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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?
Yesterday I made a custom usb Y cable and connected it to a USB OTG adapter to our phone and supplied a external +5v power then connected USB keyboard and mouse both worked.
But when i tried connecting my pen drive it did not shown any sign of life.
I searched and narrowed these methods:
http://www.chinadigitalcomm.com/how-to-mount-usb-flash-drives-t1865.html
http://forum.xda-developers.com/showthread.php?t=1334444
http://forum.xda-developers.com/showthread.php?t=997187
According to these two methods I should get sda1 and sda 2 in dev/block after connecting a USB pen drive but that is not happening.
Then I searched and found out that our kernel should have UMS enabled to mount any usb storage device as stated here:
http://forum.xda-developers.com/showpost.php?p=22597744&postcount=3
I am really confused now, I know I have enabled USB Host mode as usb mouse and keyboard are working but dont know how to modify our kernel to get usb pen drive work.
prasannapmv said:
Yesterday I made a custom usb Y cable and connected it to a USB OTG adapter to our phone and supplied a external +5v power then connected USB keyboard and mouse both worked.
But when i tried connecting my pen drive it did not shown any sign of life.
I searched and narrowed these methods:
http://www.chinadigitalcomm.com/how-to-mount-usb-flash-drives-t1865.html
http://forum.xda-developers.com/showthread.php?t=1334444
http://forum.xda-developers.com/showthread.php?t=997187
According to these two methods I should get sda1 and sda 2 in dev/block after connecting a USB pen drive but that is not happening.
Then I searched and found out that our kernel should have UMS enabled to mount any usb storage device as stated here:
http://forum.xda-developers.com/showpost.php?p=22597744&postcount=3
I am really confused now, I know I have enabled USB Host mode as usb mouse and keyboard are working but dont know how to modify our kernel to get usb pen drive work.
Click to expand...
Click to collapse
you won't be able to modify our kernel with our locked bootloader, but your problem could be elsewhere. the drive requires more power than a mouse or keyboard, so it just may not be getting enough. will your power supply give a full 500mA that is what a normal usb port gives, and is probably overkill for a flash drive, but it would prove whether that is the problem or not.
Does the drive have a light on it that usually turns on when you plug it in? if so, does it come on when you plug it in with your splitter into the phone.
It may be that it is just not supported on our phone, but I think a power problem is much more likely.
EDIT: once you think it is getting power, check for it in /dev/block by running this in terminal emulator. you can check before and after to see what changes, if anything in case it is not named /sdxx
Code:
ls /dev/block
lkrasner said:
you won't be able to modify our kernel with our locked bootloader, but your problem could be elsewhere. the drive requires more power than a mouse or keyboard, so it just may not be getting enough. will your power supply give a full 500mA that is what a normal usb port gives, and is probably overkill for a flash drive, but it would prove whether that is the problem or not.
Does the drive have a light on it that usually turns on when you plug it in? if so, does it come on when you plug it in with your splitter into the phone.
It may be that it is just not supported on our phone, but I think a power problem is much more likely.
EDIT: once you think it is getting power, check for it in /dev/block by running this in terminal emulator. you can check before and after to see what changes, if anything in case it is not named /sdxx
Code:
ls /dev/block
Click to expand...
Click to collapse
That is right, our phone does not provide power on the usb connection, it is a one way charge only, no matter which cable you use, it is an issue with moto's implementation of the USB protocol.
---EDIT---
I do think that I read that someone was able to get it working by using a powered usb hub attached in between the A2 and the usb device. WARNING some assembly/dis-assembly was required!
jimbridgman said:
That is right, our phone does not provide power on the usb connection, it is a one way charge only, no matter which cable you use, it is an issue with moto's implementation of the USB protocol.
Click to expand...
Click to collapse
devices do work as long as you provide external power, which is what he has done. basically you cut the power wires out of the cable and hook them up to a power supply, thus givng the power and giving the data to the phone. Since it supports host mode, it SHOULD work with a flash drive as well as mice, I have heard of people doing it.
lkrasner said:
devices do work as long as you provide external power, which is what he has done. basically you cut the power wires out of the cable and hook them up to a power supply, thus givng the power and giving the data to the phone. Since it supports host mode, it SHOULD work with a flash drive as well as mice, I have heard of people doing it.
Click to expand...
Click to collapse
I know this does not explain it, but it is mentioned that a powered hub is needed.... This person was thinking of making basically a DIY HD doc, and there was someone else on here that has done it too, but I can't find that post and I can't remember the users name.
http://forum.xda-developers.com/showthread.php?t=1462541
A cheap hub will do the job much better, and I have heard of other users having trouble with the otg cable and usb storage.
Just more information to think about and look into.
Try this
https://play.google.com/store/apps/details?id=eu.chainfire.stickmount&hl=en
Motorola lied and I'm still locked mb865
I've tried every single thing that I can to make Usb flash drive work but its something in our software that is restricting it detect any of my storage devices.
I saw one more thread yesterday it was for XOOM which says kernel has to be modified in order to get usb Drives work:
http://forum.xda-developers.com/showthread.php?t=1068999
I now understand that with locked bootloader it will not be possible to modify the kernel so i am abandoning this project and hope we find a way to unlock bootloader soon in the future.
You can try by using a self powered hub which provide power to devices, If it works do post the results as I am also looking forward to use USB HOST feature
john1989 said:
You can try by using a self powered hub which provide power to devices, If it works do post the results as I am also looking forward to use USB HOST feature
Click to expand...
Click to collapse
Ive done this. I have a powerd usb hub, otg cable hooked up and it does not recognize drives or mice. None of it is working. Beginning to think there is not a way to make this work.
It does work when you connect pen drive to lapdock so its not software/firmware/kernel issue.
Easy solution: buy a lapdock or a media dock with usb ports and connect your drive there.
Sent from my MB865 using Tapatalk 2
I did finally get this to work.
One caveat, you have to connect the power directly from the cable to the otg cable. Basically power the hub and the otg cable from one line even though they are connected. This is what did the trick for me.
Ill post pictures when i can if its still foggy.
Sent from my MB865 using xda premium
Rebelj12a said:
I did finally get this to work.
One caveat, you have to connect the power directly from the cable to the otg cable. Basically power the hub and the otg cable from one line even though they are connected. This is what did the trick for me.
Ill post pictures when i can if its still foggy.
Sent from my MB865 using xda premium
Click to expand...
Click to collapse
Update and edit. No automounting at all. Have to use an external program to mount. Been trying to debug this for a while but the OS is not seeing the usb device.
Using USB host diagnostics Android api does not detect the device. Although the claims and classes were found. Kernel is in the green here too. Unfortunitely this makes it so that the USB device cannot be used by 3rd party programs. Still working on figuring this out. I saw a post about shorting out the 4 and 5 line of the microusb cable. Going to try that see where it goes.
1. phone working 100%. USB and all.
2. previously had USB debugging on, plugged into PC & needed ADB drivers so installed the Motorola ones.
3. Windows then tells me unrecognized device, swapped cable, tried different PC, no go. all the same.
4. Whilst in fastboot, same issue.
Things were fine prior to this, which is why I'm finding it odd. I did have USB debugging on & the device plugged in when I installed the drivers but I'm not sure if this was the cause or not. Any help?
Would the usb connector on the phone happen to be stuffed?
Do you have any Linux machines around?
It sounds like typical Windows driver issues, unfortunately.
Sent from my SPH-D700 using xda app-developers app
Windows can't identify the device to even install a driver, this is why I'm finding it a little bizarre. I do have Linux live cds I guess ill give that a try
Rzeractor said:
Windows can't identify the device to even install a driver, this is why I'm finding it a little bizarre. I do have Linux live cds I guess ill give that a try
Click to expand...
Click to collapse
Would be interesting at least to see what lsusb says.
My device kinda works still, although the screen is broken... Should say something like 22b8:0228 for your Motorola.
Edit - and I guess what I meant to say, is if Windows installs the wrong drivers it may be getting something hosed up.
Nope, no go. Lsusb doesn't even seem to recognise it.
However, when I did factory reset the phone, and plugged it into a mac, the phone responded by telling me that it was in 'charge only' mode; and that usb debugging was enabled [which I did]. Which techincally meant it was working!
but, as soon as I tried to plug it into a PC, same unknown device issue. Back into the Mac, and didn't even register. I'm stumped
Very bizarre.
Any other ideas?
What do you mean lsusb doesn't recognize it...? What's the output?
Sent from my SPH-D700 using xda app-developers app
arrrghhh said:
What do you mean lsusb doesn't recognize it...? What's the output?
Sent from my SPH-D700 using xda app-developers app
Click to expand...
Click to collapse
The output doesn't even list the device connected. I tested this with random flash drives and such, libusb sees them, but when the phone itself is plugged into the machine, it lists the same items [I assume the usb bus] as when it isn't plugged in.
As I said, very bizarre. This seemed to have happened when I had the phone connected to the PC whilst installing the motorola drivers. Weird. & that the phone only charges via a mains plug now, and not thru usb directly.
You said you tried a different cable & PC... did you?
It does sound like USB is broken, water damage perhaps? Seems popular nowadays
(kidding, my Q was water damaged...)
If USB doesn't work in fastboot mode, on multiple USB cables (I'm assuming you have the OEM cable and have tried it first), multiple USB ports, and multiple computers... It does sound like the port is somehow fried. Never heard of such a thing, to be honest. Even my water damaged Q eventually started working on USB again and I was able to RSD it back to stock.
Hello everyone,
A couple of weeks ago my USB data connection on my OnePlus One has stopped working.
This means that no connection is even detected on any computer.
This is not a driver issue as the computer doesn't even notice anything has plugged in.
I think it's not a software/ROM issue because the same applies to fastboot mode and recovery mode - no data connection, no "usb plugged in" sound on any computer, no device showing up.
It's also not a cable issue, as the same cable works on other OnePlus One's and I've tried many different known-to-be-working cables.
More facts:
1) When plugging to a computer USB port - the battery icon shows the charging (lightning) symbol for a half a second and disappears and it won't charge. The computer, of course, doesn't see a usb device plugged.
2) When connecting to an AC charger - it charges just fine.
3) I already tried replacing the dock connector and flat cable unit with a new one - did not solve the issue, which means the dock connector is fine.
Any insight on this will be greatly appreciated!
Thanks!
purpleman2k said:
Hello everyone,
A couple of weeks ago my USB data connection on my OnePlus One has stopped working.
This means that no connection is even detected on any computer.
This is not a driver issue as the computer doesn't even notice anything has plugged in.
I think it's not a software/ROM issue because the same applies to fastboot mode and recovery mode - no data connection, no "usb plugged in" sound on any computer, no device showing up.
It's also not a cable issue, as the same cable works on other OnePlus One's and I've tried many different known-to-be-working cables.
More facts:
1) When plugging to a computer USB port - the battery icon shows the charging (lightning) symbol for a half a second and disappears and it won't charge. The computer, of course, doesn't see a usb device plugged.
2) When connecting to an AC charger - it charges just fine.
3) I already tried replacing the dock connector and flat cable unit with a new one - did not solve the issue, which means the dock connector is fine.
Any insight on this will be greatly appreciated!
Thanks!
Click to expand...
Click to collapse
By dock connector, you mean the USB port? Typically, this issue arises when the pins in the USB port get damaged. I don't know how the rest works out, but if that particular section of pins have to communicate throughout the rest of the motherboard, perhaps the trail responsible for that may have somehow gotten damaged. This is a clueless theory, someone with more electrical/motherboard experience can verify this.
What I do know is that once the micro USB port has been replaced on the phone, the issue should be fixed. It happened to an S3 I still have and I got it replaced by a friend. Sadly, it happened to me at the wrong time since i had wiped the entire OS and internal storage and was relying on my USB OTG cable and a flash drive which contained a rare rom called Sonic Open Kang Project (SOKP).
DO NOTE that this has also been an issue with me on the software side of certain devices. I uave had practically every flagship device out there and have come across a point where this happens on both stock and custom roms. My Optimus G did it on custom roms, and my Nexus 7 2012 occasionally on stock. There were other devices I cannot remember but sometimes factory resets or replacing the rom helps. However, you did state that the result is still the same on fastboot/recovery, so this seems to be more on the hardware side.
I replaced the USB connector (including it's flex cable) entirely. Did not solve the issue.
What else could be wrong?
try again
purpleman2k said:
I replaced the USB connector (including it's flex cable) entirely. Did not solve the issue.
What else could be wrong?
Click to expand...
Click to collapse
Try another computer. See if you can get any response from adb.
pbergonzi said:
Try another computer. See if you can get any response from adb.
Click to expand...
Click to collapse
I tried a lot of different computers and cables. None of them detect a USB connection.
Again, to clarify - they don't even SEE a usb device has been plugged in.
recovery?
purpleman2k said:
I tried a lot of different computers and cables. None of them detect a USB connection.
Again, to clarify - they don't even SEE a usb device has been plugged in.
Click to expand...
Click to collapse
You running a custom recovery? If so, see if you can toggle the mtp on/off reboot with each back to recovery. Use the tools to check the filesystem, permissions, etc.
Could pins have damaged?
Well, I did replace the USB connector with a new one, so if pins are damaged it's gotta be on the motherboard side, and I can think of no reason why that would ever happen.
As for recovery, I'm running TWRP and I'm not sure I understand what you meant I should try. Can you elaborate?
Thanks
I recently bought a Google Pixel it's all working fine
But when I plug it on my PC it doesn't get recognized even though the phone is charging I don't get any notification that the phone is plugged through USB I have all the drivers installed
Here are the errors I'm getting: "Unknown USB Device (Device Descriptor Request Failed)" and "Windows has stopped this device because it has reported problems. (Code 43)" please help I've moved from iOS recently I don't want to refund I freaking love this phone! and i'm starting to get desperate.
Thanks
Not for the Pixel 2 but I thought it'd be the same case plus I need help ASAP cause I'm leaving country soon!
Are you connecting it using the cable that it came with? If you are, try a different port or reboot your phone and see if that helps. You can also get into the developer settings and tell it to MTP rather than USB Charging. Sometimes that helps. You can also try different cables, (if desktop) use the usb ports on the back of the computer rather than the front.
nolimit78 said:
Are you connecting it using the cable that it came with? If you are, try a different port or reboot your phone and see if that helps. You can also get into the developer settings and tell it to MTP rather than USB Charging. Sometimes that helps. You can also try different cables, (if desktop) use the usb ports on the back of the computer rather than the front.
Click to expand...
Click to collapse
Yeah I did it all. It just doesn't wanna work
The cable it comes with is garbage. Use that only for charging and go buy a good USB C or USB A to C cable (for transfer, adb, etc. I've had better luck with the A to C cables).
clcdev said:
The cable it comes with is garbage. Use that only for charging and go buy a good USB C or USB A to C cable (for transfer, adb, etc. I've had better luck with the A to C cables).
Click to expand...
Click to collapse
I am using an original S8 one, tried with my friend's Google pixel original one and tried with a Chinese crap all three of em same ting
Make sure you are plugging into a USB 2.0 port. If all you have are 3.X ports you need to enable USB debugging in Developer options. If you are plugging into a desktop use the ports on the back of the machine.
Sent from my Pixel 2 using Tapatalk
PiousInquisitor said:
Make sure you are plugging into a USB 2.0 port. If all you have are 3.X ports you need to enable USB debugging in Developer options. If you are plugging into a desktop use the ports on the back of the machine.
Sent from my Pixel 2 using Tapatalk
Click to expand...
Click to collapse
Didn't work too. I never had this issue before when I had an iPhone
fr3akfr0m said:
Didn't work too. I never had this issue before when I had an iPhone
Click to expand...
Click to collapse
Perhaps you should have stuck with iOS then?
Sent from my Pixel 2 using Tapatalk
PiousInquisitor said:
Perhaps you should have stuck with iOS then?
Sent from my Pixel 2 using Tapatalk
Click to expand...
Click to collapse
It's too late for that now mate
I don't bother connecting with a cable. I use the free app 'Airdroid'. It gives you a url to use on your computer and as long as both your phone and computer are on the same network you can see all your files, photos, messages etc. on your computer screen. Very easy to move files either way and do all sorts of other things. Very slick.
BTW, you don't need to setup an Airdroid account just skip that bit.
scgf said:
I don't bother connecting with a cable. I use the free app 'Airdroid'. It gives you a url to use on your computer and as long as both your phone and computer are on the same network you can see all your files, photos, messages etc. on your computer screen. Very easy to move files either way and do all sorts of other things. Very slick.
BTW, you don't need to setup an Airdroid account just skip that bit.
Click to expand...
Click to collapse
Nah I'm doing this so I can root n stuff
You don't need pc to recognize device as a drive via USB for file recognition to root and stuff. Just use adb push and pull. That's of course if it is recognized by adb. Mine is that way as not recognize mtp drivers but adb is fine
Sent from my Pixel 2 using my fingers on the keyboard.
I had the same issue when I first got my phone. Initially, the only way I was able to get it to work was plugging directly into a USB port on the PC....it wouldn't work on any USB hub. I ordered a Anker Powerline II cable (my hub was Anker so I figured it would have the best luck) and it worked. No other cable would work...not sure why. Also, I didn't have to enable debugging (I had tried that before and it still didn't work)...I was able to go into Settings and change USB from charge only to file transfer.
mikeynavy1 said:
I had the same issue when I first got my phone. Initially, the only way I was able to get it to work was plugging directly into a USB port on the PC....it wouldn't work on any USB hub. I ordered a Anker Powerline II cable (my hub was Anker so I figured it would have the best luck) and it worked. No other cable would work...not sure why. Also, I didn't have to enable debugging (I had tried that before and it still didn't work)...I was able to go into Settings and change USB from charge only to file transfer.
Click to expand...
Click to collapse
I'm plugging it into a port not a hub and it still doesn't wanna work
fr3akfr0m said:
I recently bought a Google Pixel it's all working fine
But when I plug it on my PC it doesn't get recognized even though the phone is charging I don't get any notification that the phone is plugged through USB I have all the drivers installed
Here are the errors I'm getting: "Unknown USB Device (Device Descriptor Request Failed)" and "Windows has stopped this device because it has reported problems. (Code 43)" please help I've moved from iOS recently I don't want to refund I freaking love this phone! and i'm starting to get desperate.
Thanks
Not for the Pixel 2 but I thought it'd be the same case plus I need help ASAP cause I'm leaving country soon!
Click to expand...
Click to collapse
I've had the same issue - it ended up being a bad cable.
I know you probably checked this, but... did you update the Google drivers on your PC? My phone wan't recognized until I installed the latest from Google.
Just use an a to c cable. If you're using the adapter that came with your pixel, it won't work. And yeah everyone else is right, use the 2.0 port
Apparently 8.1 fcuked up usb 3.x connections such that you can't even use them for data, only usb 2.0 for now, it's super annoying. There's an issue tracker for it if you want to star it.
I use Solid Explorer and the ftp server to connect to Win 10 for file transfers atm
I had the same problem. After I finally switched to my one USB 2.0 port, I was subsequently able to use my 3.0 ports again. It was a while ago, so I don't remember the details, but I think I updated the driver for the device that was reporting as active in Windows Device Manager while I was connected via the 2.0 port.
Usneato said:
I had the same problem. After I finally switched to my one USB 2.0 port, I was subsequently able to use my 3.0 ports again. It was a while ago, so I don't remember the details, but I think I updated the driver for the device that was reporting as active in Windows Device Manager while I was connected via the 2.0 port.
Click to expand...
Click to collapse
Would be interesting if you could share your driver info - no one I've seen online has fixed this!