ADB not working on my s6 - Galaxy S6 Q&A, Help & Troubleshooting

For some reason I cant seem to get adb working on the s6. I enter the command for adb devices but none are shown.
I installed the samsung USB drivers and ensured debugging was enabled in developer mode.
thoughts?

Related

adb devices just won't show anything

adb devices doesn't show anything. I have tried it with linux and windows (with Motorola drivers installed), it doesn't work. I can access the phone when I have enabled MTP, but it just won't show in adb. I have killed and started adb server so many times, it's frustrating.
The thing is, the first time (yesterday) it worked! I could reboot into fastboot with adb but then nothing worked anymore.
Any ideas?
Maybe silly question, but: is USB debugging activated on the phone? If yes, try to switch between MTP and Camera (PTP) under "USB computer connection" option. You should get the authorization prompt on your phone when everything is fine.
Yes, USB debugging is activated. I already tried both MTP, PTP, and neither, but I don't get any authorzation prompts. I revoked all previos prompts, but still nothing. Thanks for the suggestion though!
Are you on bootloader or recovery or normally on os
I tried all three.
Try playing with the USB cable - change it, change the USB slot on the PC that it's connected to, etc.
I only have one USB cable, but I already tried it on several USB slots.
It worked! I had to put sudo in front of my adb commands! Yay! :victory:

Phone only recognized in PTP mode (linux)

I have a phone that is only well recognized by pc or adb in PTP mode. In MTP mode doesn't appear, and in adb appears like ?????????. It is running android 6.0.1 and I tried it in two different linux.
I need to use the command dd with the phone so (I think) I have to access it via MTP mode.
How can I do to make it work in MTP?

Android 10 ADB

Hey guys so question.
Is ADB broken with Android 10 at the moment? I updated through the installer.
Now when I get on fastboot mode and type fastboot devices, I see my phone poop up. But I can't see ADB devices it gives me a no devices found.
*ADB debugging is on
If I do ADB reboot bootloader while the phone is on, it works and it also gives me the device under list when I type it while the phone is on.
Any of you have seen this?
I'm trying to disable some apps through ADB but when the
Cj214 said:
Hey guys so question.
Is ADB broken with Android 10 at the moment? I updated through the installer.
Now when I get on fastboot mode and type fastboot devices, I see my phone poop up. But I can't see ADB devices it gives me a no devices found.
*ADB debugging is on
If I do ADB reboot bootloader while the phone is on, it works and it also gives me the device under list when I type it while the phone is on.
Any of you have seen this?
I'm trying to disable some apps through ADB but when the
Click to expand...
Click to collapse
You can't see the device while on fastboot mode of you type adb devices.
You need to make sure debugging is on in the developer preferences.
ADB appears to be working just fine for me.
When using adb make sure you have debugging enabled and grant the popup on screen
adb is not fastboot. You can use adb on twrp or booted system. Fastboot is on bootloader mode.
Also need to make sure that the proper USB drivers on the computer are installed/updated.
Cj214 said:
Hey guys so question.
Is ADB broken with Android 10 at the moment? I updated through the installer.
Now when I get on fastboot mode and type fastboot devices, I see my phone poop up. But I can't see ADB devices it gives me a no devices found.
*ADB debugging is on
If I do ADB reboot bootloader while the phone is on, it works and it also gives me the device under list when I type it while the phone is on.
Any of you have seen this?
Click to expand...
Click to collapse
This is working exactly as intended, and not exclusive to Android 10, but rather has been the case as long as I can remember (Jelly Bean? KitKat? Maybe much earlier?):
adb: Only works when booted to OS or in TWRP. Debugging required to be toggle on in phone settings. Does not work in bootloader-fastboot mode.
fastboot: Only works in bootloader-fastboot mode. Debugging is not required to be toggled on.
D:\OnePlus3\Fastboot>adb sideload stock7.zip
opening 'stock7.zip'...
connecting...
adb server version (40) doesn't match this client (39); killing...
* daemon started successfully *
falling back to older sideload method...
terminate called after throwing an instance of 'std::bad_alloc'
what(): std::bad_alloc
Thats what adb gives to me...
Bringer1 said:
D:\OnePlus3\Fastboot>adb sideload stock7.zip
opening 'stock7.zip'...
connecting...
adb server version (40) doesn't match this client (39); killing...
* daemon started successfully *
falling back to older sideload method...
terminate called after throwing an instance of 'std::bad_alloc'
what(): std::bad_alloc
Thats what adb gives to me...
Click to expand...
Click to collapse
Sounds like another adb server is still running. What does adb kill-server and then trying again do
a second adb server was running.
TNX
Can I mount system rw using adb enabled recovery img from the following link:
https://forum.xda-developers.com/7t-pro/development/recovery-oxygen-os-stock-recovery-adb-t3991865

fastboot/adb commands not working

Just got a pixel 3a, it's running android 9. I want to unlock the bootloader. I'm following one of the popular root guides on this forum. I can't seem to get adb or fastboot to find my device.
Installed ADB applications from https://developer.android.com/studio/releases/platform-tools.html
Turned on developer options in phone, turned on USB debugging, plugged in phone.
Wasn't prompted for device authorization from phone.
Changed USB connection mode to PTP.
I have tried all USB connection modes, I verified the cable used to connect the pc to the pone is a data cable as I can transfer data when the phone usb mode is set to file transfer, ptp, or midi​Installed adb/phone device driver using https://developer.android.com/studio/run/win-usb
Still no debugging authorization prompt, but device manager lists the phone under 'Android Device' as 'Android Composite ADB Interface'.
'adb devices' doesn't list anything, tried 'adb kill-server', 'adb start-server', and 'adb usb'
'adb devices' doesn't list anything
reboot phone into fastboot by shutting down and holding power+volDown
'fastboot devices' doesn't list anything
Rebooted my pc, rebooted the phone, retried everything.
I'm at a loss, any suggestions?
Yea I've had some issues with adb/fastboot on windows as well. Sometimes it just won't detect the device, rebooting into my Linux install finds it instantly though. I haven't looked into how to fix it yet though as I can always just reboot to Linux. If you're on a version of windows that supports WSL, perhaps you should try that?
Sent from my Google Pixel 3a XL using XDA Labs

Question Phone can't recognize USB or ADB

Hello all,
My OnePlus 7 Pro, can't recognize USB through my Windows PC, I don't get the prompt to connect to my Win PC.
Also I enabled ADB with Developter Options. I go to fastboot and also after adb devices and fastboot devices command, he can't recognize my device.
My OnePlus 5T is working with ADB and normal USB Win PC, tried two cables and laptops.
I did an run Android 10, now 11, beta etc nothing works! The phone can charge etc.
Please help. Reset etc tried also.
it is known issue ADB don't work on USB 3.0 ports
just goto BIOS > Advanced > USB > XHCI and change the setting to Disabled.
This will make the ports run in USB 2 mode, and fastboot and ADB works as usual.
ineedroot69 said:
it is known issue ADB don't work on USB 3.0 ports
Click to expand...
Click to collapse
Can't confirm this. At least latest version of ADB works at me with USB 3.x ports.
Nvm I didn't read the thread well if the PC can detect the other phone on ADB perhaps you can try "revoking USB debugging authorization" so it would ask for permission again

Categories

Resources