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[Q] Phone not recognizing USB cord at all

I'm running Darky's 6.0 Rom with xcaliburinhand's kernel. I began to realize my phone wouldn't charge when I plugged it into the charger. I tried flashing to stock using odin but once I'd get into download mode via the long-press menu when pressing the power button (because other methods that involve plugging in the cord and pushing buttons doesn't work since it's not recognizing the cable). I don't think it's a faulty cable or port since everything was working before I flashed the ROM. Anyone have any ideas on how to get the computer to recognize the phone so I can flash stock??
edit: When I do plug in the phone to the computer, I'll sometimes get a message saying the device isn't recognized.
(And yes I do have drivers installed.)
Also, I tried flashing other ROMs via CWM but I get error messages on all that I try. Such as can't mount .dev/block/st19 and can't mount SYSTEM
Edit: After a while I've noticed that it in fact is charging but the battery icon doesn't show it's charging. And in settings it shows it's not charging. But battery level is increasing

Have you tried a different computer to see if the usb port is bad?
Sent from my SAMSUNG-SGH-I897 using XDA App

Does it charge when you plug it into an ac adapter? You can also try reinstalling the drivers and see if that helps and/or try a different usb port. I've had issues with the drivers before.

Also try a different cable. My cable became defective somehow where xp no longer recognized it, yet would still show charging on the phone. All was back to normal after I got another "data/sync" cable.
Sent from my SAMSUNG-SGH-I897 using XDA App

I don't have a different computer to try it on but I've tried different ports. It's not the computer because it still won't show it's charging when I plug into the wall. And yes I think it does charge when it's plugged into a wall but it doesn't show it or turn on when I plug the cord into the phone. I don't think it's hardware. It has to be software since it just happened when I flashed the ROM. Also whenever I open contacts I get a force close of acore (a little off-topic, but still another issue). I also have tried reinstalling drivers. But also, it doesn't work when plugged into a wall charger. So it's definitely nothing with the computer

I just need to know if anyone knows how to force the computer to recognize the phone so I can flash to stock and hopefully that'll resolve the issue
update: I also tried v7 via CWM and no luck still.

Well I update xcaliburinhand's kernel by transferring it over bluetooth and that installed fine over CWM. Then I tried updating Darky's rom to v7 and that worked too. I booted up and got a million FC's. Tried to get into recovery and it just sits at AT&T screen. It's very tricky to even boot up the phone, and even when I do I can't do anything because of all the Force closes. I can't get back into recovery mode with any button combinations and when i try via the power long press I can get into download mode fine, but I still have the issue with the computer not recognizing it, so it's useless. Anyone have any ideas????? I'm getting sick at staring at this AT&T boot screen for so long. I have no idea of what to do next. Someone please help!!

Sorry to say it, but it sounds like your phone has serious hardware problems.

opcow said:
Sorry to say it, but it sounds like your phone has serious hardware problems.
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Is there nothing I can do? Because I'm pretty sure I'm way past return date, and I didn't have a warranty.

well it sounds that you have messed it up. your installation is probably wrong somewhere, in fact i am even sure, but i dont want to hurt anybody.
do a clean install from scratch starting everything with ODIN (ie download mode)
first off all load a ancien but correct kernel, because in fact you don't even know what you lagfix is. load one of the zenkins kernels (ya-ok) no matter one of the recent ones.
start and go back into recovery, and adjust lagfix to ext4 only. not ext4/ext2
don't use not either the integrated voodoo.
it will format everything.
the again into recovery and disable lagfix
that will then reformat everything into rfs, that what it's needed.
then you go again into reboot and flash one of the ancien .tar files like xwjpa.
and then it shoudl startup.
and you can take it from there.

zoubidou said:
well it sounds that you have messed it up. your installation is probably wrong somewhere, in fact i am even sure, but i dont want to hurt anybody.
do a clean install from scratch starting everything with ODIN (ie download mode)
first off all load a ancien but correct kernel, because in fact you don't even know what you lagfix is. load one of the zenkins kernels (ya-ok) no matter one of the recent ones.
start and go back into recovery, and adjust lagfix to ext4 only. not ext4/ext2
don't use not either the integrated voodoo.
it will format everything.
the again into recovery and disable lagfix
that will then reformat everything into rfs, that what it's needed.
then you go again into reboot and flash one of the ancien .tar files like xwjpa.
and then it shoudl startup.
and you can take it from there.
Click to expand...
Click to collapse
Please read earlier posts... I cannot get into recovery mode and the computer won't recognize download mode.

mikel.canovas said:
Is there nothing I can do? Because I'm pretty sure I'm way past return date, and I didn't have a warranty.
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Unless you have a bad USB cable causing all the weirdness with both charging and the PC connection, but that wouldn't explain all the other strange errors. It sounds to me like the phone is terminally ill.

opcow said:
Unless you have a bad USB cable causing all the weirdness with both charging and the PC connection, but that wouldn't explain all the other strange errors. It sounds to me like the phone is terminally ill.
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Click to collapse
Doesn't there have to be a way to revert to stock if it's all because of the ROM? I really don't want to just give up and throw away a semi-new Captivate and have to break contract to buy another one.

mikel.canovas said:
Doesn't there have to be a way to revert to stock if it's all because of the ROM? I really don't want to just give up and throw away a semi-new Captivate and have to break contract to buy another one.
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Click to collapse
I've seen no accounts of bad flashes causing problems like you described. Particularly the phone not being detected in download mode and the AC charging funkiness. Besides, you already tried reflashing it and not only did that not help, it revealed all sorts of other symptoms.

opcow said:
I've seen no accounts of bad flashes causing problems like you described. Particularly the phone not being detected in download mode and the AC charging funkiness. Besides, you already tried reflashing it and not only did that not help, it revealed all sorts of other symptoms.
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Ok. Thanks. If anyone else has any other ideas. Please post

I've had the Captivate for around 4 months. Does anyone know if I short out the phone and say it got really hot then shut off, they will exchange it?

mikel.canovas said:
I've had the Captivate for around 4 months. Does anyone know if I short out the phone and say it got really hot then shut off, they will exchange it?
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Click to collapse
Or you could just rob a liquor store and use the proceeds to buy a new one.

USB not mounting and computer does not detect

Ok I have drivers installed and USB debugging is off all the normal stuff and the phone beeps but storage does not show so I can mount the computer does not detect??

Go into settings wireless and networks USB utilities and toggle the setting in there.
Sent from my SAMSUNG-SGH-I727 using xda premium

Try to plug your phone in another USB

MJHawaii said:
Ok I have drivers installed and USB debugging is off all the normal stuff and the phone beeps but storage does not show so I can mount the computer does not detect??
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Click to collapse
Sounds like PC to me, happens reboot PC and phone if it does not help I would suggest plugging it into another computer. If it works then try your computer again. This happened to me before with an external hard drive. Hope you get it worked out.

This also happened to me, it was working properly before but it just stopped. It seems that the phone always detects that there is a USB connected even if there was none, evidence is it is always in the charging state when I check the battery status. I think this is a hardware problem. I'm still looking for a solution for this.

brevin.antonio said:
This also happened to me, it was working properly before but it just stopped. It seems that the phone always detects that there is a USB connected even if there was none, evidence is it is always in the charging state when I check the battery status. I think this is a hardware problem. I'm still looking for a solution for this.
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USB issues like this will never make sense to me. It's working fine and then not, back and forth. I too am looking for a resolution.

MJHawaii said:
Ok I have drivers installed and USB debugging is off all the normal stuff and the phone beeps but storage does not show so I can mount the computer does not detect??
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Click to collapse
I've never UNCHECKED USB Debugging.... during Odin connections or transferring files between phone and computer. As soon as I plug USB into phone, the USB symbol appears in notification bar and then I press notification to transfer files between computer and phone. My SR internal and external storage are recognized as drive letters on the PC. Try leaving USB Debugging checked and see if that works for you.
Sent from my SAMSUNG-SGH-I727 using XDA App

I had this problem using my front USB port on my computer.
When I switched to the rear USB port, it worked fine.
Well... it kills my DVI KVM every time. But the PHONE works.

djgoodonyafanboy said:
USB issues like this will never make sense to me. It's working fine and then not, back and forth. I too am looking for a resolution.
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i highly believe this is a hardware problem because mine started when the phone overheat and turned itself off. I already tried resetting to factory setting but still the problem persisted.

brevin.antonio said:
i highly believe this is a hardware problem because mine started when the phone overheat and turned itself off. I already tried resetting to factory setting but still the problem persisted.
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good point there have been instances where I have had to switch ports to get it to work.

I remember also having the same problem with a USB cable I used with my captivate. This cable worked well with the captivate but when I plugged my Sky, I had the same problem as you. It took me a while to figure it out and change the cable.
Hope it help

y2whisper said:
Go into settings wireless and networks USB utilities and toggle the setting in there.
Sent from my SAMSUNG-SGH-I727 using xda premium
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Thank you.

Hey guys. I recently came across the same problem as the OP.
My phone will not detect that it is connected to a computer, and the computer will say that the device is not detected/has malfunctioned.
I have tried a factory reset, I have tried USB debugging, checking and unchecking, I have tried going into USB Storage and hitting the connect to PC button.
The phone does not connect using any of the 6 USB ports. It does not connect to my home or work computer. I have used two different cables, the stock and a third party one. (I have always used stock, never any third party until now to resolve this issue.)
This problem also came out of the blue, no changes were made. The phone is stock no rooting or flashing. Although that was the plan, but now it seems pointless.
Judging from the responses on many websites, I would have to say it's a software issue that can't be resolved. Or maybe a hardware issue. Either way I'm sending it into Rogers (Canadian carrier it originated from) tomorrow if I can't fix it by tonight.
I would love help from the outside public, but please respond with suggestions that are more intricate than to hit the connect to PC button, as I have exhausted all of those options already.
If this is a random occurrence, (and it seems like a common problem from all the results I get when searching for answers) then this phone model really needs to have a fix or something down the road soon, because this is ridiculous.
EDIT: Also tried reboot of the PC. It's Windows 7 64-bit so shouldn't need drivers either, and it was working fine last week.

If u did all that, u did ur due diligence in troubleshooting the problem. I almost guarantee ur mini-usb is dead, or maybe damaged so that it still allows charge but won't connect to computer. Send it in to Rogers, they should give u a temp phone in the mean time becuz its under warrantt

Yeah I figured something hardware related decided to crap out on me.
Is there a specific cause for this to happen? I plan on rooting and flashing different roms when I get the phone back, and don't want to have this happen again out of warranty, or else I'm screwed.
I try to take good care of my phone, so it's weird that this happened. If it is a common problem, then I guess I'd have to be careful to not do anything on my phone that's not reversible.

icenight89 said:
If u did all that, u did ur due diligence in troubleshooting the problem. I almost guarantee ur mini-usb is dead, or maybe damaged so that it still allows charge but won't connect to computer. Send it in to Rogers, they should give u a temp phone in the mean time becuz its under warrantt
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Replacing the usb port on some devices arent solving the issue.
For example, i have a usb bricked GT-N7000 and technician said that usb port is working on another device but there is something blocking usb mounting in the emmc. I dont have a bricked emmc, but the thing is i have been searching all over to find a fix for this thing more than a year now.

Help! Need to Root NS4g w/o computer!

I'm not new to android whatsoever.. I've just returned from an Iphone 4s cause i was missing the openess of android. Now.. i've pulled out my old Nexus S 4g, Updated it to 4.0.4 and i cant get it to connect to my computer for the life of me! tried 4 different cables, 5 different computers, every driver i could find and nothing. I've come to believe this is a software failure... All i need is root and i will be able to sleep at night. Could someone package up .zip to give root and twrp recovery that i could flash through stock recovery? I dont know else i could do to get root... but this problem is becoming quite annoying.

Perhaps your usb port on your Nexus S is broke? Does it charge?

Try and I guess the term would be wiggle the micro USB cord and see if the computer makes the sound it makes when a device is plugged in.
My old phone was dropped by my brother. Would charge fine but wouldn't be seen by the computer without fiddling with port.
Sounds unlikely this is your case though. Since you said it worked prior to a update.

[Q] No USB connection

So I hadn't really messed with my tablet in quite some time, but I recently came across a ROM I wanted to try (Team EOS 4 - Nightlies TF101 ). My tablet was already rooted running TWRP 2.4. I tried connecting my tablet to my PC to copy the ROM over to my microSD, but it would not recognize as a MTP Device. It would show up under USB Controllers in Device Manager, but as Unknown. I tried to reload the drivers, but was unable to get them to load. I just figured something was going on with my PC. So I copied the ROM straight to my microSD card and put it back in my tablet and flashed. Something went wrong (probably user error), because the tablet would't boot afterwards. So I thought no big deal, I'll just use EasyFlasher and take it back to stock. Put my tablet in APX Mode, but same thing. Unrecognized USB Device. Tried loading Naked Drivers, but it didn't see my tablet as compatible device. So I connected it to my laptop, same thing. So then I downloaded the stock firmware, put it on my MicroSD card, put the card back in my tablet and flashed it back to stock through TWRP. It booted up just fine, but I ran out of time to mess with it because I had to be at work. I just took my tablet and cable with me to work and figured I'd do it there if I got a chance. Later in the day, I connected it to one of our PCs at work, and now it wont ever recognize anything at all is being plugged in. Tried on multiple PCs and even brought it back home, and same thing. Tried to scan for hardware changes, and still nothing. What are the chances there is something wrong with my cable? I have rolled the cable up and carried it around with me in my pocket multiple times. The fact I can't get it to be seen as a MTP and / or APX device is what makes me think it could possibly be my cable. Any suggestions?
Thanks in Advance.
emoti0n

Yeah first thing to try would be the cable. Sadly there's no other way to access APX than through USB. I'm guessing if you can push/pull using ADB or other tools, the tablet itself is just fine.
I bought this cable and it works fine for both data and charging, it just takes a long time to arrive.

Lethe6 said:
Yeah first thing to try would be the cable. Sadly there's no other way to access APX than through USB. I'm guessing if you can push/pull using ADB or other tools, the tablet itself is just fine.
I bought this cable and it works fine for both data and charging, it just takes a long time to arrive.
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Thanks for your reply Lethe6. I was able to get in-touch with a friend I hadn't talked to in awhile and use his cable (TF300) and it worked just fine as MTP and APX. I even flashed back using EasyFlasher. Also thanks for the link. It's worth the wait IMO. I was scared to order just any ol'cable and find out that it only works as a charging cable, and not data.

Sweet, glad it all worked out!

Phone will not connect as USB

I'm currently on Beans 13 rom and noticed that I cannot connect my phone to my computer via usb, all it will do it charge, I will not get a notification to use usb mass storage or anything like that. I uninstalled the drivers, rebooted my computer and phone, installed the drivers again and still does not give me the usb notification.
I then remembered that I did a nandroid on Beans 12 so I loaded that up and tried connecting to my computer and had the same exact issue. I took my phone to my roommate's laptop who also has a verizon S3 and tried connecting to his laptop. Still just charges, no notification.
I connected his S3 using the same exact cord to my computer and my computer recognizes his phone (although he is 100% stock).
I decided to try and Odin back to 100% stock. I loaded up Odin on my computer (Win 7 Pro 64 bit) and rebooted my computer into the odin/download mode and my computer/odin didn't recognize my phone. At this point I am at a lost. I have a suspicion that maybe the usb port on my phone went bad but in order to replace it with Verizon, I need to odin back to stock. Any one have any ideas?
I apologize if this has been covered before, I used the search and didn't see anything relating this.

NITRO_2 said:
I'm currently on Beans 13 rom and noticed that I cannot connect my phone to my computer via usb, all it will do it charge, I will not get a notification to use usb mass storage or anything like that. I uninstalled the drivers, rebooted my computer and phone, installed the drivers again and still does not give me the usb notification.
I then remembered that I did a nandroid on Beans 12 so I loaded that up and tried connecting to my computer and had the same exact issue. I took my phone to my roommate's laptop who also has a verizon S3 and tried connecting to his laptop. Still just charges, no notification.
I connected his S3 using the same exact cord to my computer and my computer recognizes his phone (although he is 100% stock).
I decided to try and Odin back to 100% stock. I loaded up Odin on my computer (Win 7 Pro 64 bit) and rebooted my computer into the odin/download mode and my computer/odin didn't recognize my phone. At this point I am at a lost. I have a suspicion that maybe the usb port on my phone went bad but in order to replace it with Verizon, I need to odin back to stock. Any one have any ideas?
I apologize if this has been covered before, I used the search and didn't see anything relating this.
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I'm having the exact same problem with my GS3. The problem started after I flashed Beans B13 as well. I directly downloaded MDOB (it's a stock rooted ROM) and flashed it, but I am still having the issue. I haven't been able to figure it out either. Hopefully someone on here can help us out!

Well I think I solved the problem - at least for me. I tried the USB cable from my Dad's Droid X. Plugged the phone into the computer and everything works. No errors and the drivers installed correctly. I tried the cable that came with my phone (the one I have always used and has worked up until now) and it doesn't work. I get the error with it, but as soon as I use the one from the DX again, it works! Not sure why that is but I would say give it a try for sure! Let me know if it works for you too!
By the way, I got the idea from this thread:
http://forum.xda-developers.com/showthread.php?t=1719539
Take a look if trying the new cable doesn't work!

DROIDLOVERX2 said:
Well I think I solved the problem - at least for me. I tried the USB cable from my Dad's Droid X. Plugged the phone into the computer and everything works. No errors and the drivers installed correctly. I tried the cable that came with my phone (the one I have always used and has worked up until now) and it doesn't work. I get the error with it, but as soon as I use the one from the DX again, it works! Not sure why that is but I would say give it a try for sure! Let me know if it works for you too!
By the way, I got the idea from this thread:
http://http://forum.xda-developers.com/showthread.php?t=1719539
Take a look if trying the new cable doesn't work!
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Thanks for replying back! I meant to add a post. I got my phone working again. My roommate and I took apart the tip of my usb cable (the one that came with the phone) and noticed the green wire was broken off, so we soldered it back on and my phone was able to connect to my computer finally. Although it wasn't a strong connection and kept disconnecting.
For now I'm using a different cable from my hp touchpad and it's working perfectly fine so everything is all good now
Sent from my SCH-I535 using Tapatalk 2

NITRO_2 said:
Thanks for replying back! I meant to add a post. I got my phone working again. My roommate and I took apart the tip of my usb cable (the one that came with the phone) and noticed the green wire was broken off, so we soldered it back on and my phone was able to connect to my computer finally. Although it wasn't a strong connection and kept disconnecting.
For now I'm using a different cable from my hp touchpad and it's working perfectly fine so everything is all good now
Sent from my SCH-I535 using Tapatalk 2
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That's good to hear! I guess both of our cables just went bad from use or something. Wish I would have tried another cable sooner instead of spending 4 hours installing and uninstalling drivers and wiping and installing ROMs over and over trying to solve the issue! :silly: But good thing we both figured it out! :victory:

I'm having the same problem as well...have now tried 4 different cables, hard reset, and every USB port on my machine and my buddy's computer to no avail. I verified the cables were 'good' on my buddy's gf's gs3 and it worked fine...just wont see mine. Charges just fine just no go on getting any data pass through it seems???