Database Users

Yesterday my Phone became an unrecognized USB device

After months of no problems yesterday I plugged my phone in for its nightly charge and noticed that it did not trigger the usual USB mount prompt.
I assumed it was Windows, but I have a bunch of machines and operating systems so I checked and they all has the same result. I switched out cords and did a complete power reset (taking battery out) no change.. The Phone charges through the USB but the computers say "unrecognized usb device" and cannot mount the phone as a drive and the phone does not offer the option as it used to???
I don't recall getting any sort of update that might have related to this?
This is the original T-mobile version

This happens to me all the time. However a restart of my phone and computer solves the issue.

DarkAgent said:
This happens to me all the time. However a restart of my phone and computer solves the issue.
Click to expand...
Click to collapse
Neither of those things worked for me. There's gotta be something else to it.

jrocka01 said:
Neither of those things worked for me. There's gotta be something else to it.
Click to expand...
Click to collapse
Go over changes you made to your phone recently.

only flashing another ROM worked for me... try reflash ur ROM, and wipe stuff if it doesnt work

DarkAgent said:
Go over changes you made to your phone recently.
Click to expand...
Click to collapse
This all started when I manually installed 2.3.4. Everything else works fine. I'm not the only one with this problem.

roshga said:
only flashing another ROM worked for me... try reflash ur ROM, and wipe stuff if it doesnt work
Click to expand...
Click to collapse
How do you do that without USB connectivity?

It is very frustrating, maybe a hardware fail? I see just enough post relating to the issue that makes me know it is real but not sure how to resolve,, Do we have to go to Best Buy? or is there a direct Samsung route?

This too happens to me. Whenever I plug it into my laptop on the top USB slot, it doesn't recognize it. If I plug it in on the bottom USB slot, it does. Not sure why. This, however, is only the case if I'm using a different USB cable than the one that came with the phone itself. Once again, not sure why.
Perhaps you are using an alternative USB? Or plugging in on the top? Not sure how I can help you more than that, sorry. Hope you find a fix!
Sent from my Nexus S using XDA App

Have you tried a different USB cable?
Sent from my Nexus S using Tapatalk

unforgiven512 said:
Have you tried a different USB cable?
Sent from my Nexus S using Tapatalk
Click to expand...
Click to collapse
Using official OEM cable that came with the phone. And, again, USB worked fine until I manually installed 2.3.4.

Well It is off to Samsung for repair
After time on phone with them and a factory reset belief is that the usb connector is defective. BTW Best Buy just hands off to Samsung 1-800 #
So Back to a barely functional G-1 for a while, glad I could find it!

DarkAgent said:
This happens to me all the time. However a restart of my phone and computer solves the issue.
Click to expand...
Click to collapse
Recently started happening to me, needed to transfer some files off, had to resort to dropbox etc.. rebooted phone+computer ,still not working.
Came good a few days later using same equipment, same cable,
Mysteriously fixed itself ?

Nexus S USB connection issue.

Last week when I plugged my USB cable into my phone, it acted normal. The screen where it asks me if I want to connect USB came up, and I said yes. Everything was normal. It was baller.
Today, that doesn't happen. The screen doesn't come up and all the USB cable does is charge my phone, much like the wall plug does.
I've tried to install USB drivers, but they always require me to find "Android" in Device Manager, and it's never in there. The USB cable is doing nothing but charging my phone.
I managed to add a few mp3s over wifi, just to make sure that was actually working.
The phone is not rooted, (I was actually just going to try to do that) and everything is stock aside from a few apps.

I would really like some insight on this, please.
Do I need to get the phone replaced? Am I doing something wrong?

OK, I new to this, but thought I'd comment. If USB debugging is turned on, my seems to do that.
Settings -> Applications -> Developement -> USB Debugging
Beowins said:
I would really like some insight on this, please.
Do I need to get the phone replaced? Am I doing something wrong?
Click to expand...
Click to collapse

Did you change your kernel recently?
Sent from my Nexus S using XDA Premium App

sagech said:
Did you change your kernel recently?
Sent from my Nexus S using XDA Premium App
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Click to collapse
I've done nothing to the phone. Only installed a few random apps.

sorry to hi-jack your thread!
mine does exactly the same, but all i've done is manually update to 2.3.4 and my usb hasn't worked since, like you i've tried installing the drivers and that's done nothing and its also in usb debugging.
i don't know what to do or how to get it to work again, all my searching on here and via Google don't bring up much

Beowins said:
Last week when I plugged my USB cable into my phone, it acted normal. The screen where it asks me if I want to connect USB came up, and I said yes. Everything was normal. It was baller.
Today, that doesn't happen. The screen doesn't come up and all the USB cable does is charge my phone, much like the wall plug does.
I've tried to install USB drivers, but they always require me to find "Android" in Device Manager, and it's never in there. The USB cable is doing nothing but charging my phone.
I managed to add a few mp3s over wifi, just to make sure that was actually working.
The phone is not rooted, (I was actually just going to try to do that) and everything is stock aside from a few apps.
Click to expand...
Click to collapse
Put your phone into bootloader mode and try whether it detect or not?
And also, see if there is two line of words written
USB init start
USB init end ;-)
Sent from my Google Nexus S using XDA Premium App

Try another usb cord, and especially if you're using the samsung cord.
I had the same issue but when I switched to my Htc cord and my blacbkberry cord, everything worked as it should.
Sent from my Nexus S 4G using Tapatalk

plmiller0905 said:
Try another usb cord, and especially if you're using the samsung cord.
I had the same issue but when I switched to my Htc cord and my blacbkberry cord, everything worked as it should.
Click to expand...
Click to collapse
ive just tried my works blackberry usb cable and it works fine now! very odd! thanks for your help

onslack said:
sorry to hi-jack your thread!
mine does exactly the same, but all i've done is manually update to 2.3.4 and my usb hasn't worked since, like you i've tried installing the drivers and that's done nothing and its also in usb debugging.
i don't know what to do or how to get it to work again, all my searching on here and via Google don't bring up much
Click to expand...
Click to collapse
Wow, this is my post, verbatim. Any ideas or fixes?

plmiller0905 said:
Try another usb cord, and especially if you're using the samsung cord.
I had the same issue but when I switched to my Htc cord and my blacbkberry cord, everything worked as it should.
Sent from my Nexus S 4G using Tapatalk
Click to expand...
Click to collapse
Wow, you're right. My HTC cord worked. Thanks a lot.

I have had this happen on to me and have determined that a) the long cable that came with the NS4G is unreliable when used for USB connectivity with my PC. Shorter cables (even the shorter Samsung cable that came with my Epic) work consistently. I am guessing that this is a USB Bus power issue and some people will have better mileage than others using the stock cable, depending on their PC.
b) on a few occasions, it seems I've somehow borked the PC's USB controller and the PC wouldn't recongnize anything until I rebooted it.

window7 said:
Put your phone into bootloader mode and try whether it detect or not?
And also, see if there is two line of words written
USB init start
USB init end ;-)
Click to expand...
Click to collapse
I am getting the
USB control init
USB control init end
when in bootloader and when doing the i press vol up and vol down (triangle with android in it" with downloading below).
I would like to flash my phone to factory using Samsung Simple downloader for NS4G.
Background, installed Ice Cream but didn't have radio.img so used an SU to downgrade back to 2.3, did that but no mobile network. Then the phone updated to 2.3.6 and now getting that error. Any help will be appreciated.
I searched a few times on this forum and on google.com no luck. tried to adding a recovery file manually and zip it as update.zip and install from bootloader no luck. (use file explorer and dropbox to get files on to phone).
Thanks
Amar Bar

i had this issue a few months ago, turns out the usb port on the phone got defective so i could only charge it but not use the mass storage function, had to get it replaced under warranty! hope this isnt the issue with you guys

innisdb said:
i had this issue a few months ago, turns out the usb port on the phone got defective so i could only charge it but not use the mass storage function, had to get it replaced under warranty! hope this isnt the issue with you guys
Click to expand...
Click to collapse
Was your phone rooted at any point before the issue? Not sure if they would fix it under warranty for me. I will call Samsung and see.

Thanks, I tried that but no luck. Still need to tried other cords. Also.

My phone developed this problem a couple days ago. I haven't done much to troubleshoot it...figured the port must be damaged.
(Not using the Samsung cable, btw)

AardvarkAdventure said:
My phone developed this problem a couple days ago. I haven't done much to troubleshoot it...figured the port must be damaged.
(Not using the Samsung cable, btw)
Click to expand...
Click to collapse
It might be the port. I will have to get a samsung cable and try it, but i doubt it will help. Plus i can tell Samsung I tried everything. (I looked a ticket, but they said get a samsung cord, they don't trust the Palm Pre cord i am using).
I had to downgrade to the HTC Hero until i get the phone fixed.

[Q] Touchscreen goes mad when usb connected

So, yeah, just like what the title says. My NC's touchscreen goes mad when I connect it to my PC (Haven't tried on laptops cuz I don't have one). Well, it doesn't happen to all of my PC's (I've got 3), only the one with 64-bit Win7. And I've tried changing the cable with LG's (forgot the device but whatever) but it's still the same. I've searched on google and most people asked for a replace to fix it (My NC's warranty is over). Is there any other way to fix it? This problem is not a big deal to me (since it didn't occur with my other PC) but it's pretty annoying.
Thanks
EDIT : I'm using CM7 dual boot with PA both in emmc, if this helps

RizqiN said:
So, yeah, just like what the title says. My NC's touchscreen goes mad when I connect it to my PC (Haven't tried on laptops cuz I don't have one). Well, it doesn't happen to all of my PC's (I've got 3), only the one with 64-bit Win7. And I've tried changing the cable with LG's (forgot the device but whatever) but it's still the same. I've searched on google and most people asked for a replace to fix it (My NC's warranty is over). Is there any other way to fix it? This problem is not a big deal to me (since it didn't occur with my other PC) but it's pretty annoying.
Thanks
EDIT : I'm using CM7 dual boot with PA both in emmc, if this helps
Click to expand...
Click to collapse
Mine does that when connected to my charger block. Don't know if there is a repair. I think it is a ground loop. You might try the Nook Screen Recalibrate app from the Play Store. That should not help, but may.
Edit: You can also use a standard micro USB cable and see if that helps. Standard micro USB cables can be used for computer connections but do not work well for charging.
Sent from my Nook HD+ running CM10 on Hybrid SD

leapinlar said:
Mine does that when connected to my charger block. Don't know if there is a repair. I think it is a ground loop. You might try the Nook Screen Recalibrate app from the Play Store. That should not help, but may.
Edit: You can also use a standard micro USB cable and see if that helps. Standard micro USB cables can be used for computer connections but do not work well for charging.
Sent from my Nook HD+ running CM10 on Hybrid SD
Click to expand...
Click to collapse
I've tried using other usb cable but it's still the same. I'll try that app after I got home. Thanks

Okay, I tried the app but it doesn't fix my problem
Thanks for the advice

This has been an issue on and off, happening to some but not others.
Sent from my Galaxy Nexus using xda premium

It happened with me when i was using remotedroid my touchscreen went mad as soon as i installed the app some how i was able to uninstall it
Sent from my LG-P920 using xda premium

My nc gone mad (spontaneous switchings) with noname charger, but works good with branded nook charger
imho this maybe power supply quality problem.

[Q] Nexus 7 wont connect to a PC or charge while on anymore

I've starting having an issue with my Nexus 7 where it wont charge anymore when it's running, even with the supplied USB charger and cable. If I turn it off it charges fine.
It's got CW recovery and it's rooted, so I thought that it may have developed a software issue and I would just wipe it with the stock rom and recovery and see how it goes.
However I selected debug and plugged it into the PC and the PC doesn't see the device and the device itself doesn't even detect its connected and show the notification. I've also tried on a macbook with no joy.
Using rom manager and CWM I have wiped the device and installed a different ROM (CM 10.1) and still no luck. Also, if it helps, the OTG cable with stick mont works fine.
Any ideas and thanks in advance.

Try a new usb cable...
Sent from my Nexus 7 using xda premium

I have tried a few cables now, and it's still that same.

Try a completely different computer other than the 2 you have issues with. You can also try wiping your driver's out and reinstalling them. If all else fails, pup the back off and check the solder joints and the flex cable of the USB.
Sent from my SPH-D710 using xda premium

I've just tried it on a different machine running Ubuntu this time and still nothing.
I'm going to guess that because of the unlocked boot and CWM recovery the warranty wouldn't be covered? If that's the case, how hard is it to pop open the back?
Thanks

No warranty till it is completely stock and locked. It's not hard at all. There are many tutorials you can find.
Sent from my Nexus 7 using xda premium

Thanks graydiggy. I'll see what tutorials I can dig up...
One thing that's strange is that it does charge when off, so you would assume the power joints are ok, and the OTG cable works so you would assume the data joints are fine.

Opened it up, everything seems fine, nice and tight inside.
Sent from my Nexus 7 using Tapatalk HD

Also having this problem today. Has a solution been found outside of returning the tablet?

Please help me with this issue
I have the same problem with my nexus 7
Does anybody found something?
Write to [email protected]
Thx

TF300t rooting

I have a quick question. It seems that my tablet has lost its ability to connect through USB recently. I was unable to send pictures to the pc one day and have bought numerous cables to no avail. Looks as if, somehow, it just wont connect through usb. The original cable was acting up during charging anyway. My main question is, how do I root without the ability to connect to a pc? Is this at all possible? I was rooted before but since installing the newest update, 10.6.1.27.5-20130902, i noticed it wasn't rooted anymore.Am I pretty much SOL? BTW, nowadays the tablet wakes up and beeps like every other minute while charging. Dont know if its related. I wish I didnt do the update altogether.

Updating to the latest firmware (at last check) hides the developer options from the settings. Your problem might be that USB debugging was disabled or never was enabled.
To add developer settings back into the settings, you need to go into the "about tablet" in settings and tap the build number 5 or so times and then developer options should show up.

tayden812 said:
I have a quick question. It seems that my tablet has lost its ability to connect through USB recently. I was unable to send pictures to the pc one day and have bought numerous cables to no avail. Looks as if, somehow, it just wont connect through usb. The original cable was acting up during charging anyway. My main question is, how do I root without the ability to connect to a pc? Is this at all possible? I was rooted before but since installing the newest update, 10.6.1.27.5-20130902, i noticed it wasn't rooted anymore.Am I pretty much SOL? BTW, nowadays the tablet wakes up and beeps like every other minute while charging. Dont know if its related. I wish I didnt do the update altogether.
Click to expand...
Click to collapse
If its a cable problem, the cable only costs 5$ on amazon.

I'm on my third replacement cable already. Also, developer options are turned on. USB debugging is on as well. They charge fine but connecting them directly to any computer i have does nothing, almost like not plugging it in at all. Have tried on three different setups that worked before, Win 7 X64, Win 8 X64, Win XP X86.

tayden812 said:
I'm on my third replacement cable already. Also, developer options are turned on. USB debugging is on as well. They charge fine but connecting them directly to any computer i have does nothing, almost like not plugging it in at all. Have tried on three different setups that worked before, Win 7 X64, Win 8 X64, Win XP X86.
Click to expand...
Click to collapse
Disable the developer options and USB debugging. Windows may be trying to recognize the ADB instead of trying to mount partitions.

cmendonc2 said:
Disable the developer options and USB debugging. Windows may be trying to recognize the ADB instead of trying to mount partitions.
Click to expand...
Click to collapse
Tried that too. Doesn't seem to work either way.
Which worries me severely.

If you haven't already, install the google sdk adb drivers and see if that works, though from what it sounds like that's not the problem.
I'm thinking bad usb port on computer... try wireless adb if you can...
Sent from my TF300T

might be that the plug at your tablet got damage some how? maybe not fully damaged but partialy, do u have a dock? if you have you have any problem with it?
sorry for my bad english
Greetings!

Don't have the dock. Went to the Best Buy out here and they don't got it. Worst case scenario, my port is jacked up, can I still root without it? If so what steps can I take to do so?

depends on if you have a custom recovery like twrp if you do, then you should ok flashing supersu package, otherwise you are in the worst case scenario...
Sent from my TF300T using Tapatalk

Drahric said:
depends on if you have a custom recovery like twrp if you do, then you should ok flashing supersu package, otherwise you are in the worst case scenario...
Sent from my TF300T using Tapatalk
Click to expand...
Click to collapse
THought so. The update completely killed my recovery as well. Doh! Thanks for the help guys.

If your still under warranty then you could get it fixed but from what sound like that wont help...
Take care.
Sent from my TF300T using Tapatalk