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 ?

delete

thread can be deleted..

Sounds like your device is damaged, mine works fine.

MrColdbird said:
Sounds like your device is damaged, mine works fine.
Click to expand...
Click to collapse
My thought too, but then again its weird how all the buttons work perfectly when the phone is not charging.
I've tried to use different cables and chargers, but the problem still remains. Same thing when its plugged into my computer

hi sorry for posting here
i just didnt want to start a new thread
my "?" was can we get the back and menu lights to blink with an alert ....say email or txt ?
im trying to find out b4 i buy ?
thanks n sorry for jumping on ur thread

Bump
Sent from my MB525 using xda app-developers app

Re: [Q] back/menu buttons don't work during charge
maybe u should use another charger. broken chargers make this happen oftenly
Sent from my M032 using xda app-developers app

galaxy Y allways headset mode!!

i have a big problem with my phone. it's allways in headset mode!! althought i had unpluged headphone, anyone had this problem!! plz help me!!!

either the rom u using has bugs..
or ur earphone port is damaged..
check then
** rooting is new for me,
nd i am a noob to root....**

menewtoroot said:
either the rom u using has bugs..
or ur earphone port is damaged..
check then
** rooting is new for me,
nd i am a noob to root....**
Click to expand...
Click to collapse
i had update other room, then bug. when i plus headphone, it worked pefect.....

jayzu2512 said:
i had update other room, then bug. when i plus headphone, it worked pefect.....
Click to expand...
Click to collapse
Just download the latest stock rom from sammobile website and flash it via odin ...
Ur prob will get solved ...
Or yu can even try to do a factory reset from settings menu ... and see if it helps.
Sent from my Galaxy Grand i9082

headset mode?
do we have headset mode for SGY anyway?
please provide more info as to what happened,
maybe a hardware problem with speakers

jayzu2512 said:
i had update other room, then bug. when i plus headphone, it worked pefect.....
Click to expand...
Click to collapse
May i knw which rom u are using.??
Whatever it is just flash ur nandroid backup..(if any)
Or flash via odin nd flash all the ota's again nt just the latest ine untill the bug is fixed
** rooting is new for me,
nd i am a noob to root....**

Ok
Did you try rebooting
That is first thing you should try
Sent from my
you'll never know

Better is to flash a stock rom and the check if the problem persists.
Sent from my GT-S5360 using xda premium

jayzu2512 said:
i have a big problem with my phone. it's allways in headset mode!! althought i had unpluged headphone, anyone had this problem!! plz help me!!!
Click to expand...
Click to collapse
Actually issue is your devices fm antina must be missing and for that u will have to replace the entire pcb. That's what my lg service center guy had told me when I had encountered with the same in my lg device. It will cost u at least rs. 2000
Sent from my GT-S5360 using xda premium

jayzu2512 said:
i have a big problem with my phone. it's allways in headset mode!! althought i had unpluged headphone, anyone had this problem!! plz help me!!!
Click to expand...
Click to collapse
u have to change ur headphone jeck....u can change if ur professional hardware technician of mobile phones...
other wise go to mobile repairing shop...
or if ur handset is in warranty then first go to service center.

I had a problem with earphones also.
http://forum.xda-developers.com/showthread.php?p=39978093
Solved it with an app called "toggleheadset2" available at google play.
Check it out, should solve your problem also

Help
wtf i already had this problem headset is only working but phone speaker. I already try reflashing stock rom. Actually i dropped my phone only a bit meter to the ground my phone speaker today. anyone what happened to my phone is my phone speaker damage. Even system sounds i cant hear only working in headset. Anyone please help me.:crying:

dropping your phone usually dont create big problems. Dropped it a million times
Sent from my GT-S5360 using xda premium

sasuke150 said:
dropping your phone usually dont create big problems. Dropped it a million times
Sent from my GT-S5360 using xda premium
Click to expand...
Click to collapse
You're lucky even you dropped your phone a million times it didn't create a big problem.
I only dropped my phone about 10-15 times or 10-20 times that the cause of my speaker have been damage

[Q] Note 3's note charging/connecting to a PC

Hi,
My brother has a Galaxy Note 3 (the LTE version. N9005) which has been brilliant up until just now, where it can't charge nor connect to a PC.
He's tried using both the microUSB 3.0 cable that came with it - both connecting to a computer and to charge - as well as a microUSB 2.0 cable to charge... Neither has worked.
He's on stock, no rooting whatsoever (not that kind of person).
Is this a hardware problem or is there anything that could solve this before we send it off to warranty?
Any answers are greatly appreciated...
UPDATE: Its suddenly charging again... But we'll see what happens... In the meantime, can anyone offer an explanation?
Sent from my GT-P7510 using Tapatalk HD

I have the same problem with the phone not being recognised by the computer or charger. Strange thing is that the computer recognises the phone in download mode via odin (an kies for a while). And it has been charging while in download mode connected to kies or odin.
I initially thought it was a bad third party rom i had downloaded and tried to change to another rom. It was back to charging for a bit and then after a day stopped again. Tried to reset to factory rom and bricked the phone in the process (as stupidly checked reactivation lock and clicked a wrong button when titanium backup asked if I wanted to restore the previous id - spent 2 days to unbrick it.....
But now I'm back to the phone not being able to charge or being recognised by the computer. Even the OTG cable isn't recognised. HELP pleaseeee someone. First issue with a Galaxy since the S3/S4/Note1/Note2.
Any thoughts as to what the issue could be? Someone mentioned that it could be a setting in phoneutils menu (if USB set to modem it wont recognise - has to be set to PDA). But the *#7284# command doesnt seem to work on the Note 3. Does anyone know how to invoke the phone utility menu?
I might have to take it back to Samsung - only that I have rooted it and knox shows it!!
Update :
I sent the device into the service centre this morning and explained the problem. The guy at the counter didn't bat an eye while telling me its likely a usb port problem and that he would try to check it and get it turned around within a day. When I asked him if others had similar problems, his response seemed to indicate that it wasn't an uncommon problem. They even had plenty of spares for the port.
I got a text within 2 hours telling me that the unit was fixed. They didn't give me any hassle about the unit being rooted but I guess with a hardware issue, it shouldn't have mattered anyway.
So far so good with the unit. Just thought I'd update you guys.

arul said:
Update :
I sent the device into the service centre this morning and explained the problem. The guy at the counter didn't bat an eye while telling me its likely a usb port problem and that he would try to check it and get it turned around within a day. When I asked him if others had similar problems, his response seemed to indicate that it wasn't an uncommon problem. They even had plenty of spares for the port.
I got a text within 2 hours telling me that the unit was fixed. They didn't give me any hassle about the unit being rooted but I guess with a hardware issue, it shouldn't have mattered anyway.
So far so good with the unit. Just thought I'd update you guys.
Click to expand...
Click to collapse
Sorry to revive an old thread, but is it just a hardware problem then?
The phone suddenly started charging again shortly after your reply, so we didn't have this problem for months.
The phone got repaired after quite a bad incident, and now its not charging or connecting to a PC again.
There's a Samsung service centre down the road from where I am so we're planing on going tomorrow. Just wanted to see whether it was hardware or software related...
Sent from my GT-I9300 using Tapatalk

This maybe aswell related to cache, you could go into the st9ock recovery and wipe cache (no need to factory reset) Ive used this method to solve connecting issues with note 3 to computers.

dogmatism said:
This maybe aswell related to cache, you could go into the st9ock recovery and wipe cache (no need to factory reset) Ive used this method to solve connecting issues with note 3 to computers.
Click to expand...
Click to collapse
And that causes no side effects whatsoever?
It also doesn't charge via AC, so could jt fix it as well..?
Sent from my GT-I9300 using Tapatalk

Clearing cache does not create any problem/ harm. The ones ive tested had connecting issues data/debug ... but showed charging... but no harm in trying your luck eh?

dogmatism said:
Clearing cache does not create any problem/ harm. The ones ive tested had connecting issues data/debug ... but showed charging... but no harm in trying your luck eh?
Click to expand...
Click to collapse
Hoping it'll work indeed... since we're overseas we can't exactly claim warranty either, though I'm not sure it'd even pass for warranty anyway
Sent from my GT-I9300 using Tapatalk

Fixed it, we just took it down to the service centre the guys there replaced the USB port for free (after a bit of complaining on our part, we had already paid quite a bit to repair the thing after a freak accident)
@dogmatism, thank you for your help anyway!
Sent from my GT-I9300 using Tapatalk

good foe you...
you never mentioned abt a physical damage/accident.

dogmatism said:
good foe you...
you never mentioned abt a physical damage/accident.
Click to expand...
Click to collapse
This problem happened before the freak accident, but it just fixed itself somehow, so wasn't much of an issue until now.
Sent from my GT-I9300 using Tapatalk

LG G2 - Absolutely bricked - nearly lost all faith in it ever being fixed.

Hi guys,
Basically, I'm officially new to XDA although I have utilised the site previously for helping others.
My rooted, LG G2 is now bricked, by attempting to upgrade to Kit Kat because of an issue with the microphone, which had stopped working about 2 months back.
The only screen it will show is in the attachment.
Essentially, I tried to upgrade the phone whilst it was rooted, by using the LGmobileAX methods posted all over the forums however each time I attempted, the application crashed, on any OS/PC that I attempted with. After days of trying, I gave up and though I'll remove the root, make it legit and try the LG PC Suite method. (Note, part of my un-rooting process, USB debugging mode etc was disabled).
After running a "detect upgrade errors" (not sure if that's the correct terminology) in LG PC Suite, I'm unsure if the USB was disconnected in the process, or the operation failed nevertheless when I'd unplugged the USB, tried to power cycle, the only response I now get is the above screen.
The phone has just been in a local "phone repair shop" for the past week, apparently all their "software guys" cannot fix it.
I'm desperate now, this iPhone 4s donor is upsetting me.
If anyone has any ideas, or even will take the phone off me for a repair fee, I'm quite happy to do that.
Thanks in advance,
Chris

Try my solution
http://forum.xda-developers.com/showthread.php?t=2687768

MK45A said:
Try my solution
http://forum.xda-developers.com/showthread.php?t=2687768
Click to expand...
Click to collapse
Thanks mate, definitely worth a shot.

cphilpott84 said:
Thanks mate, definitely worth a shot.
Click to expand...
Click to collapse
Or use this one

bender_007 said:
Or use this
Again, cheers, I'll give it a bash.
Still haven't actually retrieved my phone from the shop although I must admit, this is very similar to what I've already tried however I'll definitely give it a try.
Click to expand...
Click to collapse

bender_007 said:
Or use this one[/URL]
Click to expand...
Click to collapse
Hello mate, only just got my phone back and attempted again your resolution.
Can't seem to find the .tot file, on the linked sites from the above threads.
Are you aware of another download location?
Thanks,

have you tried reflashing using the normal back to stock method ?
Also have you tried a full factory reset ? the way to do it has changed, power off phone fully, press and hold the volume down and power button, when you see the lg logo release and press and hold Volume up and volume down, hope this helps

BackDaws said:
have you tried reflashing using the normal back to stock method ?
Also have you tried a full factory reset ? the way to do it has changed, power off phone fully, press and hold the volume down and power button, when you see the lg logo release and press and hold Volume up and volume down, hope this helps
Click to expand...
Click to collapse
DID IT! Woooooop.
After 4 weeks in a phone shop, being passed around 4 different software developers, I've fixed it.
Failed a few times originally however using the LG Mobile Support Tool and the Upgrade Recovery option, worked. Recovered back to how my phone was before being bricked, also then upgraded to KitKat as part of the process.
So happy, it's unreal.

Brilliant mate I bet you're buzzin
Sent from my LG-D802 using Tapatalk

BackDaws said:
Brilliant mate I bet you're buzzin
Sent from my LG-D802 using Tapatalk
Click to expand...
Click to collapse
So much mate, feel like returning the shop I dropped it with, asking them if they ever need me to help out, they know where I am! lols.

Lmfao hahaha
Sent from my LG-D802 using Tapatalk

cphilpott84 said:
DID IT! Woooooop.
After 4 weeks in a phone shop, being passed around 4 different software developers, I've fixed it.
Failed a few times originally however using the LG Mobile Support Tool and the Upgrade Recovery option, worked. Recovered back to how my phone was before being bricked, also then upgraded to KitKat as part of the process.
So happy, it's unreal.
Click to expand...
Click to collapse
Awesome man. The LG Support tool is what they use in the factory to image and recover warranties.