Database Users

Rooted Vibrant - won't detect USB?

Just rooted using this method:
http://forum.xda-developers.com/showthread.php?t=723479
When I hook up the USB cable, it no longer shows up on the phone and gives me the option to mount memory card.
How do I go about fixing that?
(and also, should I need to, how do I unroot?)
EDIT - Now works after reapplying USB settings, weird.

Re Root the phone with one click. If you cannot mount to the computer etc. then odin back to stock and then reroot, You are not the first person to use this rooting and have this happen. Not sure why may be just a batch of phones this method doesn't work with.......

I had the same problem and solved it by allowing USB Debugging mode. When you use ROM Manager and CWR, it actually tells you to leave the phone in the USB Debug mode, maybe the connections issue is the reason?

Rooted Evo will not connect to PC

I rooted my Evo with unrevoked3 a few months ago and since then (or sometime after) my phone will not connect to my PC. It will charge but that's it. I checked off the ask me every time I connect option, it's set to mount as disk drive. I am using the stock usb cable that came with the phone. I tried hard resetting, data wiping back to factory default. Still won't connect. Tried reinstalling HTC Sync. Doesn't recognize my phone being plugged in. I want to flash my phone back to stock so I can bring it back to Sprint but I can't bring it back rooted and I can't unroot it without using the PC. I have Googled and Googled all over but can't find an answer. I did a search here and there are similar problems but no solutions that have worked for me. Could it be the cable? It is in good condition as is the phone. Maybe the USB port on the phone? Those went bad on all my Blackberries. I'm sure this problem is expressed frequently but a response would make my day.

roblacroix said:
I rooted my Evo with unrevoked3 a few months ago and since then (or sometime after) my phone will not connect to my PC. It will charge but that's it. I checked off the ask me every time I connect option, it's set to mount as disk drive. I am using the stock usb cable that came with the phone. I tried hard resetting, data wiping back to factory default. Still won't connect. Tried reinstalling HTC Sync. Doesn't recognize my phone being plugged in. I want to flash my phone back to stock so I can bring it back to Sprint but I can't bring it back rooted and I can't unroot it without using the PC. I have Googled and Googled all over but can't find an answer. I did a search here and there are similar problems but no solutions that have worked for me. Could it be the cable? It is in good condition as is the phone. Maybe the USB port on the phone? Those went bad on all my Blackberries. I'm sure this problem is expressed frequently but a response would make my day.
Click to expand...
Click to collapse
I am assuming you have a windows based PC.
Do you have any device driver conflicts in your windows Device Manager? I'd start there. Your computer wouldn't properly reconize your phone if you have some sort of conflict or you don't even have the right drivers installed.

Broken usb is a known issue with EVO, something about how it is soldered onto the motherboard. Are you running a custom ROM or kernel?
Have you tried mounting it in Recovery? You can always use a MicroSD card adapter to transfer files. I just use Dropbox.
You can unroot without your PC. Just download everything on your phone.
Download the S-On tool from Unrevoked. Flash it in Recovery. Check to make sure phone is S-On
Download the PC36IMG.zip restore to your phone, there is a thread with it in Development. Use Astro/Root Explorer to move the PC36ING.zip to the base of your SD card.
Go into HBoot and it will recognize it. It'll ask if you want to update, say yes. Let it sit and do its thing.
There is a guide in q&a about unrooting
Sent from my PC36100 using XDA Premium App

Yes, Windows based PC.
So I downloaded the S-On tool, moved it to the root of my card with Super Manager, then flashed it. Says S-On at boot. I rebooted my phone, moved the PC136zip to the root of the sd card. Rebooted with down vol + power and it checks for pc136zip but doesn't ask anything. I tried zipping it in recovery and it says bad. I tried another download site and did the same thing, doesn't recognize it upon hboot, so I tried zipping from sdcard, selected it, it quickly said some text about updating then nothingness. How do I know if it unrooted?
Edit: Also, I checked my device manager on my pc but it didn't show anything wrong.

Install terminal and type su
You will get permission denied if not rooted.
I have a working PC36IMG.zip in my Dropbox, if you need it tell me and I'll PM you a link

if u think ur phone is broke cuz u cant connect to pc after u rooted it, it isnt broke at all. my phone did the same thing after i rooted it. I don't remember exactly cuz it was a while ago, but u may have to turn on usb debugging in settings before it will recognize it. also u can go into recovery and mount usb to write to it

It might have to do with the drivers you have to install when you run unrevoked. It has been a while, but I am pretty sure I had to install a special USB driver to run unrevoked.
Sent from my PC36100 using XDA Premium App

I had this happen to my phone last week after I used my computer to root two other peoples phones.
It makes no sense really, but while in recovery I connected to the computer to move a few files to the phone, and after that it was able to connect whether in recovery or not.
See if your phone can make the connection while in recovery.

Ok, so I brought the phone to Sprint after trying a different USB cord and they said the port is damaged. My new phone arrived today but I need to get my phone back to stock ASAP. I got it back to S-On but when I attempt the pc36img flash it says...
SD Checking....
Loading... [PC36DIAG.zip]
No image!
Loading... [PC36DIAG.nbh]
No image or wrong image!
Loading... [PC36IMG.zip]
Then the black bar loads.
Then it says.
Main Version is older!
Update Fail!
Do you want to reboot device?
I hit yes.
I still have SuperUser Permissions.
I've downloaded a few different pc36img.zip from different pages and this happens every time.
Edit: Probably wondering how I did this without a USB. I bought an SD Card reader and transferred everything through PC.

Try this.
1. Plug your usb cable into the computer.
2. Plug your usb cable into the phone.
3. Wait and listen for the little sound that tells you that the computer sees it.
4. Unplug your USB cable from the phone and wait about 2 seconds.
5. Plug the USB cable back into the phone, listen for the sound, then look at the computer monitor.
On mine, I have to do this to make the autorun window pop up running Windows Vista.
Shot in the dark, but thought it might help.

Noise doesn't happen. USB port is damaged, noise will never happen.
On the upside,
(I don't have 8 posts yet or I would show the download image) Updated version of PC36IMG.ZIP that worked. Just rename to pc36img and it unrooted my phone.

I'm having this same problem. Now, In this case, I hear the noise. Then a second double noise (like when you unplug the usb) This happens whether I am in recovery or not. Also, oddly enough, the thing works on my mac. It's done this through several different ROMS Right now I'm using synergy (which is great btw). I'm really at a loss here. Anyone got any other ideas? Like where I can find it in device manager. There are like 9 "root usb" devices
*edit* Also, I'm using window's XP proffessional. I've tried some trouble shooting but nothing is really working. Also it's being assigned a disk letter when connected, during the short time (like less than a second) when the disk pops up it says removable disk. I timed it and it's being assigned H, but it's being ejected almost immediately.

I think it has something to do with power being supplied in the cord. Maybe something to do with kernal? I dunno. But I plugged it into a usb port in the back of my pc, and it read it : /

roblacroix said:
I rooted my Evo with unrevoked3 a few months ago and since then (or sometime after) my phone will not connect to my PC. It will charge but that's it. I checked off the ask me every time I connect option, it's set to mount as disk drive. I am using the stock usb cable that came with the phone. I tried hard resetting, data wiping back to factory default. Still won't connect. Tried reinstalling HTC Sync. Doesn't recognize my phone being plugged in. I want to flash my phone back to stock so I can bring it back to Sprint but I can't bring it back rooted and I can't unroot it without using the PC. I have Googled and Googled all over but can't find an answer. I did a search here and there are similar problems but no solutions that have worked for me. Could it be the cable? It is in good condition as is the phone. Maybe the USB port on the phone? Those went bad on all my Blackberries. I'm sure this problem is expressed frequently but a response would make my day.
Click to expand...
Click to collapse
Alohaz I've had this happen 5 different times and it turned out to be the custom hboot needed for unrevoked after reverting back to original no could recognize phn

unrevoked mess up my 3 evo.
all diag port gone away.
i cant program anymore with qpst,cdma ws etc.
how to fix??

Win Error 43.. frustrated.

I've read through so many threads on so many forums trying to fix this, and I'm about to throw this thing through the wall.
I'm running CyanogenMod 7 nightly on 2.3.7
When I connect the phone to any PC (I've tried Win7 64/32 bit, XP SP3, XP SP2) I get a charging icon in my notification bar, but the USB Storage mode never opens to enable/disable. After about 10 seconds I see "USB Device Not Recognized." Happens the same on every PC. I can still access my internal storage via FTP, just not via USB. The device shows in my device manager as "Unknown USB Device."
Not sure if it's related, but when I boot into FastBoot it runs USB Control/USB Control init and then just freezes. Even after downloading a ROM update with ROM Manager it says "NO ROM FOUND"
This is what I've tried:
USBDeview to uninstall all Android-related drivers, reinstalled Samsung and Google SDK rev 4 drivers.
USB data wipe (for the hell of it, really.)
Multiple PC's with different OS and 3 different USB data cables, including the original.
At this point I'd like to try a factory reset. When I try to unroot with SuperOneClick the program just crashes. When I try a reset from the phone it fails to boot into recovery, and using the Factory data reset produces a "null" error.
I know just enough to be dangerous. If I'm missing something please let me know, and I appreciate any help.
--------------------------------------------------------------
Tried loading a CM9 rom from the SD card that I FTP'd over via ClockworkMod Recovery. It asks for data+cache wipe, then just boots into recovery. I get "NO IMG FOUND" and USB CONTROL INIT and USB CONTROL INIT END.

Try installing pdanet on your computer. Its what I did in order for my computer to recognize my phone. Hope it helps.

Should have mentioned earlier that I also installed PDANet after I wiped my drivers. It couldn't detect the phone being connected and did not completely install.

N4 not showing up at all on PC

I'm not sure when this problem first appeared. For whatever reason, my phone doesn't show up at all when connected to either of my two PCs. It must have when I first rooted the phone (to load ChainSU) but I'm not sure if the problem is recent or occurred immediately thereafter.
USB debugging is disabled. When I plug my phone into a computer, it attempts to install the MTP Driver and fails. When I uninstall my device, it disappears and I'm unable to manually install the driver's I've downloaded from other threads. When I load into the Bootloader, my device is recognized by Fastboot.
I'm hesitant to factory reset as this will leave me unable to root if the problem persists, which is important to me as I can get rid of the yellow tint on this screen.
Any thoughts?
Edit: $10 via Paypal for anyone who successfully helps me to a solution!

Are you definitely sure usb debugging is disabled? The phone should install as a portable device on your pc. Also ensure to enter your password onto your phone when connected otherwise the phone will not show up its contents.

Make sure for windows media player to be updated to the latest, for the windows mtp driver.

duraeas said:
I'm not sure when this problem first appeared. For whatever reason, my phone doesn't show up at all when connected to either of my two PCs. It must have when I first rooted the phone (to load ChainSU) but I'm not sure if the problem is recent or occurred immediately thereafter.
USB debugging is disabled. When I plug my phone into a computer, it attempts to install the MTP Driver and fails. When I uninstall my device, it disappears and I'm unable to manually install the driver's I've downloaded from other threads. When I load into the Bootloader, my device is recognized by Fastboot.
I'm hesitant to factory reset as this will leave me unable to root if the problem persists, which is important to me as I can get rid of the yellow tint on this screen.
Any thoughts?
Edit: $10 via Paypal for anyone who successfully helps me to a solution!
Click to expand...
Click to collapse
There are a few things you can try. Have you tried uninstalling the drivers completely then reinstalling from the toolkit? In the past, I've had issues where the phone wouldn't be accessible in some way on one computer but would be fine on another, so maybe try a different computer to try to narrow down the problem as to whether it's an issue with the phone or the computer? Also, this may sound a bit ridiculous, but simply switching USB cables and / or ports has fixed detection issues for me in the past as well--something to consider.
Sent via Morse code from my Nexus 4

Remove any existing drivers (while phone is connected), do the same for other android devices if you have any, then reboot and install Universal Naked Drivers. Have always had success with this driver pack.

Rizy7 said:
Are you definitely sure usb debugging is disabled? The phone should install as a portable device on your pc. Also ensure to enter your password onto your phone when connected otherwise the phone will not show up its contents.
Click to expand...
Click to collapse
100% sure on both counts.

I have this same issue with my rooted nexus 4, I've tried 3 different computers and several cables and it never connects to the PC and only charges the phone. It doesn't even give me option to choose media files.

I've had this issue before, my Nexus/Computer was acting in complete stupidity. When connecting the phone to your computer you will see a notification saying "Connected as a media device" on your phone, just touch it, and change it to "Camera (PTP)". It might access the camera for you, but It actually accessed the storage for me.

YeledKaki said:
I've had this issue before, my Nexus/Computer was acting in complete stupidity. When connecting the phone to your computer you will see a notification saying "Connected as a media device" on your phone, just touch it, and change it to "Camera (PTP)". It might access the camera for you, but It actually accessed the storage for me.
Click to expand...
Click to collapse
Thats not the problem, it doesn't give any option. It doesn't show up on the computer at all and only charges. It's the same for every computer.

yuriorkis said:
I have this same issue with my rooted nexus 4, I've tried 3 different computers and several cables and it never connects to the PC and only charges the phone. It doesn't even give me option to choose media files.
Click to expand...
Click to collapse
I'm thinking we've screwed something up with the phone's side of the MTP protocol - mine is totally independent of the cord/computer used. All the correct drivers installed.
Have you tried Factory Resetting? I'm really hoping this is a workable option.

If you have a recovery back up the current Rom and flash stock and see if it's working
Sent from my KFTT using xda premium

if the phone is locked with a pin/password/pattern unlock it.

I had same problem on my pc yesterday. Even if the drivers installer showed up that installation was successful, somehow for a mtp mode system was using some other Microsoft driver. Correct one was only used in ptp mode. So when I connected n4 in mtp mode storage wasn't available, when I switched to ptp mode everything was fine. Turn on your usb debug, switch on mtp and connect. Go to device manager in system, find your nexus there and rmb on it and manually reinstall driver. After this my n4 is visible in system in mtp mode again.
Sent from my Nexus 7 using Tapatalk HD

my screen is cracked and phone is useless now (replacement coming tomorrow) can i connect it and wipe it back to factory before i have to send it out?

K0v4L said:
I had same problem on my pc yesterday. Even if the drivers installer showed up that installation was successful, somehow for a mtp mode system was using some other Microsoft driver. Correct one was only used in ptp mode. So when I connected n4 in mtp mode storage wasn't available, when I switched to ptp mode everything was fine. Turn on your usb debug, switch on mtp and connect. Go to device manager in system, find your nexus there and rmb on it and manually reinstall driver. After this my n4 is visible in system in mtp mode again.
Sent from my Nexus 7 using Tapatalk HD
Click to expand...
Click to collapse
The problem is that even if I switch between MTP and PTP it still does nothing, I have tried multiple cables, computers and have reflashed the ROM and wiped the device but it still does not connect with the PC. This is frustrating.

yuriorkis said:
The problem is that even if I switch between MTP and PTP it still does nothing, I have tried multiple cables, computers and have reflashed the ROM and wiped the device but it still does not connect with the PC. This is frustrating.
Click to expand...
Click to collapse
Is yours able to connect during Bootloader/Recovery? Fastboot/ADB have no trouble recognizing my device.
It's really odd that if these things work, meaning your USB connection is fine, replacing the all of software fixed nothing... unless MTP occurs at a much lower level of the OS (maybe kernel is corrupted?)

I've got a similar problem that others have posted - PCs not detecting my N4. I got it last Friday (2/1) from Google and after the registering process and updating to 4.2.1, I connected it to my Win7 laptop and it showed on the PC as a drive. But since I couldn't copy/paste Office docs to that drive and had to do that through Dropbox, I didn't bother trying to reconnect until Monday, at which time the PC didn't detect it. Neither will one other Win7 nor two XP (both with WMP10) PCs. Have tried multiple cables, all of which work with other Android devices (pre 3.0). I've seen several suggestions on this and other threads, but one major issue I'm having is that some of the fixes require enabling USB Debugging. For the life of me I can't find that option in the N4's Settings. Unlike my other phones, there is no Applications subcategory under Settings on my N4 (4.2.1, Build JOP40D). Can anyone help me find that option? TIA.
Edit - Found answer. Click on Build in About Phone setting 7 times. That activated Developer options. Now to try the fixes which require USB Debugging mode turned on.

USB doesn't work after OTA

Hey all,
I have tried to google and figure this out but my phone doesn't show up in device manager in windows or in android file transfer on mac EXCEPT when in download mode or when the phone is off/charging via my computers USB port.
So when in download mode, the phone shows up in device manager....
When my device is off and charging via USB port, it shows up in device manager...
I have tried USB debugging mode no change...
Charges just fine. No usb port issues because it connects during download mode etc...
During these times, i obviously can't access the SDcard.... but as soon as the device boots, it disconnects and disappears from device manager even though its still charging etc...
This only happened after the last OTA update.
I assume i will have to restore to defaults as its probably an issue with the kernel and usb protocol but I dont have the phone rooted and i don't want to root it at this time... I am hoping there might be a quick fix and/or setting i am missing.
Thanks!

tronicsmasta said:
Hey all,
I have tried to google and figure this out but my phone doesn't show up in device manager in windows or in android file transfer on mac EXCEPT when in download mode or when the phone is off/charging via my computers USB port.
So when in download mode, the phone shows up in device manager....
When my device is off and charging via USB port, it shows up in device manager...
I have tried USB debugging mode no change...
Charges just fine. No usb port issues because it connects during download mode etc...
During these times, i obviously can't access the SDcard.... but as soon as the device boots, it disconnects and disappears from device manager even though its still charging etc...
This only happened after the last OTA update.
I assume i will have to restore to defaults as its probably an issue with the kernel and usb protocol but I dont have the phone rooted and i don't want to root it at this time... I am hoping there might be a quick fix and/or setting i am missing.
Thanks!
Click to expand...
Click to collapse
You do have to have USB debugging mode checked. If you don't have the developer option enabled in settings, go to about phone, find your build number and tap on it rapidly until it says your developer option is enabled. Back out and you should see a developer tab. Click it and make sure USB debugging is checked. If that doesn't work you might reinstall the latest USB drivers.

i did both of those. the odd part is when in download mode windows chimes that my device it attached.. no problems right? but anytime the android OS is running no chimes at all no recognition at all on any computer... its almost like back in my linux days when the kernal had a usb module failed to load... i swear its as if the kernal turned off usb data communication... power is fine... just wont communicate unless in download mode or in a power off state.... totally weird...

When you plug it into the computer, pull down your notification drawer, make sure USB setting is set to MTP. It usually is set to installer, or charge only by default.
Also I'd say completely wipe out your phone drivers on the computer, and reinstall all new ones.
Possibly reinstall ADB as well.
Sent from my SM-G900V using XDA Free mobile app