Develop Bugs

Problem with usb connection to laptop

I'm having usb errors from my laptop and it is being caused by my evo. I can connect it just fine and use it as a disk drive if needed but my windows 7 (64 bit) keeps saying that the usb device is not recognized. I tried disabling and enabling it. It's definitely the phone. Is there a special driver for android I need to install to my laptop? Any other suggestions if not?

Try deleting all the drivers and installing again. That should do the trick. Make sure you have adb drivers installed.

I downloaded the android sdk and sdk manager. Online it says there should be usb drivers but mine doesn't have the drivers. I installed all the packages and there is nothing for usb drivers. Can you or someone send me those drivers or give me a link to where i can get them for the evo? I keep getting usb errors.

Have you tried installing HTC Sync?

No I haven't. I looked it up and it syncs outlook etc. What will that do? I installed the drivers and adb and the computer still gives usb errors. It says the device connected has malfunctioned when it isn't plugged in. It's driving me nuts.

I'm pretty sure that HTC Sync installs USB drivers to help facilitate the various syncing things it does. At worst it won't make any difference, at best it might solve the problem. Can't really see a reason to not try it.

I tried it. Uninstalled and reinstalled and still getting usb errors. Any other suggestions? When I unplug my laptop sometimes i get the blue screen because of a problem with a bugcode usb driver.

I'm having a similar problem but my phone wont even with Vista on my laptop. I have downloaded HTC sync, and Android SDK, did a combo of USB settings in phone and still no luck. All my phone does it charge..how can i get it to disk?

wings9130 said:
I tried it. Uninstalled and reinstalled and still getting usb errors. Any other suggestions? When I unplug my laptop sometimes i get the blue screen because of a problem with a bugcode usb driver.
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Click to collapse
Doesn't matter what version of Windows you're running, go to device mangler, and uninstall ALL of your USB drivers while online. Re-boot, and it should re-install the correct drivers from the internet. My USB drivers were dated 2006, before I did this! And that was in Windows 7!

Windows won't recognize t989

Hello all!
First: I promise I searched the forums and google as hard as I could!
I'm running AOKP JB with CWM, although the problem was present on stock ICS from T-Mobile.
Symptoms: Computer and phone will refuse to acknowledge any connection (nothing shows up in Device Manager), except the phone will still charge. If I do the "remove the battery with USB plugged in" trick, the first time I do it, it will recognize an unknown device, but kies and adb won't recognize it. If I unplug it and plug it back in, it'll go back to not acknowledging any connection.
I previously programmed it (when I was still running stock ROM) via ADB via WiFi, but I need to be able to use ADB via USB. Besides, I can't seem to get ADB over WiFi anymore.
When I plug it into a different computer (Win7), it will, however, recognize my phone.
Earlier this year, before I ever tried programming via WiFi, it connected to my Win8 machine with no problem. I don't think it's a problem with the wifi setup though because the ROM was reinstalled and of course I've restarted ADB in USB mode in the months since...
What I've tried:
Reinstalling Kies
Reinstalling Samsung USB drivers
[^]Restarting the ADB server
Updating ADB
Trying different USB cables
Trying different USB ports
Toggling USB debugging
Toggling MTP mode
The UART thing from the dialer
Restarting the phone and the computer (of course)
Checking to see if my computer's USB drivers need to be updated
The android terminal command "setprop persist.sys.usb.config mass_storage,adb"
Pulling and replacing the battery while connected via USB
Crying in a corner
If anyone can help me, it'd be greatly appreciated! I'm all out of ideas and Google is no longer helpful =/

try to uninstall the drivers that are present anything samsung related to your drivers ... then connect the phone and let the process do its thing if you have the samsung drivers saved on your PC and the drivers still aint working update the drivers and then manually click where the drivers are to install them and hopefully it will work and when you tried MTP is it the only option it gives you no storage or anything ??... and is usb debugging on when you are trying all this ??

krazierokz said:
try to uninstall the drivers that are present anything samsung related to your drivers ... then connect the phone and let the process do its thing if you have the samsung drivers saved on your PC and the drivers still aint working update the drivers and then manually click where the drivers are to install them and hopefully it will work and when you tried MTP is it the only option it gives you no storage or anything ??... and is usb debugging on when you are trying all this ??
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Click to collapse
I tried on my work computer that didn't have any samsung drivers and when the "unknown device" dialog popped up it didn't do anything or install anything, nor did it show up in Device Manager. Unplugging and replugging it back in did not reproduce the dialog box. Togged USB Debugging and still no dialog box saying it recognized it.
The thing with the samsung drivers is that they're self installing so even if it popped up in Device Manager, I wouldn't be able to manually update the drivers =/
I tried MTP both with and without USB Debugging, although it also gives the option for PTP.
At this point do you think I should unroot and go back to stock? It's not been recognized on three computers now! =[

Are you using the stock cable? My computer wouldn't recognize mine without it.
Sent from my SAMSUNG-SGH-T989 using Tapatalk 2

foltz61 said:
Are you using the stock cable? My computer wouldn't recognize mine without it.
Sent from my SAMSUNG-SGH-T989 using Tapatalk 2
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Click to collapse
Both the stock cable and a generic cable.

Similar problem
Similar problem as the OP. And hi guys, it's nice to be on these forums.
My device, when I plug it in using the stock cable, doesn't even charge. It doesn't show up in device manager, nor does it give me a notification, or say it's unsupported and bear that yellow icon. I have tried using different USB ports, I have tried the toggling USB debugging, I have tried restarting phone, computer, and taking out battery. I have tried that PDA/MODEM dialer trick. I am using 4.1.2 Jellybean, not rooted. (that WAS my goal,, until I hit this roadblock) I have not connected it to the computer in the past, it's relatively new. I'm thinking the cable is bust.
Any suggestions would be appreciated. It charges fine through a wall outlet plug, be it generic or stock.

so guys ive come to a conclusion i think its something in the samsung usb cables try getting yourself a blackberry usb cable , TRUST ME !!! ever since i got my phoness etc... tablet and yadi yadi samsung usb cables have always seemed to give me problems i think its because they are multi data/charging cables and when using the blackberry usb cable i have never ever once encountered a problem with any of my phones sd/storage problems do yourself a favor and pick up one of those cables and you will be golden !! if not then i guess im the only lucky one :LOL here you go http://www.amazon.com/Blackberry-Travel-Adapter-Micro-Cable/dp/B004VMVSYK/ref=pd_sim_cps_2 5 bucks!
Edit also one more test boot into recovery and click in the advanced menu and see if mount usb works for you in recovery mode ??

FIX (try using a generic cable)
I actually solved it on my own! After borrowing a generic cable from a friend it booted up! The Samsung cable was just not doing its thing.

yeah im telling you those cables they provide are JUNK!!! i only use my samsung to charge because they do that well but data they are str8 CRAP!! glad you got it up and going

OP
Hope OP will have the same luck as me...pray to the Android gods...

Lol:thumbup:
Sent from my SAMSUNG-SGH-T989 using xda app-developers app

Cannot connect to pc with windows 8.1

Hey guys i recently got a new pc with windows 8.1 and it doesnt recognize my gnex. whenever i connect it (i tried various combinations of mtp,ptp and usb debugging on and off) it says usb device has malfunctioned. same thing happens in bootloader mode. if i go to device manager i cannot see it under either portable devices or adb interface (the option is not present) i just see a yellow exclamation mark under "usb controllers> unknown usb device(port reset failed)". I have also tried all usb ports both usb 2.0 and 3.0.
anyone have the same problem? the phone works perfectly with the same cable in my other laptop with win7

I solved the issue. It seems that my USB cable was the problem. I changed it and it installed fine. I didn't think of it at first as the same cable works perfectly fine with win 7.
Sent from my Galaxy Nexus using Tapatalk

I always have the problem that I can connect to my phone, but sometimes when I try to open a folder, it keeps loading and won't open the folder. Don't think that's an USB problem too, but I'll try...

USB charges but no data

Hi, my phone stopped being able to get a USB data connection. The port is physically intact and does not wiggle. I've tried two different Macs and one PC, different USB-A to -C cables (all verified by Benson Leung). Also toggled USB debug, MTP and PTP modes from Developer Options, rebooted phone and computer. When I plug the phone in, it only goes to Charging mode. Android File Transfer doesn't see it and 'adb devices' comes back empty. There is no notification offering me to select connection type. Did I miss anything or is it time to send it in? Thanks, Tony

What OS are you running on your Windows - checking your Device Manager under Control Panels - are all the Google / N5X drivers installed and working correctly before this ? Try uninstalling, reboot PC and re-install them - and, use different USB port to connect the cable (what kind of connections are you using ??)
Can you run ADB ?

Thanks I'm primarily using a Mac (10.10.5) but the PC was running Vista. It was a borrowed PC so I didn't install the drivers. I don't think it's a driver issue though since nothing shows up in device manager and the phone doesn't offer to switch out of charge-only mode. Also the same Mac worked previously.

Phone not recognized by computer

Hey so i have been having a big problem recently. my htc one m8 32 gb verizon version doesnt get recognized by my computer. ive tried different computers, ports, and cables. i even got a new charging port and installed it but nothing. when i plug my phone into my pc, nothing pops up. the phone only charges but no option to transfer files. htc sync says no phone connected. Also have usb debugging enabled but nothing. running on 6.0 marshmallow and any help would be nice. Thanks!

If you look at your notifications, there will be one you can't clear saying USB Charging this device. Click on the notification and change it to File Transfer.

Couple comments:
1) Try the genuine HTC cable that came with the phone. I've noticed that some 3rd party cables will only charge, and not connect by USB/MTP. I assume the pin layout on those particular cables is not exactly the same as what HTC uses.
I know you probably already tried this (HTC cable) but this may at least narrow down the variables.
2) Assuming a Windows PC, go to device manager, find the phone (hopefully, its listed) then select the option to manually select a driver. Then pick the generic driver for "Android MTP device" (or something like that, forget the exact name). If often have to do this to get my home PC to "see" my M8 by USB. Although my work laptop doesn't have this issue. Your results will vary depending on your exact PC configuration, it can be very confusing and frustrating!

m8 problem
First sorry for bad English.
My M8 is not recognized by my computer. I've tried extra ports, cables, drivers .. Windows 7 64 bit is computer, android 6 is on the phone. Only the phone detects it is connected to a computer and offers the options, mtp, ptp, charging ...
What can I do?

[email protected] said:
My M8 is not recognized by my computer. I've tried extra ports, cables, drivers .. Windows 7 64 bit is computer, android 6 is on the phone. Only the phone detects it is connected to a computer and offers the options, mtp, ptp, charging ...
What can I do?
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Click to collapse
I don't see what the problem is. The PC recognizes the phone. Are you trying to access a function such as fastboot or adb, that is not working? You never say in your post what the problem is.