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[Q] PC not recognizing phone

This issue popped up for me about a week ago. Am running EP1W with Gummy 2.0, but also had it with Infinity ROM Beta.
My PC isn't recognizing the phone when plugged in via USB. The phone does go into download mode, but I get an error in Windows (version is XP) saying the USB device has malfunctioned. This happens on all ports and I've flashed with this computer before. I tried re-installing Odin 1.82 and the Samsung drivers but had no luck. I suspect this is a hardware issue as the phone doesn't recognize the charger when plugged into the outlet. It does charge, however (see attachment).
Has anyone had this issue? Is this fixable or am I basically screwed when it comes to using Odin to flash?

Try rebooting your computer and restoring it to a different time when it did work.
Sent from my SCH-I510 using XDA App

CitizenMolester said:
This issue popped up for me about a week ago. Am running EP1W with Gummy 2.0, but also had it with Infinity ROM Beta.
My PC isn't recognizing the phone when plugged in via USB. The phone does go into download mode, but I get an error in Windows (version is XP) saying the USB device has malfunctioned. This happens on all ports and I've flashed with this computer before. I tried re-installing Odin 1.82 and the Samsung drivers but had no luck. I suspect this is a hardware issue as the phone doesn't recognize the charger when plugged into the outlet. It does charge, however (see attachment).
Has anyone had this issue? Is this fixable or am I basically screwed when it comes to using Odin to flash?
Click to expand...
Click to collapse
I've only heard of completely dead Charge USB ports where it won't charge or plug into anything so it doesn't sound like you're hopeless... I'd try using a different cable and different ports on your pc, though it sounds like its phone related if it does connect and charge/go into download mode but doesn't register that its plugged in

I tried my buddy's charger for his Galaxy S to no success (wall charging, phone didn't recognize being plugged in). Unless the Charge has a specific micro USB, I might be screwed here.

mine's doing the same also. it started off as excessive battery drain - went from -10 to -40 to now draining at -100 to -250 on standby.
earlier this week i started getting the same problems you have. after a few tries of reconnecting i was able to get it back to stock to see if the problem persists and it does. so hopefully i'll be able to make it to verizon this weekend to see if they can fix it. so far it seems it's a hardware malfunction as it works intermittently.

Can't connect to pc-USB not recognized, unknown device

I have been searching for about a week now and still can't figure this problem out. I bought this phone used about a month ago and I haven't tried to connect it to my pc until just recently. I am wanting to root and unlock my phone but I can't connect to pc using usb cord although it will charge it.
I am on GB 2.3.6 vuvkj6, stock.
I have tried 4 different usb cords, 4 different pc/laptops and all usb ports. I have also installed and uninstalled several usb drivers with no luck.
My phone can only get into download mode using a jig. Even in download mode, I can't connect to pc. I have tried using Heimdall, Odin, and kies but it just does not connect.
If I can use a jig to get it into dl mode, does that mean the phones usb port is fine?
I just want to be able to connect with pc. Is it possible to flash using my sdcard? I am thinking maybe the phone is missing something to pick up the usb signal or something.
I am lost, any help would be appreciated.

Maybe, I think it's a phone issue.
Do you still have a warranty?

I bought this phone used, so no warranty. If the jig works, does that mean the usb port is ok?

Does the phone charge when plugged in? Have you tried to go ahead and flash even though it says not recognized?

ligitalipeople
Yes the phone does charge when plugged in. I can't flash using Heimdall or Odin. Any other way of flashing?
I have also put the phone into debug mode with no luck.

Have you done a factory reset?

Yes, I have done a factory reset.

FINALLY! I got it to work.

Can you post back here and tell us what you did to get it working in case someone else has the issue?
Thanks and glad you got it going!

I am not sure what made it work for me. But what I did was "clear memory" on ram. I don't remember how I got onto that screen but I clicked on ram and clear memory.
I then pushed the usb into the pc a few times really fast until pc showed somethnig other than "usb device not recognized". Pc then started to show device connected.

if you are using windows i have found that sometimes the usb ports u used for the phone get stuck to the driver that was there in the first place. So what I do to fix this is go into device manager from the control panel and then uninstall the drivers for the specific port that I am trying to use. While keeping my phone unplugged from the computer I then reinstall the samsung drivers, restart my computer and then try to plug my phone in. 90% of the time that has been what works for me.

Ok, I figured out the problem. It has nothing to do with the drivers or clearing ram memory. My problem is the actual micro usb connection. If is a little loose from side to side and when I push it to one side, it connects no problem.

That is the exact same thing that happened to my wife's phone... luckily it was still under warranty...
Sent from my SGH-T959V using Tapatalk

My phone is out of warranty. At least now I know the problem. It was extremely frustrating trying to figure it out.

[Q] Cannot get pc to recognize skyrocket

So my girlfriends little brother gave me his skyrocket. He asked me to backup his pics, which I did with no problem. I then did a factory reset. After that, my computer does not recognize the phone! I've tried different cables, different computers. My girlfriend has the exact same phone, connects right away.
I even flashed it with a different rom and put ICS on it. No luck! I then proceeded to take it to a phone repair place, thinking it might be the actual usb port. They said they checked out the port, and it look fine. All solder joints were good, no bent pins.
The weird thing is, is that it connects on an average of 1/20 times! It charges perfectly too. The phone doesn't go in and out of charge mode if i wiggle the cable either. I'm kind of confused! Is there a file on the phone that tells the computer what it is when connected? If so, can I manually replace that file? WHAT DO I DO!

When you goto recovery mode can you goto mounts and say mount usb? and does the pc recognize it then?
Sent from my SAMSUNG-SGH-I727 using xda premium

Kind of. We had trouble with it when flashing it. I personally didn't flash it. I watched my friend do it
Sent from my SAMSUNG-SGH-I727 using XDA

You could try installing the drivers again..

You mean on the computer? I did that. No luck. It does connect more often though WITH the drivers.

I had some problems with USB connectivity too. Using the cable that the Skyrocket came with solved my issues.
Have you tried any combination of restarting and reinstalling the drivers?
Swyped from my Nook Tablet, running CM7.

Yes. I've tried multiple cables including the stock cable. Installing drivers, restarting both devices. I have definitely ruled out the cable, the PC ( PC's actually), and the physical USB port.
Sent from my SAMSUNG-SGH-I727 using XDA

I had similar issues, messed with phone for a bit and came up with this
System settings>more>USB utilites
Now I got a screen that says USB mass storage with a button that says Connect storage to PC. Tap Button.
A window will pop up asking to Turn off USB debugging (if on) Tap OK
Connect USB cable to storage (plug USB cord into PC).
You should now be at the USB Mass Storage screen, Tap button at bottom (Turn on USB storage)
I found this to be the way to turn on Mass Storage since I flashed ICS, I believe. Hope this helps you, it took me a little while to figure out.

ChillFactorz said:
I had similar issues, messed with phone for a bit and came up with this
System settings>more>USB utilites
Now I got a screen that says USB mass storage with a button that says Connect storage to PC. Tap Button.
A window will pop up asking to Turn off USB debugging (if on) Tap OK
Connect USB cable to storage (plug USB cord into PC).
You should now be at the USB Mass Storage screen, Tap button at bottom (Turn on USB storage)
I found this to be the way to turn on Mass Storage since I flashed ICS, I believe. Hope this helps you, it took me a little while to figure out.
Click to expand...
Click to collapse
Of course, that's how it's always been except in a slightly different location on ICS

I've tried that also. Didn't work
Sent from my SAMSUNG-SGH-I727 using XDA

it basically sounds like the USB port on the phone is dead. Warranty that sucker

I took it to a repair shop. They said the port was perfectly fine!
Sent from my SAMSUNG-SGH-I727 using XDA

Not to mention that it was working perfectly before I did the factory restore
Sent from my SAMSUNG-SGH-I727 using XDA

how exactly did the repair shop test it?

try plugging it into another usb port on the same computer or try using a different computer. It could be the usb port on the PC itself.

gokartracer5 said:
try plugging it into another usb port on the same computer or try using a different computer. It could be the usb port on the PC itself.
Click to expand...
Click to collapse
That's the first thing he tried, it's in the OP

yeah i've tried everything! The repair shop determined that the port was good by examining it under a scope and they also said they tried re-flowing the solder joints. They said they wanted to stay away from replacing the usb port because it was very difficult to replace, not to mention they didn't warranty the job!

Someone has to know the answer to this!
Sent from my SAMSUNG-SGH-I727 using XDA

if its still under warranty replace it, thats all u can do. No one else in this forum besides u can physically touch the phone, so if you've tried all suggestions thats all thats left

i have the same problem but mine is little different, when i power off the phone it keeps on going to download mode, i keep on restarting it and it goes back to download mode, i flash stock rom and it does the same, i flash ics rom and it keeps on doing the same can anyone help?

Infuse 4g USB problem

When I plug my USB cable into my computer and then into my phone the phone does not recognize the computer and vice versa. It will charge, but that is it. A few weeks ago I tried an AOKP rom which has "fast charge" I set this setting to be on to test it out and then turned it off. Ever since then I have not been able to transfer files with the cable plugged in, so I used AirDroid to wirelessly do it. I remember something in the warning about it, but I thought when you format/wipe and flash a new rom it corrects the issue. I have flashed a completely new rom since then and still nothing. Any help would be nice, thanks.

Try going back to stock through Odin or heimdal
Sent from my HTC PH39100 using XDA

How are you supposed to Odin/heimdall, if it doesn't connect even during download mode?
Sent from my SAMSUNG-SGH-I997 using xda premium

Lol didn't think of that...when I had my infuse I had the same problem with the stock USB cable...after a while data transfer stopped and it became a charge only cable...I would use my dads cable that worked perfect for data transfer...
So try a different USB cord or try a different USB port...
Sent from my HTC PH39100 using XDA

You can try this too
Hi, I faced this issue few times and tried several options like change cable/port/computer and worked.
One thing Recently i noticed when all of the above failed in my case is :- 1 Development->Uncheck the USB debug mode, 2. Check Mass Storage in USB connection setting. ( you need to unplug usb cable while doing it)
Now try connecting and give few minutes. If you can see the USB mass storage notification you are good to go. Go back and change the Debug mode as Checked.
It worked for me couple of times hope it may work for you too.

Cjohns8792 said:
When I plug my USB cable into my computer and then into my phone the phone does not recognize the computer and vice versa. It will charge, but that is it. A few weeks ago I tried an AOKP rom which has "fast charge" I set this setting to be on to test it out and then turned it off. Ever since then I have not been able to transfer files with the cable plugged in, so I used AirDroid to wirelessly do it. I remember something in the warning about it, but I thought when you format/wipe and flash a new rom it corrects the issue. I have flashed a completely new rom since then and still nothing. Any help would be nice, thanks.
Click to expand...
Click to collapse
Sounds like the dreaded USB port failure. Many Infuse users have gone through this as its a known issue. I returned mine and got a replacement via warranty.

Cjohns8792 said:
When I plug my USB cable into my computer and then into my phone the phone does not recognize the computer and vice versa. It will charge, but that is it. A few weeks ago I tried an AOKP rom which has "fast charge" I set this setting to be on to test it out and then turned it off. Ever since then I have not been able to transfer files with the cable plugged in, so I used AirDroid to wirelessly do it. I remember something in the warning about it, but I thought when you format/wipe and flash a new rom it corrects the issue. I have flashed a completely new rom since then and still nothing. Any help would be nice, thanks.
Click to expand...
Click to collapse
Hey There,
We had the same issue with many units and solved all by doing the following:
-Flashing the unit back to stock
-Performing a factory data reset after flashing(This is a must)
Note: Even though your device will not connect to the computer in PDA mode you should still be able to connect in download mode so it can be flashed with ODIN.(Unless if it's hardware related)

No download mode :(

So I flashed my infuse from Froyo to GB to ICS and then to JB...but ironically the same day that i flashed to JB, my download mode stopped working.
Ever since I flashed to JB (CM10 and slimbean so far) My computer says "USB device is not recognized or has malfunctioned" and I cannot put the phone into download mode via 2 buttons and usb cable. When I plug the phone in it just turns on and starts charging and the computer wants nothing to do with it.
I know the USB port works because it charges without a problem. I have also tried 2 other windows 7 PCs, and my macbook. Can't get it into DL mode or to mass storage.
Any ideas?

Sirgatory said:
So I flashed my infuse from Froyo to GB to ICS and then to JB...but ironically the same day that i flashed to JB, my download mode stopped working.
Ever since I flashed to JB (CM10 and slimbean so far) My computer says "USB device is not recognized or has malfunctioned" and I cannot put the phone into download mode via 2 buttons and usb cable. When I plug the phone in it just turns on and starts charging and the computer wants nothing to do with it.
I know the USB port works because it charges without a problem. I have also tried 2 other windows 7 PCs, and my macbook. Can't get it into DL mode or to mass storage.
Any ideas?
Click to expand...
Click to collapse
Just cause it charges doesn't mean it works...that just means the power part works...power and data transfer are two desperate things...I've had cords in the past that after a while stopped working as data cables and became strictly charge only cables...
So, have you tried a different data cord? Its likely the data transfer cables got damaged due to normal wear and tear (these cords arent made to last...)
Sent from my SGH-I997 using Tapatalk 2

Yeah my friend just used it with his note so i know the cord works :\

Sirgatory said:
Yeah my friend just used it with his note so i know the cord works :\
Click to expand...
Click to collapse
Try a different cable, just do it. Denial is not good. I had same problem then got a different , different cable and it worked. As i tried three cables. I do believe one did work to get mass storage but it didn't work to flash my xperia x10, that's what bugged me.don't really remember as i have bricked these phones so may times experimentation ya know, it is hard for me to remember .
as i was flashing my infuse at the same time i used the data cable that does work with the infuse and my other cable wasn't working it wouldn't recognize and ahhh went through my head so after infuse got done i switched cables and vola it worked.
If not then reinstall drivers reboot pc and get a data cable that is really a data cable .
Sent from my SAMSUNG-SGH-I997 using xda app-developers app