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I've googled and searched everywhere for this, but no luck. I got the S4 yesterday (AT&T) and i went through the steps to turn on developer options for the new 4.2.2 jellybean to get access to the USB debugging option. I turn USB debugging on and hook it up to my computer and it will not install the ADB interface driver (needed for PDAnet). The phone connects as if USB debugging is not turned on saying "connected as a media device" and keeps giving me the option on the computer to access storage. Anyone or everyone else having this problem?
urn357 said:
I've googled and searched everywhere for this, but no luck. I got the S4 yesterday (AT&T) and i went through the steps to turn on developer options for the new 4.2.2 jellybean to get access to the USB debugging option. I turn USB debugging on and hook it up to my computer and it will not install the ADB interface driver (needed for PDAnet). The phone connects as if USB debugging is not turned on saying "connected as a media device" and keeps giving me the option on the computer to access storage. Anyone or everyone else having this problem?
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Did you install the drivers? Did you have the phone connected when you enabled it? If so disconnect and reconnect.
urn357 said:
I've googled and searched everywhere for this, but no luck. I got the S4 yesterday (AT&T) and i went through the steps to turn on developer options for the new 4.2.2 jellybean to get access to the USB debugging option. I turn USB debugging on and hook it up to my computer and it will not install the ADB interface driver (needed for PDAnet). The phone connects as if USB debugging is not turned on saying "connected as a media device" and keeps giving me the option on the computer to access storage. Anyone or everyone else having this problem?
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Click to collapse
I did the same thing and it worked for me tho..
Also, you may want to check your phone's screen after you connect it to the computer. I had to "accept" my computer's RSA key before adb could detect the device.
crawrj said:
Did you install the drivers? Did you have the phone connected when you enabled it? If so disconnect and reconnect.
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I've done everything and tried everything I know to. I have restarted the computer, the phone, enabled and disabled usb debugging while it's connected to the pc and no conncected. I've installed the drivers PDAnet says to, but still my phone connects as if usb debugging is not on (says connected as media and pc doesn't recognize and install the adb driver). Is there anything I'm missing?
Dare{D}evil said:
I did the same thing and it worked for me tho..
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Did you do anything different besides just turn on usb debugging?
urn357 said:
I've done everything and tried everything I know to. I have restarted the computer, the phone, enabled and disabled usb debugging while it's connected to the pc and no conncected. I've installed the drivers PDAnet says to, but still my phone connects as if usb debugging is not on (says connected as media and pc doesn't recognize and install the adb driver). Is there anything I'm missing?
Did you do anything different besides just turn on usb debugging?
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Click to collapse
All I did was install install the S4 drivers from Samsung. Enabled USB Debugging. Plugged it into the computer. Waited for the drivers to finish setting up. Disconnected and reconnected again just to make sure drivers were loaded. And launched ADB. Nothing else.
Edit: Oh almost forgot. I got a message on the phone saying something about a computer trying to connect do you allow it. I hit always allow or something. Sorry don't remember exactly was too long ago. That is probably it because if you weren't watching the screen you wouldn't see it.
Edit2: LOL just saw captawsm's post. Yes what he said.
captawsm said:
Also, you may want to check your phone's screen after you connect it to the computer. I had to "accept" my computer's RSA key before adb could detect the device.
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Click to collapse
crawrj said:
All I did was install install the S4 drivers from Samsung. Enabled USB Debugging. Plugged it into the computer. Waited for the drivers to finish setting up. Disconnected and reconnected again just to make sure drivers were loaded. And launched ADB. Nothing else.
Edit: Oh almost forgot. I got a message on the phone saying something about a computer trying to connect do you allow it. I hit always allow or something. Sorry don't remember exactly was too long ago. That is probably it because if you weren't watching the screen you wouldn't see it.
Edit2: LOL just saw captawsm's post. Yes what he said.
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Click to collapse
You guys on AT&T? I never got that message. I know nothing ever popped up like that. Did you get the actual driver from Samsung website for your phone? I just tried installed the one pdanet offered.
urn357 said:
You guys on AT&T? I never got that message. I know nothing ever popped up like that. Did you get the actual driver from Samsung website for your phone? I just tried installed the one pdanet offered.
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Click to collapse
I did not install any other drivers tho..it was all default but it did ask me to confirm the computer's RSA key
Hallelujah! I finally got it working! It must of been a driver install quirk on my pc. For anyone else with this prob who used a previous phone with pdanet on the same pc like I did ( I used a samsung infuse prior). I went and uninstalled the samsung drivers that were already on my pc and then went to the samsung site and installed the newest ones they had. Hooked the phone back up and after about 6 or 7 seconds (have no idea why it took so long) the drivers on the pc started installing again and cha ching usb debugging was working correctly. The RSA thing popped up after that.
Thanks guys for assuring me it was only my problem and not a mass-wide problem to make me troubleshoot further.
I've been having the same problem but can't seem to find the drivers on the Samsung website. Could you please post the link?
Drivers
http://www.sammobile.com/kies/
http://www.samsung.com/us/support/owners/product/SGH-I337ZKAATT
If your computer recognized (and installs drivers) when your S4 is connected via usb (not in developer mode) but does NOT recognize your S4 when connected with USB debugging this is what you might need to do. It took me 2.5 hours to find this.
Remember to have your phone set to MTP + ADB mode.
to do this:
in phone mode type *#0808#
Choose : AP on upper part and
for USB Setting, choose : MTP.
http://forums.androidcentral.com/samsung-galaxy-s4/282817-pc-cant-detect-galaxy-s4.html
And try everything and I can not more . The phone works correctly, but does not detect the pc ( Unknown Device) even if the drivers installed , USB debugging activated and deactivated ... MTP on and off. I think it's time to change mobile.:crying::crying::crying:
Sorry for my bad English:crying:
edisondem said:
And try everything and I can not more . The phone works correctly, but does not detect the pc ( Unknown Device) even if the drivers installed , USB debugging activated and deactivated ... MTP on and off. I think it's time to change mobile.:crying::crying::crying:
Sorry for my bad English:crying:
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Click to collapse
does it detect it shile in twrp conected? if so
but no on when you are using the phone.? i have this problem what solved mine was reformat my laptop always fix it.
I tried everything
raptorddd said:
does it detect it shile in twrp conected? if so
but no on when you are using the phone.? i have this problem what solved mine was reformat my laptop always fix it.
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Click to collapse
the PC does not detect it in any way , only slow charge. I've tried everything but nothing works :crying::crying::crying:..... sorry for my bad English
edisondem said:
the PC does not detect it in any way , only slow charge. I've tried everything but nothing works :crying::crying::crying:..... sorry for my bad English
Click to expand...
Click to collapse
Reformat computer or try different computer
Assuming, you have no problem with your USB port, USB cable, installed latest LG USB Driver 4.0.4, running Windows 7 or 10...
We need more detailed info from your part to tackle this problem. Are you running on stock rom, kitkat or lollipop? Are your rooted and do you have TWRP recovery?
Then, you need to disable "USB debugging" from the "Developer options" menu. Then replug your USB cable and you can now select MTP instead of charging only mode. Good luck.
Shout out to @raptorddd
cglegion said:
Assuming, you have no problem with your USB port, USB cable, installed latest LG USB Driver 4.0.4, running Windows 7 or 10...
We need more detailed info from your part to tackle this problem. Are you running on stock rom, kitkat or lollipop? Are your rooted and do you have TWRP recovery?
Then, you need to disable "USB debugging" from the "Developer options" menu. Then replug your USB cable and you can now select MTP instead of charging only mode. Good luck.
Shout out to @raptorddd
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Click to collapse
i have fought the no mtp problem and everytime i lost. if you try new things they just dont work. what has worked was to reformat computer then it will work..
I had the same problem with my G2. Unknown usb device, and the error was: "unable to get device descriptor" or something similar. Tried all software solution without success, so i have started to looking for hardware defect. I've changed the usb module, but no success. So, as a last chance, tried another mainboard. And "tadaaaa"... That was the problem. So, start to look for a working g2 with cracked screen, as i did.
Hey guys,
Earlier today I wiped my phone while trying to update the system, but when I tried to install the update it failed. That means that I'm now sitting without an OS on my phone, only able to access TWRP Recovery and Fastboot. I've successfully installed adb drivers and all of that, but when connecting the phone to a computer ADB doesn't find any devices and device manager only sees it as an unknown USB device (Device Descriptor Request Failed). I have been seaching for a couple of hours now and have not been able to find anything that works, so I'm hoping that you guys can help.
Try this
http://forum.xda-developers.com/oneplus-2/general/guide-official-stock-reset-to-oos-2-2-0-t3290707
sonyD4d said:
http://forum.xda-developers.com/oneplus-2/general/guide-official-stock-reset-to-oos-2-2-0-t3290707
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Click to collapse
When I try to update the driver, as it says in step A-7, the only unknown device is the unknown usb device and when I try to update that one with the qc folder, it just says that Windows have determined that it is up to date?
MrFreaky said:
Hey guys,
Earlier today I wiped my phone while trying to update the system, but when I tried to install the update it failed. That means that I'm now sitting without an OS on my phone, only able to access TWRP Recovery and Fastboot. I've successfully installed adb drivers and all of that, but when connecting the phone to a computer ADB doesn't find any devices and device manager only sees it as an unknown USB device (Device Descriptor Request Failed). I have been seaching for a couple of hours now and have not been able to find anything that works, so I'm hoping that you guys can help.
Click to expand...
Click to collapse
Have you tried connecting to PC while in TWRP recovery ? You should be able to access internal storage using mtp. Then you can copy another rom & flash it.
I have tried connecting to Windows 8.1 on a Macbook Pro while in TWRP Recovery, and that's where it said it was an unknown USB device.
MrFreaky said:
I have tried connecting to Windows 8.1 on a Macbook Pro while in TWRP Recovery, and that's where it said it was an unknown USB device.
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Click to collapse
Try with another cable
Yousvel said:
Try with another cable
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Click to collapse
Any other ideas, because I do not own any other USB type C cables. The one I'm using is the one that came with the phone, but I have never had any issues with it.
MrFreaky said:
I have tried connecting to Windows 8.1 on a Macbook Pro while in TWRP Recovery, and that's where it said it was an unknown USB device.
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Click to collapse
Lets try installing the drivers again. If this doesn't work, then it should be a cable issue OR usb port issue. Try this on another pc.
1. Download Oneplus2 USB drivers -> https://www.androidfilehost.com/?fid=24052804347833370
2. Before installing the drivers, Disable Driver Signature Enforcement. -> https://www.youtube.com/watch?v=NM1MN8QZhnk
3. Install the drivers & Restart.
4. Now try either connecting to pc while in TWRP or fastboot.
you can flash factory image through fastboot
MrFreaky said:
Any other ideas, because I do not own any other USB type C cables. The one I'm using is the one that came with the phone, but I have never had any issues with it.
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Click to collapse
Maybe this is a bit annoying but the best solution is to buy another cable since a few weeks ago I had the same problem, bought a new cable and the problem was solved. Hope this helps
Then flash the OS through TWRP using the advanced tool that allows you to sideload files using adb.
B!Gguy said:
Have you tried connecting to PC while in TWRP recovery ? You should be able to access internal storage using mtp. Then you can copy another rom & flash it.
Click to expand...
Click to collapse
How to enter mtp on recovery/fastboot?
I've done the same thing in the past (erase everything) , the solution that worked for me is this:
1.Always have a twrp back up on a usb stick.
2.Buy a cheap usb 2 type c to usb adaptor.
3.Enter twrp and restore the back up.
This way you do not need a pc/drivers etc.
I hope it helps.
simkhadalila said:
How to enter mtp on recovery/fastboot?
Click to expand...
Click to collapse
Enter TWRP recovery & connect to the pc.
B!Gguy said:
Enter TWRP recovery & connect to the pc.
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Click to collapse
I did it but but...can't detect PC my this device (mtp).
simkhadalila said:
I did it but but...can't detect PC my this device (mtp).
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Click to collapse
Looks like you haven't installed oneplus usb drivers. Install the drivers & try again.
Drivers -> http://www.technobuzz.net/oneplus-2-usb-drivers/
usb debugging has screwed up and my phone will not respond to adb from computer as it thinks that the adb signature from the computer has already been trusted but no commands goes through
Try to revoke USB debug permissions and uninstall driver from the computer. Then plug again the phone to the computer and try again.
Potato997 said:
Try to revoke USB debug permissions and uninstall driver from the computer. Then plug again the phone to the computer and try again.
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Click to collapse
how to revoke permissions and where can you find stock huawei p9 lite recovery for mashmallowon vns 31
From developer setting.
Potato997 said:
From developer setting.
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Click to collapse
i flashed a mm backup but now it wont boot to recovery ether
Please, tell me detailed what did you do with your phone. I don't think I get what happened.
For some reason I cannot for the life of me connect the phone to ADB. It, ADB nor Fastboot can ever recognize that my XZP is there. I've done this many times with other phones. I'm positive I have the correct drivers. I'm on a PC with Windows 10. Any suggestions?
You should not be that positive regarding Windows 10 drivers???
Try manually delete the drivers then try again.
droidnew said:
For some reason I cannot for the life of me connect the phone to ADB. It, ADB nor Fastboot can ever recognize that my XZP is there. I've done this many times with other phones. I'm positive I have the correct drivers. I'm on a PC with Windows 10. Any suggestions?
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Click to collapse
I know it sounds stupid, but do you have usb debugging on in developer settings?
Beetle84 said:
I know it sounds stupid, but do you have usb debugging on in developer settings?
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Click to collapse
No it doesn't sound stupid. I actually forgot to do that in the past. However, this time it is on...
Beetle84 said:
I know it sounds stupid, but do you have usb debugging on in developer settings?
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Click to collapse
droidnew said:
No it doesn't sound stupid. I actually forgot to do that in the past. However, this time it is on...
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Click to collapse
I still haven't figured this out if anyone has an idea...
Would factory reseting help at all?
droidnew said:
I still haven't figured this out if anyone has an idea...
Would factory reseting help at all?
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Click to collapse
You can try, but I don't think a factory reset would help. I mean, fastboot should work regardless if you have the drivers installed (drivers will automatically install anyway). Does the blue led light up when you attempt to connect your phone via fastboot?
If you are trying to access ADB via Powershell in Windows 10 it doesn't work. It works with CMD prompt(Admin).
If you have tried with CMD and it didn't work, you may have to try reinstalling the drivers after booting to "Disable Signed Driver Enforcement" in Windows 10.
gowthamachandran said:
If you are trying to access ADB via Powershell in Windows 10 it doesn't work. It works with CMD prompt(Admin).
If you have tried with CMD and it didn't work, you may have to try reinstalling the drivers after booting to "Disable Signed Driver Enforcement" in Windows 10.
Click to expand...
Click to collapse
iArvee said:
You can try, but I don't think a factory reset would help. I mean, fastboot should work regardless if you have the drivers installed (drivers will automatically install anyway). Does the blue led light up when you attempt to connect your phone via fastboot?
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Click to collapse
The blue light does come on when I connect. I have also booted the computer and did the "Disable Signed Driver Enforcement" but I will try again...
gowthamachandran said:
If you are trying to access ADB via Powershell in Windows 10 it doesn't work. It works with CMD prompt(Admin).
If you have tried with CMD and it didn't work, you may have to try reinstalling the drivers after booting to "Disable Signed Driver Enforcement" in Windows 10.
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Click to collapse
I wound up doing this again, and the drivers installed. Maybe they didn't install last time, or I installed more drivers and got the right one in this time.. But, I am now able to connect to ADB and FASTBOOT. Thanks for the help guys!!
I can't unlock bootloader any one have tips to do it..
I got messages att i must install usb drive.. But i don't know how i will this.. I road in sony website but its don't resolve the problem.
Qusay86 said:
I can't unlock bootloader any one have tips to do it..
I got messages att i must install usb drive.. But i don't know how i will this.. I road in sony website but its don't resolve the problem.
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Click to collapse
If you are struggling to find the Google USB drivers for ADB then perhaps unlocking your bootloader is not for you.
Didgesteve said:
If you are struggling to find the Google USB drivers for ADB then perhaps unlocking your bootloader is not for you.
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Is this the problem?
I would suggest to use a live Linux box, things will be much easier.
uzerzer said:
I would suggest to use a live Linux box, things will be much easier.
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Click to collapse
Absolutley, if he can't fanid any USB drivers then building a Linux box will be a doddle:laugh:
droidnew said:
I wound up doing this again, and the drivers installed. Maybe they didn't install last time, or I installed more drivers and got the right one in this time.. But, I am now able to connect to ADB and FASTBOOT. Thanks for the help guys!!
Click to expand...
Click to collapse
May i know which driver you use?