the date indicates an unrecognized USB device.

bicha2016 said:
same problem in download mode is not detected.
I changed drivers but the problem persists.
when I 'll branch pc displays a notification at the bottom next to the date indicates an unrecognized USB device.
Click to expand...
Click to collapse
Turn phone off. Remove battery & SIM (though I think it's probably the battery that does the trick). Reassemble & your USB may be back if it's none of the other things and it's not hardware .......:fingers-crossed:
(If it doesn't work 1st time do it again but only reassemble after a minute or two to be certain all power is drained from caps etc.)