Develop Bugs

ADB does not work when using MTP with USB debugging

When I use the MTP mode with USB debugging, the list of devices attached in adb (Command:adb devices) has nothing on it.
However, the PTP mode with USB debugging works with ADB. The system will show the dialog with the RSA-key of my computer and ask me to "Enable USB Debugging" when I change the connection type from MTP to PTP.
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Is there any solution that using ADB with MTP mode? Thanks a lot.:laugh:

I'd blame the drivers on the system. Remove all and reinstall them, using least amount of drivers first. I had the same issue.

This posting may be of interest to you in fixing the problem. http://forum.xda-developers.com/showthread.php?t=2391236

That thread is actually the reversed problem. MTP only works with USB debugging turned on.
I think OP is saying USB debugging is only working with MTP turned on.
My guess is old driver issue. Use Device Manager to remove device *and* remove drivers, then reboot, then install latest Google USB drivers.

sfhub said:
That thread is actually the reversed problem. MTP only works with USB debugging turned on.
I think OP is saying USB debugging is only working with MTP turned on.
My guess is old driver issue. Use Device Manager to remove device *and* remove drivers, then reboot, then install latest Google USB drivers.
Click to expand...
Click to collapse
I believe he has the same issue I have MTP + USB debugging does not allow adb to work. However, keeping USB debugging on and switching to PTP (the camera mode) does allow adb to see the nexus 7 and pop-up the authorization prompt. I've uninstalled the drivers many times trying to get adb working when using MTP and USB debugging, but it never, ever takes. Must be something in the system config, not the driver.

Is this the stock ROM?

sfhub said:
Is this the stock ROM?
Click to expand...
Click to collapse
Yes, I have updated to JSS15R.

This is just a drivers conflicts..its really annoying just keep configuring

true. when mtp or ptp, your nexus is not treated as an android machine any more
Sent from my Nexus 7 using XDA Premium 4 mobile app

[Q] HTC One X Charge only

When rooting my phone,is just usb debbuging enough to be ON or i need to put my phone on CHARGE ONLY...if its possible...because i cant find a way to put im on charge only....thank you

SiciMici said:
When rooting my phone,is just usb debbuging enough to be ON or i need to put my phone on CHARGE ONLY...if its possible...because i cant find a way to put im on charge only....thank you
Click to expand...
Click to collapse
When you connect HTC one X to the PC you should get an interface, with the title choose connection type. I am not sure which is required for rooting. If this interface does not appear go to settings, connect to pc and then click default connection type
Also if you want it to ask you each time you connect to the computer, tick the "Ask Me" box below

Deltakr said:
When you connect HTC one X to the PC you should get an interface, with the title choose connection type. I am not sure which is required for rooting. If this interface does not appear go to settings, connect to pc and then click default connection type
Also if you want it to ask you each time you connect to the computer, tick the "Ask Me" box below
Click to expand...
Click to collapse
Where...in my settings i cant find connect to my pc....when i connect it,it just says usb connected

SiciMici said:
Where...in my settings i cant find connect to my pc....when i connect it,it just says usb connected
Click to expand...
Click to collapse
Its near the bottom of the settings interface,

Deltakr said:
Its near the bottom of the settings interface,
Click to expand...
Click to collapse
Ok...dont think that i am stupid,but its not there....if you want i can tell excatly tell you what do i have under settings

SiciMici said:
Ok...dont think that i am stupid,but its not there....if you want i can tell excatly tell you what do i have under settings
Click to expand...
Click to collapse
Screenshot please

deltakr said:
screenshot please
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Click to collapse
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try dock mode or just go through any computer related and try find this
I have a completely different settings interface

[Q] Can't use Odin.

Whenever I connect my device to PC in download mode, I get a notification from my PC "Your USB device is malfunctioned, it may not work properly, please try again later" something like that.
Odin is unable to detect my device, what should I do?

quanlim said:
Whenever I connect my device to PC in download mode, I get a notification from my PC "Your USB device is malfunctioned, it may not work properly, please try again later" something like that.
Odin is unable to detect my device, what should I do?
Click to expand...
Click to collapse
Hey, it's you again
Have you enabled "USB Debugging" in CM11 settings?
What about your Windows drivers? my device manager shows:
- "SAMSUNG USB Composite Device"
- "SAMSUNG Mobile Modem"

LS.xD said:
Hey, it's you again
Have you enabled "USB Debugging" in CM11 settings?
What about your Windows drivers? my device manager shows:
- "SAMSUNG USB Composite Device"
- "SAMSUNG Mobile Modem"
Click to expand...
Click to collapse
It shows as Android Device, PC can detect phone in normal boot

quanlim said:
It shows as Android Device, PC can detect phone in normal boot
Click to expand...
Click to collapse
In download mode you get only the error and the device manager doesn't show the device?
Have you uninstalled/reinstalled usb drivers?

LS.xD said:
In download mode you get only the error and the device manager doesn't show the device?
Have you uninstalled/reinstalled usb drivers?
Click to expand...
Click to collapse
I tried =(

quanlim said:
I tried =(
Click to expand...
Click to collapse
Also tried deactivating/activating "USB Debugging"?
May u use adb commands while phone is started and connected?
Try also installing ADB/fastboot drivers again please. http://forum.xda-developers.com/showthread.php?t=2588979

If you're not sure if your drivers have been uninstalled correctly, you can follow these steps:
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LG-G3 - USB Debugging not working Windows 10

I purchased an LG-G3. Performed an OTA update to latest: 47A. I connected to my Windows 10 box, enabled debugging, worked fine.
I downgraded using TOT method to 10B. The device is now running 4.4. Reconnected device to Windows 10 box, enabled USB debugging, does not work.
The device only shows up in device manage as a portable device
I have tried the sticky on this forum, unfortunately it does not apply as I do not have any of the items listed to remove
I have uninstalled all LG Driver/LG Verizon Driver/Google driver etc.
I have used USBDeview to remove anything named LG/ADB/Google
I have rebooted my machine, double checked the USB list with USBDeview
I have enabled/disabled/revoked USB Debugging, switched between MTP/PTP, rebooted phone
I feel like every time I google the problem a different way, I end up back at the Google USB driver download page or the LG Verizon driver download page
I would appreciate a fresh set of brains, I have a feeling I am now tunnel visioned and won't ever get out, please help ;0 I never get that prompt on the phone to allow the computer access to the phone, is that permission still on the PC is some fashion and needs to be revoked?
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I ran a system update and the phone downloaded ~200mb file, applied and rebooted. Looks like that was 35B bootstack and now the phone does enable USB Debugging. Unfortunately if I take the phone back to stock USB Debugging still does not work
I also connected the fresh stock phone to another Windows 10 machine with the LG G3 Verizon Drivers installed and could not get USB Debugging to enable...

Cmd as admin, cd *adb path* , adb devices and an authorization should appear on your phone, usually works with me.

myclarity said:
Cmd as admin, cd *adb path* , adb devices and an authorization should appear on your phone, usually works with me.
Click to expand...
Click to collapse
Appreciate the suggestion, tried that and adb devices command just reports no devices connected and no prompt on the phone

mhum said:
Appreciate the suggestion, tried that and adb devices command just reports no devices connected and no prompt on the phone
Click to expand...
Click to collapse
The cmd part as admin is very important, dunno why but it wouldn't recognize my phone unless cmd was started like that.

Where are the "Three dots" to change USB mode?

My phone don't show me the USB Connected/Charging notification anymore.
So I can't change it to MTP mode. It just charge when conneted to the PC USB port.
Googling around I've found thousands of tips like this:
MTP mode can be enabled/disabled in Settings > Storage > (overflow menu or 3 dots right top of the screen) > USB computer connection> tick the MTP
Click to expand...
Click to collapse
Bu I can't find these 3 dots ....
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This may be something I've done because I was able to connect it as MTP before.
I just rooted it with Kingroot and deleted some unwanted apps (most by google).
How can I put these dots back?
LG G3 Stylus LG-D690N
LRX22G
Android v5.0.2

icemagno said:
My phone don't show me the USB Connected/Charging notification anymore.
So I can't change it to MTP mode. It just charge when conneted to the PC USB port.
Googling around I've found thousands of tips like this:
Bu I can't find these 3 dots ....
This may be something I've done because I was able to connect it as MTP before.
I just rooted it with Kingroot and deleted some unwanted apps (most by google).
How can I put these dots back?
LG G3 Stylus LG-D690N
LRX22G
Android v5.0.2
Click to expand...
Click to collapse
It should pop up auto when you plug usb into pc, Rite in your notifications bar I had this issue on my G4 after debloating I could not get but charge only no MTP You may have debloated something needed. I also had this issue with my G3 and it was something to do with the pc install software but I cant quite remember how I did it if I cleared defaults...
Last resort is alway back up on Ext sd And retry stock firmware.... Kingroot is ok But IMO I never use it unless a last resort if you can root with stump or root.bats I recommend them first as they are normally pretty stable... Kingo and king have posed issues in the past or at least they have for me

If it's not coming up try going to developer options and selecting USB Configuration.
Also try toggling USB Debugging

Sorry all.
For some reason my cable was not data transfer capable.
Change cable solved the problem.
mea culpa!