Database Users

if adb devices does not list device, can device be powered down immediately?

have tried to figure out how to turn off aria when connecting the usb and adb devices does not list device. reboot is the next step (volume up and power) and device always reboots and it seems impossible to hold down volume and power and get back into HBOOT / RECOVERY
question is, is it possible to reboot directly into HBOOT ?

Cancel the loop, reboot the phone, and send "adb reboot bootloader" from the prompt, when the HTC Quietly Brilliant screen appears.

seboj said:
Cancel the loop, reboot the phone, and send "adb reboot bootloader" from the prompt, when the HTC Quietly Brilliant screen appears.
Click to expand...
Click to collapse
how can I send *any* adb commands when I am unable to see device?

Can you see the phone in adb when it is powered on normally for use? If you can then when the HTC Quietly brilliant screen comes up your computer should be able to connect to the phone through adb. If it does not then you will want to uninstall HTC Sync and re-install it.. ( if you are running Window) make sure you have no anti-virus or malware scanners running/active as those create havoc causing HTC Sync to not install correctly and the drivers necessary for Windows to see the phone properly to not get installed.

Yes, I can see when normally connected but that was not my original question.
I do not have HTC Sync installed, only SDK USB drivers.
Repeat of my original question:
"..how to turn off aria when connecting the usb and adb devices does not list device. reboot is the next step.."
The reason I ask this, is that as I sit on the REBOOT screen and LOOP is running in background, if adb devices does not see phone, when I press power it will automatically reboot and power up all the way to main menu where I have to (again) do a total power shutdown in order to see HBOOT and RECOVERY.
I am trying to get faster to HBOOT and RECOVERY since adb devices is not listing device.
Is that clear now?

Your question was already answered in post 2. Use adb reboot bootloader at the quietly brilliant screen.

hi2u2 said:
Your question was already answered in post 2. Use adb reboot bootloader at the quietly brilliant screen.
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Click to collapse
wonderful. if only it worked, which it does not since adb (anything) does not work since adb (any command) does not see device

xdafly said:
wonderful. if only it worked, which it does not since adb (anything) does not work since adb (any command) does not see device
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Click to collapse
Have you actually tried though?
If you can see your phone in adb devices when it is loaded into Android, then you should be able to send the adb reboot bootloader after you reboot from recovery. The fact that the phone doesn't list during the loop is irrelevant. Once you've rebooted the phone from recovery, and the phone displays the Quietly Brilliant logo, then it has loaded enough to be recognized by the computer, and the adb command will work, and instantly reboot the phone into the hboot screen.
If the command doesn't work, double check to make sure your command prompt is in the right directory with all the right files, try installing Sync, and / or try reinstalling your driver.

[Q] Cant access bootloader

Hi,
I ran into a problem with my Nexus 4, the plan was to unlock the bootloader using my mac and fastboot. (used this as information but didn't follow it step by step, youtube.com/watch?v=fHZJ2f6JLw0)
I turned off the phone and went into the bootloader with volume down + power button. From here i used "fastboot devices" to secure that i was able to communicate with the phone. My device showed up together with an error message saying "ERROR: could not get pipe properties nexus 4".
Before doing any more i wanted to understand what this message meant so I searched the web without any success. I booted up my android, turned on usb debugging and used "adb devices". This time only my devices showed up and no error messages. I used the "adb reboot boatloader" to access the bootloader once again.
I still had the same error message with "flashboot devices" as before.
From here i didn't do anything more, I may have disconnected the usb from the computer while the terminal window was open and the phone in bootloader but without running any command from fastboot.
So I didn't run "fastboot oem unlock" or anything else.
I turned off the phone and tried to access the bootloader one more time with the volume down + power button. It didn't respond to this any more and nothing happened, the device just stayed turn off.
I turned on the phone and tried to use adb to access the bootloader but now when running the "adb devices" it just responds "-bash: adb: command not found".
I have tried to restore the phone thru the android setting meny without any success. The phone is working fine without any problem except i cant access the bootloader or use adb.
So I desperately need help from you guys. :crying:
Have any of you heard of this problem before?
Regards Rasmus

I have to change my statement.
Actually I succeeded rooting and installing CWM recovery using a win7 computer together with Nexus4 toolkit.
The issue i have right now is that i can't start the device into bootloader using volume and power buttons.
To access bootloader i have to go thru the toolkit and this can be an issue in case i flash a bad rom or kernel and can access android usb debugging.
Is it possible to restore the bootloader?

rallanand said:
The issue i have right now is that i can't start the device into bootloader using volume and power buttons.
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Click to collapse
Are you holding the down volume and pressing the power button?

What OS is the computer that you are using? If you have reset the device, make sure that USB debugging is checked again. I know it sounds dumb, but a lot of times it's the simplest things we forget. Once you factory reset your device, it resets everything.
If you are on Windows 7, make sure you are starting the command prompt from the same location your adb is installed. If you are on Ubuntu or another Linux distro, please let me know which one. This seems like it should be an easy fix for you, but a little more info is needed. Thanks!

Broken Screen Issue + ADB

Hi Friends,
A buddy of mine has a Galaxy 5 with a broken screen. He has downloaded all of the required software.
the problem that when he enters the command “adb devices”, it does not show that his phone the recognized even though he can access it through his computer through the file system.
What should he do to correct this? Thanks in advance!

USB Debugging must be disabled, what does he want ADB for if he can already access it via USB? To Wipe?

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.
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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.
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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.

adb working with device booted, but not in bootloader

adb works fine when the devices is powered on, but once I reboot into the bootloader, it no longer recognizes the device. I am trying to sideload an OTA
I have tried to update to the latest USB drivers, but in Windows 10 I constantly get the error message "The folder you specified doesn't contain a compatible software driver for your device. If the folder contains a driver, make sure it is designed to work with Windows for x64-based systems".
Any advice?

scdavis0 said:
adb works fine when the devices is powered on, but once I reboot into the bootloader, it no longer recognizes the device. I am trying to sideload an OTA
I have tried to update to the latest USB drivers, but in Windows 10 I constantly get the error message "The folder you specified doesn't contain a compatible software driver for your device. If the folder contains a driver, make sure it is designed to work with Windows for x64-based systems".
Any advice?
Click to expand...
Click to collapse
Well... You can't use ADB in bootloader. Only fastboot commands work here.
While in bootloader, use volume up/down till you see "recovery mode". Press power button and you'll reboot to recovery.
Check this guide to sideload the ota:
https://forum.xda-developers.com/nexus-6p/general/guides-how-to-guides-beginners-t3206928
2nd post...

Sorry I should say it also does not work on the prompt where I am supposed to type in the sideload command. I get a no devices found error.
Again it works fine when the phone is booted into the OS.

scdavis0 said:
Sorry I should say it also does not work on the prompt where I am supposed to type in the sideload command. I get a no devices found error.
Again it works fine when the phone is booted into the OS.
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Click to collapse
When entering recovery, are you sure you pressed power button + tapped volume up to see the recovery menu? And from there scrolled down and selected: apply update from ADB? Only from here your phone will be recognized...
Well, if you already did it, i'm not sure how the phone would not be recognized if it does when powered up... Maybe someone else already encountered the issue...

5.1 said:
When entering recovery, are you sure you pressed power button + tapped volume up to see the recovery menu? And from there scrolled down and selected: apply update from ADB? Only from here your phone will be recognized...
Well, if you already did it, i'm not sure how the phone would not be recognized if it does when powered up... Maybe someone else already encountered the issue...
Click to expand...
Click to collapse
Yes this is in fact what I am doing. I receive a device not found error, even though adb works with the device booted into the OS.
In fact, I can do:
adb reboot recovery
Then when recovery comes up:
adb devices
and list of devices attached is blank

I figured this out. I had to unplug and plug back in the phone once I got to the sideload step.

I had this exact issue with Nvidia shield TV. I had old or corrupt adb/fastboot. I redownloaded and set up my environment from scratch, adb worked and fastboot worked