Develop Bugs

My phone just won't connect to my PC

I'm running 4.1.1 and every time I plug my device in (With stock USB) I get "USB device not recognized"
I've tried another USB. I've downloaded Kies (Will only connect wifi), I've tried reinstalling drivers, I've tried using another computer as well. I've also enabled/disabled USB debugging,
The USB connection notification only appears sometimes, and even when it does my computer still won't recognize my S3. After I reinstall the drivers my phone does say "Connected as a Media device", but then the notification goes away..
FYI, I'm trying to root, that's why I need a direct connection with my computer so badly.

Does your computer has samsung kies?
You say drivers. Idk what u mean but all we need is samsung kies.

Rovon said:
I'm running 4.1.1 and every time I plug my device in (With stock USB) I get "USB device not recognized"
I've tried another USB. I've downloaded Kies (Will only connect wifi), I've tried reinstalling drivers, I've tried using another computer as well. I've also enabled/disabled USB debugging,
The USB connection notification only appears sometimes, and even when it does my computer still won't recognize my S3. After I reinstall the drivers my phone does say "Connected as a Media device", but then the notification goes away..
FYI, I'm trying to root, that's why I need a direct connection with my computer so badly.
Click to expand...
Click to collapse
This is a link I posted, if you searched you would have found.....
http://forum.xda-developers.com/showthread.php?p=32906335#post32906335

bikrame said:
Does your computer has samsung kies?
You say drivers. Idk what u mean but all we need is samsung kies.
Click to expand...
Click to collapse
Did you even read my original post...?
bobolinko said:
This is a link I posted, if you searched you would have found.....
http://forum.xda-developers.com/showthread.php?p=32906335#post32906335
Click to expand...
Click to collapse
I tried your method a few days ago, and it didn't work. I tried your method again.. it doesn't work.

I had this issue. All I did was get some good ol canned air and blew the dust out of my micro usb port. After that it connects just fine. Was about to do a warranty exchange before I did this.
Sent from my SGH-T999 using xda app-developers app

Beefvvl said:
I had this issue. All I did was get some good ol canned air and blew the dust out of my micro usb port. After that it connects just fine. Was about to do a warranty exchange before I did this.
Sent from my SGH-T999 using xda app-developers app
Click to expand...
Click to collapse
Tried that as well. Neither computer works. Blew into the phone as well ...

Its your rom on the phone that's causing this. If you want to rule it out, why don't you just do a nandroid backup and install stock rom or perhaps the same rom clean from start. I had this issue before and it was fixed with reflashing clean rom.
Sent from S♣ with XDA App

tester420 said:
Its your rom on the phone that's causing this. If you want to rule it out, why don't you just do a nandroid backup and install stock rom or perhaps the same rom clean from start. I had this issue before and it was fixed with reflashing clean rom.
Sent from S♣ with XDA App
Click to expand...
Click to collapse
Read his post, he is attempting to root. How does one backup their rom and restore with a stock recovery.

tester420 said:
Its your rom on the phone that's causing this. If you want to rule it out, why don't you just do a nandroid backup and install stock rom or perhaps the same rom clean from start. I had this issue before and it was fixed with reflashing clean rom.
Sent from S♣ with XDA App
Click to expand...
Click to collapse
I'm not rooted ...

I should probably mention the phone charges will of the USB cables but none of them work with the PC. I can't tell if it's a software issue or internal..

I think it's a computer issue, what was the other computer software you tried on?

mt3g said:
I think it's a computer issue, what was the other computer software you tried on?
Click to expand...
Click to collapse
Tried it with W7 & Mac, neither recognize the device. Android file transfer just tells me "no device found", and the Kies on mac doesn't work either.

I still won't update my computer from XP cause all I read are device errors with upgraded versions of windows... see if you can get your hands on XP and try. Just as insurance, you have gone through device manager and removed all drivers for the phone and then pushed the proper ones from Samsung, correct?

Rovon said:
I should probably mention the phone charges will of the USB cables but none of them work with the PC. I can't tell if it's a software issue or internal..
Click to expand...
Click to collapse
watch the screen closely when you connect the phone to the pc. does it even recognize thst some usb device was plugged in?
After a few moments, (with the phone still connected) click start,right click on my computer, select manage and select device manager.
are there any yellow question marks on the right side under the computer?
Open the modems (click the + sign) is there any SAMSUNG USB Modem? (should have no yellow question mark)
Open Universal Serial Bus controllers, do you see the samsung Mobile USB Composite Device?
There should be NO yellow question marks or exclamation marks anywhere on the right panel.
If there are, there is a problem with your computer settings/drivers or services.
If you followed my "cannot fail" steps EXACTLY in the order I had it, and did not skip anything, you should be without any problems with the modem connectivity. That includes the uninstallation of any samsung drivers previously installed.
If you do not even see the samsung modem, the cables or the phone may be your problem.
Post your results and I'll help you to get it working. Also mention what your compurter's OS is.

mt3g said:
Read his post, he is attempting to root. How does one backup their rom and restore with a stock recovery.
Click to expand...
Click to collapse
My bad, speed reading is not always good... thanks for pointing that out.
Anyway, did the OP ever get this resolved? Bobolinko's steps are thorough and if that didn't fix it, why don't you just try to go into download mode and ODIN a stock ROM with root injected into it already? It's another option...

Did you try buying a fresh new cable to connect the phone to the computer? I only have those issues with corrupted USB cable and a messy laptop...
Also when that notification appears for me I go to my phone USB section and tells it to mount as storage...and if its on storage I switch media than back to storage...always work for me.
Sent from my SGH-T999 using xda premium

bobolinko said:
watch the screen closely when you connect the phone to the pc. does it even recognize thst some usb device was plugged in?
After a few moments, (with the phone still connected) click start,right click on my computer, select manage and select device manager.
are there any yellow question marks on the right side under the computer?
Open the modems (click the + sign) is there any SAMSUNG USB Modem? (should have no yellow question mark)
Open Universal Serial Bus controllers, do you see the samsung Mobile USB Composite Device?
There should be NO yellow question marks or exclamation marks anywhere on the right panel.
If there are, there is a problem with your computer settings/drivers or services.
If you followed my "cannot fail" steps EXACTLY in the order I had it, and did not skip anything, you should be without any problems with the modem connectivity. That includes the uninstallation of any samsung drivers previously installed.
If you do not even see the samsung modem, the cables or the phone may be your problem.
Post your results and I'll help you to get it working. Also mention what your compurter's OS is.
Click to expand...
Click to collapse
As soon as I plug my S3 in, my computer recognizes a USB is active. In Device Manager, I do not have Samsung USB, all I have is "Unknown Device". I'm not sure what you mean by yellow exclamation point in the bottom right, but there's nothing in my notifications. However, I do get 2 yellow exclamations in device manager. One in Universal Series Bus, and one in other devices

Hi there.
Check this
On calls hit *#7284#
Check if pda is enabled then click on qualcomm settings and see if mtb+adb are enabled.
If not then just enable those.
Hope this is your problem.
Good luck.
Sent from my SGH-T999

Leoniums said:
Hi there.
Check this
On calls hit *#7284#
Check if pda is enabled then click on qualcomm settings and see if mtb+adb are enabled.
If not then just enable those.
Hope this is your problem.
Good luck.
Sent from my SGH-T999
Click to expand...
Click to collapse
I've tried this as well. I get this error:
"Connection problem or invalid MMI code"

The problem is with your computer, and not the phone. You CANNOT get it connected with a problem in the USB settings.
click on the yellow exclamation items and DELETE or UNINSTALL them. then reboot the machine and it should reinstall automatically. If your DRIVERS that are already in the machine are bad, you have to get them updated or replaced. uninstall KIES from the computer, reboot, and reinstall it. go to samsung's site and download and install the driver for your comuter.
The one for the xp is: SAMSUNG_USB_Driver_for_Mobile_Phones_1.4.8.0.exe
install it to your computer and be SURE there is no error while it installs.
then check again your device manager list for any yellow problem areas
connect the phone and wait a while, then, disconnect and wait about a minute
then again, connect the phone, and wait at least one minute. open the device manager page and see if there are any yellow area problems again.
are you positive you have the latest window updates?
you can sometimes right click on an item and do the driver update and fix a problem.
You clear all the COMPUTER END PROBLEMS you have and the phone will connect. That, my friend, you can take to the bank.
Good Luck!
Aloha,
post your results later

When device is connect is doesnt go in Connected as media device (MTP)

This is weird my note one always pops up with a windows folder and I just drop my new rom in there but my new I317 when I connect it to the computer is doesnt show up. It will charge the device but does let me get into it so I can drop my rom in there and install any ideas? I did a factory reset and I have all the drivers installed.

blazin6969 said:
This is weird my note one always pops up with a windows folder and I just drop my new rom in there but my new I317 when I connect it to the computer is doesnt show up. It will charge the device but does let me get into it so I can drop my rom in there and install any ideas? I did a factory reset and I have all the drivers installed.
Click to expand...
Click to collapse
type this in your dial pad
*#7284#
go to USBSettingsMenu and tell me what your option is on.
You want it to be MTP+ADB

chousayz said:
type this in your dial pad
*#7284#
go to USBSettingsMenu and tell me what your option is on.
You want it to be MTP+ADB
Click to expand...
Click to collapse
Yep changed it to that shoud on the first page be uart pda and usb be modem?

blazin6969 said:
Yep changed it to that shoud on the first page be uart pda and usb be modem?
Click to expand...
Click to collapse
nope! both should be on MODEM
did it work?

Its did work when I changed them both to pda....I also stopped windows from searching for update for driver....You can then go to device manager see the error on usb com ports and direct which drivers to install from there...When I swtich to modem tho I have to do the drivers thing again.
I remember seeing a post to stop windows from installing thier own drivers just cannot seem where to find it

I installed Busybox Free on my phone (using the simple installer) and it allows my phone to connect to the PC just fine. I also have downloaded Samsung's drivers to my PC.

[Q] galaxy nexus troubleshooting help please

hi, i got this sgn from a friend with a broken screen, and ive now replaced the screen and the phone turns on and boots up no problem. but when i plug it in to my puter, it says usb device not recognized, one ot the usb devices attached.... as well in settings the wifi on/off toggle starts greyed out, if i go into the wifi setup, i can push the toggle and it says turning on wifi, but then after about 20 seconds or so, it just flicks the toggle back to off. bluetooth if i press the toggle, it instantly flicks back to off, and wont turn/stay on. and the last thing i have noticed that is not right, is when i try to go into the camera, it just f/c's and says gallery has has stopped, yet if i go into the gallery, it comes up. but f/c's if i try to access the camera.. i am thinking its probably a hardware issue, just was wondering if anyone might be able to give me any extra insight or suggestions, thanks in advance.
edit: oh, and the phone charges through the usb port, which i find weird that the puter wont recognize it...

slickwidnick said:
hi, i got this sgn from a friend with a broken screen, and ive now replaced the screen and the phone turns on and boots up no problem. but when i plug it in to my puter, it says usb device not recognized, one ot the usb devices attached.... as well in settings the wifi on/off toggle starts greyed out, if i go into the wifi setup, i can push the toggle and it says turning on wifi, but then after about 20 seconds or so, it just flicks the toggle back to off. bluetooth if i press the toggle, it instantly flicks back to off, and wont turn/stay on. and the last thing i have noticed that is not right, is when i try to go into the camera, it just f/c's and says gallery has has stopped, yet if i go into the gallery, it comes up. but f/c's if i try to access the camera.. i am thinking its probably a hardware issue, just was wondering if anyone might be able to give me any extra insight or suggestions, thanks in advance.
edit: oh, and the phone charges through the usb port, which i find weird that the puter wont recognize it...
Click to expand...
Click to collapse
hey,
if you don't mind rooting and phone is not underwarranyty, try: wugfresh nexus toolkit
or cyanogemod.org
may help fix...... and both are automated very easy.

gnexususer said:
hey,
if you don't mind rooting and phone is not underwarranyty, try: wugfresh nexus toolkit
or cyanogemod.org
may help fix...... and both are automated very easy.
Click to expand...
Click to collapse
Yeah, see the problem is my computer won't recognize the phone to be able to perform any of the functions of the toolkit... So I don't know what options (if any) I have...

slickwidnick said:
Yeah, see the problem is my computer won't recognize the phone to be able to perform any of the functions of the toolkit... So I don't know what options (if any) I have...
Click to expand...
Click to collapse
try reboot to odin bootloader. long press volume down + power button. can u boot it up?

memaro_maro said:
try reboot to odin bootloader. long press volume down + power button. can u boot it up?
Click to expand...
Click to collapse
yeah, ive got a usb jig to boot it into odin download mode, but i think i tried it but the computer still didnt recognize it, ill try it again and let you nkow what happens.. also, i have another working sgn here, and i switched out the boards, cause the usb port is not on the mainboard, it is connected by a flex ribbon (thinking it may be a faulty usb port) but either one generates the same results..

You dont need Odin. Just use fastboot and flash the latest Factory image. There are plenty of guides on how to do that. Good luck! If you cant get it to work just let me know.
Sent from my Galaxy Nexus using XDA Premium HD app

slickwidnick said:
yeah, ive got a usb jig to boot it into odin download mode, but i think i tried it but the computer still didnt recognize it, ill try it again and let you nkow what happens.. also, i have another working sgn here, and i switched out the boards, cause the usb port is not on the mainboard, it is connected by a flex ribbon (thinking it may be a faulty usb port) but either one generates the same results..
Click to expand...
Click to collapse
correctly install/setup adb & fastboot first & try ~
http://forum.xda-developers.com/showthread.php?t=2588979
if still not recognize ur device use odin tool, from odin bootloader
odin ~
http://forum.xda-developers.com/galaxy-nexus/general/guide-restore-to-stock-unbrick-galaxy-t2065470

memaro_maro said:
correctly install/setup adb & fastboot first & try ~
http://forum.xda-developers.com/showthread.php?t=2588979
if still not recognize ur device use odin tool, from odin bootloader
odin ~
http://forum.xda-developers.com/galaxy-nexus/general/guide-restore-to-stock-unbrick-galaxy-t2065470
Click to expand...
Click to collapse
okay i tried your advice, but the computer still fails to recognize the phone, i installed the drivers, cause the computer picks up the other sgn that i have here, i just unplugged the one thats fine, and plugged in the one i am trying to fix ant it doesnt do anything,...

Go to System Settings -> Storage -> 3 dots -> USB connection, and set MTP ON (V)
and if that doesn't work, try another DATA cable
.

Ed V said:
Go to System Settings -> Storage -> 3 dots -> USB connection, and set MTP ON (V)
and if that doesn't work, try another DATA cable
.
Click to expand...
Click to collapse
tried setting mtp on, tried setting ptp on, tried setting debugging mode off and on, tried a different cable, still nothing..
something i did notice was that i have another sgn here and i went to the storage settings, and i was able to uncheck both mtp and ptp and my computer installed a new device "samsung something something" cant remember what the new device was tho..
oh and the bootloader is locked on the sgn im trying to fix and it is unlocked on the second sgn i have here...
could that have something to do with any of this?

[Q] Galaxy Ace II cannot be detected by PC (XP/W7/W8)

Hello, I'm the new guy, kind of (I'm new to this forum but somewhat a technological handyman, so to speak).
I had recently obtained a Samsung Galaxy Ace II, everything was going good on the phone, hell, it's what? Two years old now? Anyway, I noticed the immense trouble I've been having trying to get several Windows PCs/laptops to detect anything from the phone, no driver updates, installations, not even from the trustworthy SAMSUNG Kies application. It is becoming a real problem as I really want to keep this phone, root it, installing several ROMs as I go along, but no, the computers won't even allow me to access the contents of my SD card through USB.
(Note: I have manually downloaded and installed SAMSUNG USB drivers and pooft, still nothing!)
I have tried quite a few methods to allow the PCs to establish a connection with the phone e.g. Dialing "*#7284#*, accessing "PhoneUtil", choosing "PDA" as the good mode, even switching to "MODEM" then back to "PDA"; Uninstalling/Reinstalling drivers; Attempting Kies.
I guess I am on the look out for a new-ish phone to replace this, which saddens me as I love being able to root, install various ROMs, Kernels etc, personally I like this phone too, more than my Spica running ICS (couldn't be too hard though, it wasn't stable whatsoever).
If anyone on this board could find a solution to this problem for me, I would be ever so grateful, I don't doubt it though, I love the work of XDA. Thank you.

Turn off the phone with no cable attached, press volume down, home and power at the same time and then volume up to put it in ODIN mode and connect it to the PC (use windows vista or newer so it auto installs the driver) It should install something like Samsung USB serial device. Tell if it works

Do I have to load it into ODIN mode whilst Odin is running on my PC?

[/COLOR]
RyanCM said:
Do I have to load it into ODIN mode whilst Odin is running on my PC?
Click to expand...
Click to collapse
For this test you dont need ODIN on the PC. Its only to see if the PC recognizes the phone

Porobu said:
[/COLOR]
For this test you dont need ODIN on the PC. Its only to see if the PC recognizes the phone
Click to expand...
Click to collapse
I just tested this and it appears not to be working, whatsoever. Is it necessary to have all SAMSUNG USB drivers installed on the PC?
Thank you for the idea, though. I just really want to root/mod my phone, ugh.

RyanCM said:
I just tested this and it appears not to be working, whatsoever. Is it necessary to have all SAMSUNG USB drivers installed on the PC?
Thank you for the idea, though. I just really want to root/mod my phone, ugh.
Click to expand...
Click to collapse
Windows should auto install the drivers. Connect the phone to the PC and see in device manager if there is something like an unknoen device or Samsung USB device

Porobu said:
Windows should auto install the drivers. Connect the phone to the PC and see in device manager if there is something like an unknoen device or Samsung USB device
Click to expand...
Click to collapse
Thank you for the help, although my problem is not dealt with still. I have completed the steps that you had suggested, thoroughly and repeatedly, yet there is no hope for a permanent, or even temporary fix for my mobile.
Windows isn't displaying any correlation between my PC and phone, no driver software auto-installs and no sign of the device being located in the Device Manager, not even under an "Unknown device".
Is this a problem for most Ace II devices? Or am I missing something that is too obvious to consider so seriously?

Porobu once told me something like:
1. Uninstall kies and sammy usb drivers
2. Install kies again, it should promt to install USB drivers.
3. Plug in phone to pc in DL mode.
I'm not sure what you mean in your 1st post so im assuming you have yet to try this. Works for me

When do I plug the USB into the phone and boot my phone into download mode? As soon as the drivers are installed via Kies?

RyanCM said:
When do I plug the USB into the phone and boot my phone into download mode? As soon as the drivers are installed via Kies?
Click to expand...
Click to collapse
After kies installation complete(dont have to open), boot phone to download mode, connect to cable and plug to pc

It sounds like a broken microusb port but try something first.
Download ubuntu or any other live cd linux distro
Boot it on your pc. You dont need to install anything.
Open a terminal
*Plug the phone while it is turned on to the PC
Write in the terminal 'lsusb' without the quotes and press enter
Something like Samsung android device or MTP device should appear.
If it doesnt appear power off the phone and go to odin mode and repeat from the * the steps

Lost transfer via USB

When I plug in my USB cable, it only charges, it no loner allows me to transfer files to my Desktop/Laptop. Nothing shows up on my computer.
When I start my LG PC software it never connects.
How can I set it so when my USB cable is plugged it allows me to transfer files and browse the drive.
I have looked everywhere and the options given does not work on this phone. Is there a setting I may have accidentally disabled??

have you ever connect via USB successful
duckfart said:
When I plug in my USB cable, it only charges, it no loner allows me to transfer files to my Desktop/Laptop. Nothing shows up on my computer.
When I start my LG PC software it never connects.
How can I set it so when my USB cable is plugged it allows me to transfer files and browse the drive.
I have looked everywhere and the options given does not work on this phone. Is there a setting I may have accidentally disabled??
Click to expand...
Click to collapse
Have you ever connect via USB successful?
Remove all LG Software, TOOLS, USB Drivers, and Install latest LG USB driver 3.11
Go device manager to check if all LG device is installed properly, You should find mtp device in the device manager.

asialove2013 said:
Have you ever connect via USB successful?
Remove all LG Software, TOOLS, USB Drivers, and Install latest LG USB driver 3.11
Go device manager to check if all LG device is installed properly, You should find mtp device in the device manager.
Click to expand...
Click to collapse
yes.
everything was going well until today.
nothing worked, I ended up de -rooting and going back to stock to fix it.

Thanks
duckfart said:
yes.
everything was going well until today.
nothing worked, I ended up de -rooting and going back to stock to fix it.
Click to expand...
Click to collapse
Thanks for your information.
Unroot and back to stock do fix the issues?

duckfart said:
yes.
everything was going well until today.
nothing worked, I ended up de -rooting and going back to stock to fix it.
Click to expand...
Click to collapse
How did u go back to stock if u couldnt connect through usb i have the same problem thanx for any help i was able to load a different rom that i had on my flash card thats all bust still no luck

someone help please id like to go back to stock any rom I install I cannot connect through use just charge

I've had this happen on my old phone occasionally, and found I had to turn the phone completely off (not just reboot) and back on to get the computer to recognize the phone again.

I can power off, take out battery, flash new rom ,factory reset ,wipe cache ,dalvic everything and no matter what computer I connect it to it just charges its not a matter of having driver its like the computer doesn't even know I plugged something in. happened after I flashed I think it was dragon rom not even sure or maybe after I updated the ota while rooted or is it you cant ota with cwm/twrp installed

lost transfer via usb
can you tellme what you have done to be able to flash a new rom without having the ability to transfer files via usb thanx still haven't figured anything out. just saw a post about it being enable through the kernel can anyone help with this