Database Users

Cannot get past "adb devices" command line

I have followed Heisenbergs instructions to the letter but when I issue the adb devices command it just returns the string "list of devices" and that's it. Fastboot devices doesn't work either.
So I'm stuck at the start. Can anyone help me? From what I can tell I may need drivers but I'm new to this so I don't know.
I can give anyone more info if they need it.

I believe part of the instructions are to install the Platform Tools, which should include drivers. Try running the SDK Manager and updating or installing the drivers again. Also ensure you have USB Debugging ON in your Developer settings and OEM Unlocking enabled. Lastly, tap the notification in your shade about the USB connection (I think it defaults to Charging Only) and change it to various modes. Mine seems to only work on PTP mode. When you run the adb devices command you will need to authorize the connection on the phone end the first time by clicking OK so make sure the screen is on and unlocked so you can see it.
Hope this helps.

peckaldee said:
I have followed Heisenbergs instructions to the letter but when I issue the adb devices command it just returns the string "list of devices" and that's it. Fastboot devices doesn't work either.
So I'm stuck at the start. Can anyone help me? From what I can tell I may need drivers but I'm new to this so I don't know.
I can give anyone more info if they need it.
Click to expand...
Click to collapse
u enable OEM Unlock under developer settings?
You enable USB debugging?
Me personally do not get any strings of data returned when im on fastboot
i open CMD, run ADB DEVICES, get message saying the port is opening, and then listing devices... which is empty
but i am able to flash anything i want using fastboot....
try this command and see if it works after that... fastboot reboot-bootloader
it should reboot bootloader for u.. thats a easy way to know its responding to u

Is the device showing properly in the Device Manager when it's connected to your system?

hEaTLoE said:
Is the device showing properly in the Device Manager when it's connected to your system?
Click to expand...
Click to collapse
It shows up in windows explorer as "Nexus 6p" when I plug in the USB cable.
I have USB debugging and unlock bootloader checked in settings.
My fastboot devices command returns nothing.

peckaldee said:
It shows up in windows explorer as "Nexus 6p" when I plug in the USB cable.
I have USB debugging and unlock bootloader checked in settings.
My fastboot devices command returns nothing.
Click to expand...
Click to collapse
Did you change the USB mode? Mine shows in Explorer as you described but won't work in ADB/Fastboot until I change it to PTP.

fury683 said:
Did you change the USB mode? Mine shows in Explorer as you described but won't work in ADB/Fastboot until I change it to PTP.
Click to expand...
Click to collapse
Yeah I tried every option. Nothing.
The instructions say the fastboot devices command should return my serial number and it does not.

When booted into the bootloader one it tells me on one line phone LOCKED and on another line says download mode DISABLED.
Don't know if this has anything to do with my problems but I still cannot get a return on the fastboot devices command in order to proceed with the unlock command of "fastboot flashing unlock"

remember that u need latest fastboot for this to work.
did u updated the SDK manager to the latest? i had to do that in order to work for 6P

chaco81 said:
remember that u need latest fastboot for this to work.
did u updated the SDK manager to the latest? i had to do that in order to work for 6P
Click to expand...
Click to collapse
I'm using sdk manager revision 24.4.1

peckaldee said:
I have followed Heisenbergs instructions to the letter but when I issue the adb devices command it just returns the string "list of devices" and that's it. Fastboot devices doesn't work either.
So I'm stuck at the start. Can anyone help me? From what I can tell I may need drivers but I'm new to this so I don't know.
I can give anyone more info if they need it.
Click to expand...
Click to collapse
I had the same issue ,it was down to when I plugged the phone into the PC for the first time,it installed the Google.USB driver ,but it didn't install the driver for the adb interface,I had to download it from Google and install it manually

I also had the same issue, I had an old Clockworkmod generic driver that I was using for my Samsung Galaxy S5 installed.
Go to Device manager (either type it in the start menu, or: right click This PC, click manage, and click device manager), plug in your unlocked Nexus 6P phone and watch for a new item to pop up. If it says android something, uninstall it. I had to uninstall 3 times, then reinstall the drivers from the SDK before it would work.

I used the skipsoft toolkit to install the fb drivers; worked for me. http://forum.xda-developers.com/nex...ol-skipsoft-android-toolkit-nexus-6p-t3234159
but like others said, you may have to manually remove any that are already installed in windows, although I think that is one of the options in the toolkit.

mbonus said:
I used the skipsoft toolkit to install the fb drivers; worked for me. http://forum.xda-developers.com/nex...ol-skipsoft-android-toolkit-nexus-6p-t3234159
but like others said, you may have to manually remove any that are already installed in windows, although I think that is one of the options in the toolkit.
Click to expand...
Click to collapse
This worked. Now my commands in terminal are working correctly. thanks all for the help

Got A device to pop up under the command adb devices, but nothing under fastboot devices. Any tips? Had to follow the skipsoft instructions to install adb/fastboot devices. Yes USB Debugging is on and the OEM unlocking is set to allow..
Christ I'm retarded. Sorry boys, thought my phone was in the bootloader when I was trying this command LOL

Same problem
peckaldee said:
When booted into the bootloader one it tells me on one line phone LOCKED and on another line says download mode DISABLED.
Don't know if this has anything to do with my problems but I still cannot get a return on the fastboot devices command in order to proceed with the unlock command of "fastboot flashing unlock"
Click to expand...
Click to collapse
I'm having the same problem. Did you ever figure out what was wrong?

mbonus said:
I used the skipsoft toolkit to install the fb drivers; worked for me. http://forum.xda-developers.com/nex...ol-skipsoft-android-toolkit-nexus-6p-t3234159
but like others said, you may have to manually remove any that are already installed in windows, although I think that is one of the options in the toolkit.
Click to expand...
Click to collapse
Solved my problem as well. Thanks!

Device not recognized in fastboot mode

Hi. I am trying to unlock the bootloader. I am on windows 10. What drivers do I install for this to be recognized in bootloader mode. I am using the international version.

Guys, it's ok. I was able to figure out what was the driver needed for in Windows 10. Mods, you may close this topic.

Soulj4h said:
Guys, it's ok. I was able to figure out what was the driver needed for in Windows 10. Mods, you may close this topic.
Click to expand...
Click to collapse
what was the issue? im having the exact same issue, all drivers are fine for adb and bootloader, however when i try to use command fastboot devices, nothing shows up. i even turned off deriver signature enforcement in win 10 settings. any help appreciated!

kirill3r said:
what was the issue? im having the exact same issue, all drivers are fine for adb and bootloader, however when i try to use command fastboot devices, nothing shows up. i even turned off deriver signature enforcement in win 10 settings. any help appreciated!
Click to expand...
Click to collapse
me too

For me, once I completed a adb reboot bootloader I had to switch to the bootloader version of the adb driver.
I used miniadb, search here and I am sure you will find it. You need to enable developer options & USB debugging of course.
Hope that helps.
Note: this was under windows 7 but should still be relevant.

Moto G4 seen by Windows but not by adb in fastboot mode

I'm trying to unlock the bootloader on my XT1622.
I can transfer files etc and backup when connected to PC and in Windows
I have installed the drivers and fastboot and adb and opened a cmd window in Admin mode in the directory where fastboot.exe and adb.exe are installed.
I have restarted the phone in fastboot mode (power up plus Vol Down) and connected by USB cable to my PC but when I type adb devices I get no information coming back.
Does anyone have any idea, please, where I may be going wrong?

Anyone able to help, please?
My post above is getting a number of views but sadly no replies.
Since posting I have tried different cables, different USB ports and even installed the drivers on my wife's laptop, but to the same effect - the device is seen in File Explorer but after booting into bootloader both fastboot devices and adb devices return blanks.
I think I'll just give up on the idea, which is a shame as accomplished it easily on my old Nexus tablet and on previous Moto G iterations.

actomox said:
My post above is getting a number of views but sadly no replies.
Since posting I have tried different cables, different USB ports and even installed the drivers on my wife's laptop, but to the same effect - the device is seen in File Explorer but after booting into bootloader both fastboot devices and adb devices return blanks.
I think I'll just give up on the idea, which is a shame as accomplished it easily on my old Nexus tablet and on previous Moto G iterations.
Click to expand...
Click to collapse
adb mode doesn't work when you are in the bootloader. But fastboot should. Boot into your phone and go to settings/Developer options and make sure you have OEM unlocking and Android debugging both enabled. Then on your PC connect your cable and open a command window. type the command "adb devices" and see if your phone shows up now. If so you can then boot into the bootloader via the command "adb reboot bootloader" While in the bootloader type the command "fastboot devices" and see if your phone shows up. If so you are good to go.
Oh, and I am assuming you have a non-Amazon model?

Still no show
Thanks Palmyra. I have followed those instructions to the letter.
In Developer options both OEM unlocking and USB debugging are switched on.
When I connect to the PC and run adb devices in a CMD window it first responds that daemon has been successfully started then that the list of devices is attached but it then returns me to the command prompt.
I did then try 'adb reboot bootloader' but it returned 'error: device not found' - not unexpected given the first command result.
In File Explorer however under this PC it does list Moto G(4) and I am able to explore the phone contents there.
It is not an Amazon model.
I really am at a loss to understand why this is happening.
pastorbob62 said:
adb mode doesn't work when you are in the bootloader. But fastboot should. Boot into your phone and go to settings/Developer options and make sure you have OEM unlocking and Android debugging both enabled. Then on your PC connect your cable and open a command window. type the command "adb devices" and see if your phone shows up now. If so you can then boot into the bootloader via the command "adb reboot bootloader" While in the bootloader type the command "fastboot devices" and see if your phone shows up. If so you are good to go.
Oh, and I am assuming you have a non-Amazon model?
Click to expand...
Click to collapse

actomox said:
Thanks Palmyra. I have followed those instructions to the letter.
In Developer options both OEM unlocking and USB debugging are switched on.
When I connect to the PC and run adb devices in a CMD window it first responds that daemon has been successfully started then that the list of devices is attached but it then returns me to the command prompt.
I did then try 'adb reboot bootloader' but it returned 'error: device not found' - not unexpected given the first command result.
In File Explorer however under this PC it does list Moto G(4) and I am able to explore the phone contents there.
It is not an Amazon model.
I really am at a loss to understand why this is happening.
Click to expand...
Click to collapse
Have you installed Motorola Device Manager? I had your same issue until I had installed the Motorola drivers.

Still no joy
negusp said:
Have you installed Motorola Device Manager? I had your same issue until I had installed the Motorola drivers.
Click to expand...
Click to collapse
Thanks. Yes, I have installed Motorola Device Manager. In Windows Device Manager the MotoG4 shows under Portable Devices only when USB set to Charging or File Transfer and as an Android device with Motorola Device Manager when connected as PTP. The situation has persisted since updating to Nougat and 'adb devices' draws a blank no matter which USB connection mode I use.

actomox said:
Thanks. Yes, I have installed Motorola Device Manager. In Windows Device Manager the MotoG4 shows under Portable Devices only when USB set to Charging or File Transfer and as an Android device with Motorola Device Manager when connected as PTP. The situation has persisted since updating to Nougat and 'adb devices' draws a blank no matter which USB connection mode I use.
Click to expand...
Click to collapse
Did an RSA key dialogue ever pop up when you plugged it into your PC?
If fastboot shows no devices when your phone is in fastboot mode (voldown+power hold), then something is seriously off. Have you tried multiple USB cables?
On your wife's PC did you make sure to install adb/fastboot and drivers: https://forum.xda-developers.com/showthread.php?t=2588979
And make sure to run the cmd shell as administrator/root? (right click cmd, click run as admin)

Will double check everything
Will double check all of those pointers over the weekend and report back. Thanks

Success at last
Went onto my wife's computer and deleted all that I could find relating to SDK and Motorola. Re-installed adb tools and the Motorola drivers and now adb devices return the details of the connected phone. Onto the next stage of unlocking the bootloader and then rooting. Thanks for the help.

[HELP]Device not detecting in fastboot mode

I had installed Moto drivers and also enabled the usb debugging but my my device is not showing in fastboot mode.
Seriously need help.
Thank you.

Just to clarify, when you reboot your device into the bootloader (fastboot), if you type the command 'fastboot devices' (without quotes) in ADB, you get nothing showing up in the device list?
Which Moto drivers are you using, what device do you have and are you issuing the commands via minimal ADB or another ADB command tool?

echo92 said:
Just to clarify, when you reboot your device into the bootloader (fastboot), if you type the command 'fastboot devices' (without quotes) in ADB, you get nothing showing up in the device list?
Which Moto drivers are you using, what device do you have and are you issuing the commands via minimal ADB or another ADB command tool?
Click to expand...
Click to collapse
I am using Motorola device manager drivers and using minimal adb tools
When I type command mfastboot devices nothing shows.
And I am trying to flash TWRP recovery it's saying waiting for device

Robinson#2 said:
I am using Motorola device manager drivers and using minimal adb tools
When I type command mfastboot devices nothing shows.
And I am trying to flash TWRP recovery it's saying waiting for device
Click to expand...
Click to collapse
Turn on your phone and run " adb devices " then see if it's getting connected in power on mode or not.. if not then try to install Adb Drivers..

Tried with ADB drivers still not working. I think its a driver problem how to reset drivers in Windows 10 machine

Robinson#2 said:
Tried with ADB drivers still not working. I think its a driver problem how to reset drivers in Windows 10 machine
Click to expand...
Click to collapse
It's same as you do in other Windows, go to "Device Manager" you will find device related name in that Tree,
Uninstall it and update again..

____Mdd said:
It's same as you do in other Windows, go to "Device Manager" you will find device related name in that Tree,
Uninstall it and update again..
Click to expand...
Click to collapse
Tried that but didn't worked

Robinson#2 said:
Tried that but didn't worked
Click to expand...
Click to collapse
Is it same computer that you used to unlock?
Had it worked to get unlock data and for unlocking..?

____Mdd said:
Is it same computer that you used to unlock?
Had it worked to get unlock data and for unlocking..?
Click to expand...
Click to collapse
Yes it's the same computer I used to unlock bootloader and flashed stock nougat with fastboot method 3 months back.

Robinson#2 said:
Yes it's the same computer I used to unlock bootloader and flashed stock nougat with fastboot method 3 months back.
Click to expand...
Click to collapse
If installing drivers again, use of different USB port, different data cable don't work then better to use different PC..

____Mdd said:
If installing drivers again, use of different USB port, different data cable don't work then better to use different PC..
Click to expand...
Click to collapse
I am going to try with a bootable pendrive with linux mint.

Robinson#2 said:
Tried with ADB drivers still not working. I think its a driver problem how to reset drivers in Windows 10 machine
Click to expand...
Click to collapse
If you're on Windows 10 with an UEFI firmware, I recall you need to disable driver signature enforcement if you wish to use fastboot. Credit to: https://forum.xda-developers.com/showpost.php?p=70792544&postcount=2028
Hopefully it'll work with the Linux distro though

echo92 said:
If you're on Windows 10 with an UEFI firmware, I recall you need to disable driver signature enforcement if you wish to use fastboot. Credit to: https://forum.xda-developers.com/showpost.php?p=70792544&postcount=2028
Hopefully it'll work with the Linux distro though
Click to expand...
Click to collapse
This was very helpful. Took me hours to find it but glad I did. On to step 2. lol How I was able to fix not being able to load anything in fastboot was this.
1. I right clicked on the Motorola_Mobile_Drivers_64bit.msi and selected uninstall. Repair did nothing.
2. Rt click view properties of Motorola_Mobile_Drivers_64bit.msi.
3. On the general tab I noticed it was blocked so I unblocked it.
4. Then switched to Compatibility tab.
5. Selected run compatibility mode, any previous version of windows.
--This stops the version checker
6. Hit apply save and ran it.

MrTwigglesworth said:
This was very helpful. Took me hours to find it but glad I did. On to step 2. lol How I was able to fix not being able to load anything in fastboot was this.
1. I right clicked on the Motorola_Mobile_Drivers_64bit.msi and selected uninstall. Repair did nothing.
2. Rt click view properties of Motorola_Mobile_Drivers_64bit.msi.
3. On the general tab I noticed it was blocked so I unblocked it.
4. Then switched to Compatibility tab.
5. Selected run compatibility mode, any previous version of windows.
--This stops the version checker
6. Hit apply save and ran it.
Click to expand...
Click to collapse
Bro i didi not detecting please help

Fastboot wont recognize my OP5

Windows 10 laptop.....ADB and fastboot are installed, ADB recognizes device. Fastboot will not, Googled this problem and tried several things still no fastboot... any help will be greatly appreciated.

TENlll423 said:
Windows 10 laptop.....ADB and fastboot are installed, ADB recognizes device. Fastboot will not, Googled this problem and tried several things still no fastboot... any help will be greatly appreciated.
Click to expand...
Click to collapse
What device? which oos version? What steps did you take exactly? Did you tried switching firewalls off? Did you tried other pc? Did you follow this guide https://forum.xda-developers.com/oneplus-5/how-to/oneplus-5-unlock-bootloader-flash-twrp-t3624877 and use the drivers provided there? Can you reboot your device to fastboot mode? Is your bootloader unlocked already or never?

OnePlus 5... Nougat custom rom... Encrypted.... Rooted.... ADB fastboot from Snoop on windows 10... I'm going to disable firewall and uninstall ADB and reinstall. Then see if that helps.
ADB recognizes device... Fastboot does not.. my phone is unlocked and I can get it into fastboot by doing the power and volume up..
I reset my computer last night so I work nights when I get home this morning I'm going to give it another whirl .....thanks for the help.

TENlll423 said:
Windows 10 laptop.....ADB and fastboot are installed, ADB recognizes device. Fastboot will not, Googled this problem and tried several things still no fastboot... any help will be greatly appreciated.
Click to expand...
Click to collapse
I had similar problem I was able to fix it by following below steps,
Go to fastboot
Connect phone to pc
Open device manager
Find your device and uninstall device
Click scan for hardware changes in device Manger
Then it will again show your device in device Manger
Now right click device and select update drivers
Device Manger will automatically download and update drivers for device.

Chamaka said:
I had similar problem I was able to fix it by following below steps,
Go to fastboot
Connect phone to pc
Open device manager
Find your device and uninstall device
Click scan for hardware changes in device Manger
Then it will again show your device in device Manger
Now right click device and select update drivers
Device Manger will automatically download and update drivers for device.
Click to expand...
Click to collapse
thanks. I'm going to give it a try.

Chamaka said:
I had similar problem I was able to fix it by following below steps,
Go to fastboot
Connect phone to pc
Open device manager
Find your device and uninstall device
Click scan for hardware changes in device Manger
Then it will again show your device in device Manger
Now right click device and select update drivers
Device Manger will automatically download and update drivers for device.
Click to expand...
Click to collapse
Thank you so much... Your instructions solved my issue..