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),

Sprint SPH-L710 Cannot Connect MTP Device to PC (WinXP)

Hi there..
I'm new user for Sprint SPH-L710 from Indonesia
just wondering is anyone can help me with MTP connection issue
I already install SPH-L710 driver plus Samsung KIES to my PC but when in plug in my L710 to PC there's nothing show up on notification bar like others Samsung device that i have (SPH-D710 & Gtab 8.9 P7300) that show option to see the contain of the device but on L710 there's nothing anly charging, & on KIES is always on Never Ending Connecting progress..
already re-install Driver & KIES but the result is still the same cannot connect to PC except charging
but actually my PC can read my device as MOdem & Port Samsung USB Driver plus i can use Odin to Flash new Firmware..
Already try with USB debugging checked or not checked and still have same result..
i'm afraid is the problem with USB setting but when i dial ##8778# (UPST Mode) is nothing happen (on Epic 4G & Epic Touch when i dial ##8778# the option with USB connection when we plug it to PC) cause i'm form Indonesia & all CDMA device have to Flash the number from Indonesia CDMA Operator. i'm afraid when Flash the number (via Modem USB Setting on UPST Mode) the person who did it is forgot to set back the USB connection & the problem is until now i cannot get contact the person..
is there anyway that i can do to fix this issue...??
Cheers

Actually I'm in the U.S. on sprInt and have the same issue, my device is not activated yet.....also on win xp, I can use Odin as well so I can live, hope someone can help you

It's a random thing happens to a lot of us. Have a read through here to see if any of this may help
http://forum.xda-developers.com/showthread.php?t=1844400

evoer said:
It's a random thing happens to a lot of us. Have a read through here to see if any of this may help
http://forum.xda-developers.com/showthread.php?t=1844400
Click to expand...
Click to collapse
Thanks for helping out
butmt problem is when i plug in my L710 to PC there no notification like usb debbuging or connected to media device etc only sound & charging is it a hardware issue ...??
Cheers

[Q] USB Problems

Hey guys,
Now, my Galaxy Note 2 was rooted. When I connected it with the USB cable to my PC the PC didn't recognize it (it used too, but then suddenly it stopped connecting). It still charges but no new device is detected. No Kies, no MTP, no Odin.
I didn't worry too much, because being rooted I could still do everything using the external sd card.
However then the ROM for Android 4.3 was leaked I stupidly installed the stock version. So, no root, and no capability to mess around with the phone.. I also have no viewable option in Settings to set the device connection to MTP, or PTP mode as usual, but maybe that's because of Android 4.3
I have bought a new USB flex part, opened it and replaced it but it still didn't work.
I download a version of phoneutils.apk and installed (because the one on Android 4.3 didn't have Qualcomm USB settings option) and choose the correct options, but still nothing.
Do you have any idea what may have gone wrong? Or what I can try to do?
I desperately want to root the thing.
Thank you very much! I appreciate any suggestion and reply.

Hi!
This might sound stupid but... have you tried a different USB cable? Or USB port? Sometimes this can solve these kind of issues. Take a look in your computer's Device Manager and see if you have any problems with the USB hub driver. Also try to connect using a different PC and see if that works.
You can try and boot in Download mode (Vol down + Home + Power) and see if ODIN sees the phone. If so, you can flash another stock firmware and see if your USB works then.

Yea tried all that! No success. /:
Phone goes into download mode but Odin does not recognize it..
Ruwin said:
Hi!
This might sound stupid but... have you tried a different USB cable? Or USB port? Sometimes this can solve these kind of issues. Take a look in your computer's Device Manager and see if you have any problems with the USB hub driver. Also try to connect using a different PC and see if that works.
You can try and boot in Download mode (Vol down + Home + Power) and see if ODIN sees the phone. If so, you can flash another stock firmware and see if your USB works then.
Click to expand...
Click to collapse

[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.

[Q] Can't connect to the PC

I have had issues connecting the Note 4 to my PCs. I have tried multiple cables and computers. A usb error appears "Usb Device not recognized" "The last USB device you connected to this computer malfunctioned and WIndows does not recognize it." All PC's are running windows 8. I have tried connecting it via fastboot to flash to stock as well as through ADB and I cannot get anything to read the device.

Are you using the oem cable? Sometimes cheap generic cables give errors. Enable usb debugging and see if that helps. Good luck.

dteze88 said:
Are you using the oem cable? Sometimes cheap generic cables give errors. Enable usb debugging and see if that helps. Good luck.
Click to expand...
Click to collapse
Thanks but I've tried multiple. OEM and aftermakert cables. I found that when I put it in the charger it doesn't detect it as AC. I believe for some reason when the phone is connected to the PC it doesn't switch to MTP, which could cause the issue. I have wiped the phone, tried different roms, and installing plasma kernel. I am at my wits end. I have tried finding sprint's seceret number to dial, supposedly there's a menu to force MTP but I can't find it anywhere.

OK. So I couldn't connect via cable I tried flashing the stock image though mobile odin and now I lost recovery and the phone bootloops. Does anyone know a way to boot into recovery from the external SD card?

I would just flash the OF5 tar and start from scratch. http://forum.xda-developers.com/not...om-sm-n910p-stock-of5-odin-flashable-t3158114

Sounds like it's your computer.
Edit: Any other phone's Samsung or not able to connect? Does your phone charge with any or all of your cables? Hopefully the stock cable.

You need to go to Device Manager and Uninstall/reinstall the drivers pertaining to USB
Uninstall the samsung drivers
After that, unplug your powercord from the laptop
connect the phone to your usb port first and then replug your powercord and turn on your laptop
let the usb and samsung drivers reinstall(auto or manual)(if it detects it normally))

dteze88 said:
I would just flash the OF5 tar and start from scratch. http://forum.xda-developers.com/not...om-sm-n910p-stock-of5-odin-flashable-t3158114
Click to expand...
Click to collapse
I wish I could, the issue is that since I get this USB error, I can't get ODIN to detect my phone.
w7excursion said:
Sounds like it's your computer.
Edit: Any other phone's Samsung or not able to connect? Does your phone charge with any or all of your cables? Hopefully the stock cable.
Click to expand...
Click to collapse
I was able to get my Note 3 to connect with no problem, I was even able to get ODIN to detect it in Fastboot. I have one more cable I am going to try tonight, I have my girlfriend bringing it with her. I may have switched an S4 cable with the Note 4 cable. I hope this is the case.
xxSTARBUCKSxx said:
You need to go to Device Manager and Uninstall/reinstall the drivers pertaining to USB
Uninstall the samsung drivers
After that, unplug your powercord from the laptop
connect the phone to your usb port first and then replug your powercord and turn on your laptop
let the usb and samsung drivers reinstall(auto or manual)(if it detects it normally))
Click to expand...
Click to collapse
I was using my desktop, and I tried this on my laptop. Didn't work. Thanks though! I am wondering if this possibly could be a Windows 8.1 issue...
Anyways, 5.50 to anyone who gets this working.

I accidentally switched cables with my son's s4 and nothing would work. Figured it out and then I could connect to my computer. Could be the same thing lol.

w7excursion said:
I accidentally switched cables with my son's s4 and nothing would work. Figured it out and then I could connect to my computer. Could be the same thing lol.
Click to expand...
Click to collapse
I wish that was the case. I am wondering if it's a windows 8 issue now.

I'm on 8.1 pro, and my devices detects fine under cm12.1.
Have you tried going into Settings > Storage. select the 3 dot menu on the top right and force MTP or PTP detection while device is connected to PC / Laptop?