Hi All,
I flashed TWRP to my sm-t320 with Odin in Windows. `adb devices' (in both Windows & Linux) can recognize my device but it always show unauthorized. Does anybody know how to fix that? but it's ok when I'm in twrp (turn off the tablet, then power+volume up to go to twrp: I didn't know this before, so this is for people like me), adb devices works fine.
dxxvi said:
Hi All,
I flashed TWRP to my sm-t320 with Odin in Windows. `adb devices' (in both Windows & Linux) can recognize my device but it always show unauthorized. Does anybody know how to fix that? but it's ok when I'm in twrp (turn off the tablet, then power+volume up to go to twrp: I didn't know this before, so this is for people like me), adb devices works fine.
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Make sure you have USB Debugging enabled on your phone if you do turn it off connect your phone to your PC turn USB Debugging on and see if you get a message to allow your PC to connect to your Tab if you do then allow it.
Also check you have the correct drivers installed when connected to your PC
If you are on windows 7 right click my computer then properties and click Device Manager, look for Samsung Android Phones in the list and expand it, this should then say Samsung Android ADB Interface.
If you don’t see Samsung Android Phones your have the incorrect drivers assigned to you TAB, the one windows installs by default is generally the wrong one.
If you see Samsung Android Phones but when expanded it doesn't say Samsung Android ADB Interface then again the wrong driver is installed.
To correct it right click and select properties, then update driver, then click browse computer, then click let me select from a list Select Samsung Android ADB Interface.
When its installed you may get messages about devices not working properly just click OK to it, unplug you Tab then plug it back in again and wait for it to connect.
Open a CMD and type ADB Devices hit return and you device should be recognised,
If you are using TWRP then when you connect to your device in Recovery mode to your PC you need different drivers for that to work properly again the ones installed by windows as default are not the proper ones, it will work with the default ones but not correctly you probably will not be able to Push or Pull files or apk's.
Tried on windows 10 and 7:
Phone is detected by ADB and commands work no problem. Boot in to fastboot (download mode) and the device isn't found when using "fastboot devices". The phone appeared in device manager with the yellow triangle but I manually updated the driver to "Android Bootloader Interface" however, I still get nothing. Am I missing something?
Thank you.
Mine never has shown in fastboot, if it shows up in device manager it should work fine. To test just try fastboot reboot.
If you corrected the issue with the driver,the problem may be with the versions of Fastboot you are using. You can download the latest Fastboot and ADB files from Google directly if you search for them it should be the first or second link.
You need google usb drivers
I have the latest google usb and platform tools on a windows 7 &10 systems using different usb ports along with multiple cables and I can not detect the phone, but I can flash.
After upgrading to Android Q suddenly my pc can't recognize my pixel as a android device also i can't connect any wired things such as dongle jack or USB Transfer (USB charging options disappeared).
Planning to downgrade to Pie but the problem is my device can't be detected on my pc. Any solutions? Thanks
If you're using a Microsoft Windows machine, I would suggest uninstalling any "Android" drivers from the Device Manager. Then restart the PC, then turn off "USB debugging" and back on for the Pixel, and even "Revoke authorizations" in hopes that it will re-alert & request another authorization and, therefore, verify it being connected and detected on the PC....
After all that -- or if you can only enter in Bootloader Mode -- type the command "fastboot devices" and say here what it outputs. If anything, while in Bootloader Mode, do what I previously said, but look for anything "Android" and "Bootloader" and uninstall those device drivers...
Good luck and hope this helps!
simplepinoi177 said:
If you're using a Microsoft Windows machine, I would suggest uninstalling any "Android" drivers from the Device Manager. Then restart the PC, then turn off "USB debugging" and back on for the Pixel, and even "Revoke authorizations" in hopes that it will re-alert & request another authorization and, therefore, verify it being connected and detected on the PC....
After all that -- or if you can only enter in Bootloader Mode -- type the command "fastboot devices" and say here what it outputs. If anything, while in Bootloader Mode, do what I previously said, but look for anything "Android" and "Bootloader" and uninstall those device drivers...
Good luck and hope this helps!
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Thanks for replying, i already tried to uninstall android driver, but when i try to reconnect, my pc recognize my device as "unknown device"
blancheSX said:
Thanks for replying, i already tried to uninstall android driver, but when i try to reconnect, my pc recognize my device as "unknown device"
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what about the other things I suggested?
Or, so it can be clearer, are you in the System/OS when plugging/reconnecting or in Bootloader Mode?
I ran across the same issue..I followed this video to get rid of the old USB drivers and updated to the new Android driver.. Now my window 10 recognize my pixel 2xl storage completely.
https://youtu.be/Zc_dhxc8iJU
I have this issue before, and after all i got my phone detected. But when i flash it, it say unbootable slot in fastboot screen. After couple onf time, it cant be flashed again and die.... My phone cant turn on in fastboot mode again, it bricked
I had to use the USB dongle to connect a flashdrive to my phone, wait for it to recognize the drive, then unplug the drive and dongle... Then connect phone to PC... Profit!
If anyone is still having the issue of PC not recognizing device in fastboot, please be sure you have UNinstalled the older version(s) of SDK Tools from yhour PC and make sure to INSTALL the latest versions.
You can find the latest version linked in the 9x guide in my signature.
Also, make sure you have both older and newer USB cables handy. The Pixel has a nasty reputation for being finicky with USB cables, try diff cables and different USB ports on your PC.
There is also a basic troubleshooting guide in the same link in my sig.
Best regards!
simplepinoi177 said:
what about the other things I suggested?
Or, so it can be clearer, are you in the System/OS when plugging/reconnecting or in Bootloader Mode?
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i did in 2 conditions, first one is my device turned On (adb is not detected) also 2nd one is my device in bootloader mode (fastboot devices is not detected too)
been trying to update my driver but i always got (error code : 10, device cannot started) i dunno what to do right now
dallas90733 said:
I ran across the same issue..I followed this video to get rid of the old USB drivers and updated to the new Android driver.. Now my window 10 recognize my pixel 2xl storage completely.
https://youtu.be/Zc_dhxc8iJU
Click to expand...
Click to collapse
i tried those tuturial and ended in error code : 10, device cannot started.
SageWilliams said:
I had to use the USB dongle to connect a flashdrive to my phone, wait for it to recognize the drive, then unplug the drive and dongle... Then connect phone to PC... Profit!
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whenever i try to connect a flashdrive with my dongle, there is no option or something, it's just usb charging option appeared.
blancheSX said:
i did in 2 conditions, first one is my device turned On (adb is not detected) also 2nd one is my device in bootloader mode (fastboot devices is not detected too)
been trying to update my driver but i always got (error code : 10, device cannot started) i dunno what to do right now
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Click to collapse
blancheSX said:
whenever i try to connect a flashdrive with my dongle, there is no option or something, it's just usb charging option appeared.
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Click to collapse
So…without you being too definitive…it seems that you’re able to get into your OS…
What I’d like you to do is uninstall and remove Google usb drivers on your computer. Then, download it again HERE: https://dl-ssl.google.com/android/repository/latest_usb_driver_windows.zip . And, in case things don’t work out this time around, if you can please save the (.zip) file on your Desktop or root folder (usually the C: drive). I might have you direct the device detected to the files in this .zip directly.
Then, after installing the USB drivers, I’d like you to uninstall and remove any/all things that are named “platform-tools” (so there will only be ONE "platform-tools" after you re-download it in this step) on the whole device. After, I’d like you to download the latest Windows version HERE: https://developer.android.com/studio/releases/platform-tools . Again, to simplify things, if you can extract it either in your Desktop or root folder (C: drive).
Again, like I mentioned before, I would like for your device to request authorization for your computer again, so if you can please go to the Developers option, and select “Revoke USB debugging authorizations” as well as double-checking you have "USB debugging" enabled…
Only THEN, once these two things are extracted and installed (as is the case in the first step) and you revoked the authorizations, can you plug in your device and USB cord. Watch your phone/device, as it will ask for authorization to connect to your computer, and you’ll have to make sure the box is checked that says “don’t ask this every time” or “remember this device” – I can’t recall off-hand – and then make sure to “Allow” it. By doing this, you can be sure that your computer and device are talking correctly.
*One suggestion that isn’t mandatory is that you select where it says “USB charging” and change it to “MTP” or “file-sharing” (sorry, again, I can’t recall specifically off the top of my head…)
If all things are working well, if you can open up a command prompt (a.k.a. “cmd”, and also make sure you are running it “As an administrator”) and direct it to the platform-tools directory (hopefully you followed my suggestion and kept it simple so it will either be at the root “C:\” or on your Desktop “C:\Users\[username]\Desktop” so it won't be too difficult directing it there...), and run the commands
Code:
adb devices
and
Code:
fastboot --version
.
Hopefully, if you do all of these things, it might get things reset and working from a stable established set up.
If it somewhat works, but the device in your "Device Manager" is showing up something "funky", then it'll take a rather nuanced Windows troubleshooting technique to resolve where I would have you correct the wrong entry/driver in the "Device Manager" and have it specifically point to one of the contents of the .zip files; shown prior.... We'll tackle that if need be and if all this initial beginning troubleshooting doesn't pan out...
Let me/us know how it works out, good luck, and hope this all ends up being helpful…
simplepinoi177 said:
So…without you being too definitive…it seems that you’re able to get into your OS…
What I’d like you to do is uninstall and remove Google usb drivers on your computer. Then, download it again HERE: https://dl-ssl.google.com/android/repository/latest_usb_driver_windows.zip . And, in case things don’t work out this time around, if you can please save the (.zip) file on your Desktop or root folder (usually the C: drive). I might have you direct the device detected to the files in this .zip directly.
Then, after installing the USB drivers, I’d like you to uninstall and remove any/all things that are named “platform-tools” (so there will only be ONE "platform-tools" after you re-download it in this step) on the whole device. After, I’d like you to download the latest Windows version HERE: https://developer.android.com/studio/releases/platform-tools . Again, to simplify things, if you can extract it either in your Desktop or root folder (C: drive).
Again, like I mentioned before, I would like for your device to request authorization for your computer again, so if you can please go to the Developers option, and select “Revoke USB debugging authorizations” as well as double-checking you have "USB debugging" enabled…
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thanks for ur explanation, and i'm sure i already did this 100% as you mentioned before. looking for solution and i found this at pixel community thread : https://support.google.com/pixelphone/thread/14477635?hl=en
and btw when i try to disable and back to enable (again) USB debugging, there's no pop up or something like that, just nothing appear. so i just realized why i got error code : 10 is just because my phone still not detected by PC also i tried in other computer (with windows 8.1 installed) my device is got detected but as "device descriptor request failed" not as an android device. Hopefully next update google will fix this "bug". Once again thank you very much
blancheSX said:
thanks for ur explanation, and i'm sure i already did this 100% as you mentioned before. looking for solution and i found this at pixel community thread : https://support.google.com/pixelphone/thread/14477635?hl=en
and btw when i try to disable and back to enable (again) USB debugging, there's no pop up or something like that, just nothing appear. so i just realized why i got error code : 10 is just because my phone still not detected by PC also i tried in other computer (with windows 8.1 installed) my device is got detected but as "device descriptor request failed" not as an android device. Hopefully next update google will fix this "bug". Once again thank you very much
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Click to collapse
Yeah...I figured as much...I was just making sure to lay down the "ground work" before proceeding...
If you're still willing....what I had planned next was to walk you through manually updating/"editing" the driver (on the PC) to directly look at the Google usb drivers specifically to try and get around the whole "device descriptor" and other (detection) error codes.......
Might want to try uninstall the SDK toolkit, reboot PC, then install the latest SDK toolskit.
Also having both USB 2.0 and 3.0 cables saved me more than once, and is a known thing on the 2XL.
Hello,
I am trying to unlock my bootloader but I my computer (Windows 10) does not recognize fastboot.
When I connect to fastboot (holding volume up button + connecting my phone by USB when it's off, or using the adb reboot fastboot command), the computer does not recognize the phone. I then tried installing drivers (both from Google and Sony) by going into device manager but Windows just doesn't install the drivers.
I then saw this on Sony's website:
Fastboot driver - Sony Developer World
developer.sony.com
So I download the file and pasted it instead of the same file (android_winusb.inf) in the Google driver folder, and it somewhat worked, but Windows said something like unable to find drivers for ADB.
I also tried to install in Windows test mode but to no avail.
No matter what I tried, entering the command fastboot devices in fastboot mode does not give me any output (not even "waiting for device").
What am I doing wrong?
Thank you!
TheeWolf said:
Hello,
I am trying to unlock my bootloader but I my computer (Windows 10) does not recognize fastboot.
When I connect to fastboot (holding volume up button + connecting my phone by USB when it's off, or using the adb reboot fastboot command), the computer does not recognize the phone. I then tried installing drivers (both from Google and Sony) by going into device manager but Windows just doesn't install the drivers.
I then saw this on Sony's website:
Fastboot driver - Sony Developer World
developer.sony.com
So I download the file and pasted it instead of the same file (android_winusb.inf) in the Google driver folder, and it somewhat worked, but Windows said something like unable to find drivers for ADB.
I also tried to install in Windows test mode but to no avail.
No matter what I tried, entering the command fastboot devices in fastboot mode does not give me any output (not even "waiting for device").
What am I doing wrong?
Thank you!
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Did you already disable driver signing? Pretty sure you have to do that with Win 10. I would disable driver signing, and then use " 15 second adb installer" from XDA. Always has worked for me...