Once I switched to it, everything just worked. Additonal Update: Do not underestimate the value of a good USB cable.Sometimes just swapping cables will help. Enable both. Update for newer versions of adb, ~/.android/adb_usb.ini has to be removed. In guest install java jre (if you don't have java installed). Its damn strange but just plugging to the USB port located next to Thunderbolt port on my mid-2014 MBP with Retina worked! Each Android device has a USB vendor/product ID. Now connect the Android device to your Mac and execute the adb devices command. If not, add the device hardware id and install it from the device manager. After disabling signature verification on windows 10, connect your phone in fastboot mode & open Device Manager on Windows & look for Other > Android device.If it is found, This means Windows 10 is not having proper drivers to recognize fastboot device. [FIX 2]If you have earlier Allowed the RSA Fingerprint key, then you should now get the alphanumeric ID and the Check for Connected Devices. Connect and share knowledge within a single location that is structured and easy to search. There are charging-only cables and all-purpose ones. Once done navigate to the platform-tools folder which was created when you downloaded ADB and fastboot. I discovered there are two types of USB cables: And it’s hard to know what type is a USB cable. GoTo DeviceManager, then right click on the android device and click uninstall driver. Then you have to install the USB driver in Windows (it works for me in Windows 8.1): (Copy and paste from http://developer.android.com/tools/extras/oem-usb.html#InstallingDriver:). Now you can go have fun with the adb command. If you are using following devices: Samsung S3 GT-I9305 (Android 4.1.2) Mac OS 10.6.8, (if you are not using Samsung device, change the Vendor ID “0x04e8” to the correct value of your Vendor). Windows users need to open Command Prompt, and Mac & Linux users need to open Terminal. Mar 28, 2012 at 5:42 PM. I have been struggling for some days with this now. Android Studio was uninstalled in earlier time and also i tried to reinstall but was not a solution at all. running latest version of adb, fastboot. This will launch the "Hardware Update Wizard". Installing Samsung Kies and using their tool to reinstall device drivers, is what finally worked for me with my Galaxy S3 and Tab S 8.4. It is conceivable that google has fixed the issue for that phone since my answer was posted (I can no longer test to see if this is the case), in which case I agree that the google driver may be a better choice. I installed the drivers but it still says ADB/Fastboot device not found… If it is set as “Use for” charging for example the device won’t be detected by ADB. I had the same problem on a LG G3 Device that was not getting detected on a Mac. How To Fix ADB Device Unauthorized Message On Android. Open the Device Manager, expand the Android Device option, select Android Composite ADB Interface and hit the Delete key. Leave a comment. The PC install new hardware appropriate drivers for a few minutes (phone without battery). To enable the developer mode, setting->About phone, tap Build number option 8 times continuously, Go to Settings-> Developer options and Turn on USB debugging, From the above steps it didn't work try this step, Go to Settings->Security and turn on Allow Unknown Resources, You have to download the drivers from the SDK manager (extras → Google USB Driver). pay attention also to USB hubs: sometimes the problem is not on the cable itself but on the power supplied to Vcc, so it may happen that too many devices connected to the same USB hub may cause. After getting the devices connected but you suddenly unplug the USB cable, and suppose now “adb devices” cannot see your device any more, even after “adb kill-server”, in this case, you may want to try the following: (1) power off your Mac (2) disable “USB debuggine” on your Samsung device (3) power off your Samsung device (4) power on your Mac (5) power on your Samsung device (6) enable “USB debuggine” on your Samsung device (7) connect the USB cable (8) Run “adb devices” (9) You should see the attached device now, Solution specific to Nexus 4 and Nexus 5 for OS X, Got no device listed in the “List of devices attached” when I ran: adb devices. Inside that folder’s address bar, type in CMD and hit Enter. In the above example, my device is named “SomeDevice” (I did that in photoshop to hide the real device manufacturer). Thanks! After I downloaded it manually and installed it, I was able to do it. If you connect an another Android device through OTG and have USB debugging activated there, you would/might be able to run adb successfully. I needed to delete the .android config directory from the user directory because I moved the directory. These are the easiest way to install ADB and fastboot on Mac PC. ADB is infact a remote control which you can use to perform tedious tasks such as Changing recoveries, Unlocking Bootloader , Flashing Custom ROM , … This solved the problem. See also: [Guide] How to Install ADB [official] on Windows, macOS, and Linux These can be downloaded for Windows and Mac (Android devices, ADB and Fastboot), generally from the official websites of device manufactures, but in case you are facing trouble, we have archived a list of all the main manufacturers and links to their USB drivers/ PC Suite (which include driver). Turn on debugging in the Nexus 10 settings Developer menu (tap "About Tablet" 7 times to get that menu). connect via TCP adb connect IP:PORT. If you are in Windows launch ADB / Command Prompt in Run as Administrator Mode only!! @rds you are right. For example, for the BLU STUDIO 5.5 S, I added the following 2 lines as instructed in the 2 locations as instructed. Looks something like this: List of devices attached HT99PHF02521 device . run scrpy scrcpy After trying every solution given here, with no success, I found this: Browse my computer for drivers -> Let me pick from a list of device drivers on my computer. For my issue and after long time suffering with Meizu C9 Pro witch require just android ADB drivers (no special drivers) referring to manufacturer and it solved in my Windows 7 PC by the bellow steps. Why don't beryllium and magnesium dissolve in ammonia? In guest get the adk zip file and put it somewhere permanent. 0. I don't have "ADB device" in my Device Manager. Also, run "adb devices" after getting into the platform tools folder in the Android SDK (unless you have that folder on your system path already), otherwise the command won't be found. Have tried on both mac and win10 but same issue on both. Connect your Android device (phone, tablet, etc.) So I looked around for that issue, and found the solution here (credits to the original source): Not sure step 4. is of any use here on macOS, however I did all the steps and it worked well. Note that even if you don't have a sd card, you should have a partition called /sdcard on the internal memory, which you usually can push files to. As the final step, Windows should have identified the device as Android ADB Interface and once that is done, you should be able to go back, open your CMD window and run the command "adb devices" as instructed in this tutorial and now you should see that the phone is now discovered and communicating. adb: device not found After a lot of searching online, I figured out that the problem was that the Hardware ID of my Nexus 7 when in recovery mode was not listed in "android_winusb.inf" file from the Google Android Windows USB Drivers . If you have encountered the same problem when you try to use ADB command, it means ADB cannot work normally, and you could not control Android device with ADB command on computer at that time. Confirm you have the correct platform SDK tools. It was proposed by @user908643 in this comment. I am running 10.6.8 and the device is a Xoom 2 running 3.2.2. Great suggestion. Do to device manager, right click on ADB device and click update driver software.