Develop Reference

I am unable to find my device even after installing the USB Driver

Steps Followed:
Installed the USB Driver using the link: https://developer.samsung.com/galaxy/others/android-usb-driver-for-windows .
After successful installation, I tried to check the device if its getting listed by run the command adb devices.
I am not finding my device under the list of devices.

Make sure you have dev mode on your phone this is usually requires you to go to system and clicking the version number 5 times or so, then enable USB debugging once this is done under developer options.

Enable your ADB in your Android
-> First go to Settings->Developer Options
-> Then On or Enable your ADB Mode

Open your notification tab and check if it's showing USB connected or not.
If you click on that notification, it will give you options to chose to connect with USB under which mode.
There you can select 'File Transfer' mode.

I am getting error when i install my Android app in device Redmi 3s prime, and it is working on genymotion emulator

I'm having this error:
$ adb push
F:\skylixwork\CollagePhoto\app\build\outputs\apk\app-debug.apk
/data/local/tmp/com.collagephoto java.io.IOException: An existing
connection was forcibly closed by the remote host
Error while
Installing APK
Installation failed with message INSTALL_CANCELED_BY_USER.
It is possible that this issue is resolved by uninstalling an existing version of the apk if it is present, and then re-installing.
WARNING: Uninstalling will remove the application data!
Do you want to uninstall the existing application?

Works !
enable developer mode - In your phone, go to Settings, About phone and click on MIUI version 7 times. You’ll see a pop up which says you are a developer now.
Go back to Settings, Additional settings, Developer options and enable USB Debugging.
Connect your phone to your PC/Mac and on the phone authorize your computer
go back to Developer options, scroll down to find Turn on MIUI optimization and disable it. Your phone will be rebooted
I solved my issue this way.

I found the answer for my question.
solution :- (1)
enable developer mode - In your phone, go to Settings, About phone and click on MIUI version 7 times. You’ll see a pop up which says you are a developer now.
Go back to Settings, Additional settings, Developer options and enable USB Debugging.
Connect your phone to your PC/Mac and on the phone authorize your computer
go back to Developer options, scroll down to find Turn on MIUI optimization and disable it. Your phone will be rebooted
solution :- (2)
enable developer mode - In your phone, go to Settings, About phone and click on MIUI version 7 times. You’ll see a pop up which says you are a developer now.
Go back to Settings, Additional settings, Developer options and enable USB Debugging.
Connect your phone to your PC/Mac and on the phone authorize your computer.
go back to Developer options, scroll down to find Install via USB: and just turn on it.

I'm using xiaomi redmi note 4x and after Turning on install via USB, Turning off MIUI optimization is the main objective from developer option to run app via USB! This works for me

I will suggest to check update of adb version. Aslo check the your Run Apps on a Hardware Device
For more information refer this solution ADB connection
Try above solutions. hope it will work

1 adb devices check your device is ok
2 reboot your devices
3 adb install -r F:\skylixwork\CollagePhoto\app\build\outputs\apk\app-debug.apk

Android Studio does not recognize my Xiaomi Redmi Note 3

When I try to "run" app via Android Studios, my Xiaomi Redmi Note 3 doesnt pop up in the list. However, it does show up in my PC file explorer.
Things I've done;
-tried to install both Xiaomi's own usb drivers and Google's usb drivers, with the same result; "No newer drivers are available"
-enabled usb debugging, makes no different
-switching between PTP and MTP mode
Could anyone help me?

=> For Enabling to developer Mode In Redmi Note 3 :
1: Go to Setting.
2: Click to "About phone" option.
3: Press 7 times to "MIUI version" option.
now you will see a Toast message "now you are developer".
=> Now you should install to Mi PC Suite from this .
1: Install the pc suite with connected your redmi.
2: Now go on Permission in setting and click "install via USB".
=>For Enabling USB Debugging :
1: Open Settings > Additional settings > Developer options.
2: Firstly enable to developer options then go below and find USB Debugging and enable it.
3: When your pc suite open then again repeat disable and enable to USB Debugging
For Redmi 4a also follow :
Open Settings > Additional settings > Developer options > Select USB Configuration > MTP.

I am not sure if you are always looking for a solution. However, I had the same problem, and to fix it, just try the following steps (it works for me):
Go to Settings > Additional settings > Developer options
Disable the "Turn on MUI optimization"
Reboot your phone
It should work after rebooting your device.
Good luck

Xiaomi interface has a lot of "locks".
To use your Xiaomi device to test your apps you need to:
enable developer mode:
Settings > About Phone > MIUI version.
Tap the MIUI version message until you receive a message telling you that you are a developer.
enable usb debugging (inside the developer menu).
enable fast-booting (I don't know if this one is necessary).
install the Mi PC Suite.
Use a USB port from behind of your computer.
allow third party's apps on your device.

Go To Settings > Additional Settings > Developer Options
Now Enable these options
USB Debugging
Install Via USB
Select USB Configuration to MIDI

Go to Settings
Go to Additional settings
Go to Developer options
Disable the "Turn on MUI optimization"
Reboot your phone
It will work

I Found this answer on Quora
(Worked like a Charm in my case , tried other methods previously but they didn't work for me)
COMPILATION OF ALL POSSIBLE STEPS.TRUST ME IT WORKS!
I would like to improve this answer. Once you have enabled being a developer
1.Settings->About Phone->MIUI version .Click on it for seven times.
2.Go to Additional settings->Developer Options.Now you will have to enable two options in this.
a.USB debugging
IN developer options,Scroll to the end to find TURN OFF MIUI OPTIMIZATION.And you may need to reboot your phone.(no issues,nothing will happen).
And if it says you have temporary issues, disable Wi-Fi and enable your mobile network.Even then if it does not allow,
3.Settings->under APP SETTINGS section->Permissions.
Click on the top right corner and slide over the option INSTALL VIA USB.
Now don't forget to go back to Settings->Developer Options->Install via USB(enable).
When all these steps are done together, it works perfectly else,
In your android studio,
Go to FILE->SETTINGS->BUILD,EXECUTION,DEVELOPMENT.Under this,uncheck enable instant run.
I've been trying to look for the possible answers for almost a year now on my MI note 4.And it finally worked today.Happy to share.Enjoy.

For Xiaomi Redmi 6, in Developer options do the following:
Enable USB debugging
Enable Install via USB
Disable Turn on MIUI optimization
On Select USB configuration select MIDI (this is what solved the problem for me)
Also, take a look at this question: ADB is not recognizing my Redmi Note device

I bumped into the same issue
Run below on terminal to find your VENDOR ID;
lsusb
This will display information about USB buses in the system and the devices connected to them.Then, find your phones vendor id (it will be probably without any company names) and type,
sudo gedit ~/.android/adb_usb.ini
and your adb_usb.ini file should look like:
# ANDROID 3RD PARTY USB VENDOR ID LIST -- DO NOT EDIT.
# USE 'android update adb' TO GENERATE.
# 1 USB VENDOR ID PER LINE.
# ie 0x2207
0x<!!!Your Vendor ID here!!!>
Disconnected and reconnected device and also needed to run below commands on terminal;
sudo adb kill-server && adb start-server
And the device was detected.

I solved a problem with connection of Xiaomi Redmi 4 Pro (I hope problem is common for Note 3 too) to Android Studio.
I did next steps:
First of all enable Developer Mode. I won't dublicate how to do it, as it was described here many times.
To solve problem with ADB Interface driver, I've installed Mi PC Suite - MiSetup3.2.1.3111_2717 (link to download)
As output from adb devices command still shown me empty list of connected devices, I tried to use original USB cabel which came with my phone instead of some Xiaomi's USB cabel bougth earlier, and it helps! Phone successfully connected to Android Studio and I installed my test apps!
Hope it will help you guys too.

MI Devices developer mode enable option is quite different. Please refer the below screenshots for the detailed understanding.
In the MI Devices developer mode options stays inside the Additional Setting

Just
goto Additional Settings > Developer Option > there at the bottom just turn off MIUI optimization.
Then
Enable:
USB debugging
Install via USB
USB debugging (Security settings)
Worked for me.
cheers

In some rare cases,the problem is windows "Administrative Templates"
My Xiaomi redmi 2 can't connect with Android Studio although I've done Everything That people say above.
But in my Case I found a solution :
put gpedit.msc in windows command
go to "Administrative Templates" -> "System" -> "Removable Storage Access"
Disable:
-Removable Disk: Deny execute access
-Removable Disk: Deny read access
-Removable Disk: Deny write access
-All Removable Storage classes: Deny all access
Plug on your device
Run app

Don't worry dude .....
first turn on USB debugging...
then Turn on Install via USB...
just turn off your MIUI optimization ....
then it'll ask to restart...
restart your mobile and then it should work....
I hope this will help...
and it worked on my MI 3s prime
application installation failed message failed to establish session ....

Settings > About phone > keep tapping ‘ MIUI version ‘ until it says you’re a developer.
Settings > Additional settings > developer options> toggle ‘USB debugging'
Settings > Additional settings > Developer options> toggle ‘Install via USB'
TRY THIS ONE.THIS WILL WORK.

Update your MIUI version to 7.3.5.0 and you should install drivers in your pc.
Driver link

It seems that the ADB interface wasn't updated properly.
Try this: ADB is not recognizing my Android Device
or https://stackoverflow.com/a/31489453/7030003
This worked for me!

"Install via USB" wont work if your Xiaomi phone is running MIUI 8 or above. Looks like when you try to Enable this option, your phone trys to connect to some chinese server and fails.
I got a work around and it worked for me. Idea is to connect to Chinese-Shanghai server through VPN. Try the following:
Install PlexVPN from Playstore and login into it. You will a 24 hr free VPN service.
Select China-Shanghai server and connect.
From developer option in your Xiaomi phone, Enable "Install via USB".
You can then disconnect the VPN and logout from PlexVPN.
Enjoy!!

First, you have to make sure that you have DEVELOPER MODE on. To turn on,
Go to About phone
Tap the MIUI version until it shows the message that "You are now a developer."
When successful, you can now access developer options in Additional settings in the main Settings.
Go to developer options and enable USB debugging mode.
Secondly, to make sure it allows your phone to used via ADB. Download the necessary USB driver.
This can be done via Android Studio by going to SDK Manager --> Tools --> Google USB Drivers --> Install this.
To avoid the "INSTALLATION_CANCELLED_BY_USER" error, do this:
Go to the "Security" application and tap "Options" at top right corner.
Scroll down to "Feature Settings" group, and look for "Permissions"
At there switch off "Install via USB" option, which manages installation of the apps via USB and doesn't allow it.
On Latest Redmi Device,
Settings > Additional Settings > Developer Options > Developer
options: Check the Install via USB option.
Once installed, you will be able to use your Xiaomi device for App Testing.

If nothing works then do these steps:
Turn on USB Debugging in Developer options.
Turn On USB Tethering too.
For USB Debugging go to:
Settings > Additional Settings > Developer Options > USB Debugging
For USB Tethering go to:
Settings > More > USB Tethering
Now it should work. Mine works.
Thankyou.

My Redmi Note 4 had a same issue but after installing HiSuite everything worked fine.

For Redmi 5 Plus : Make sure to also download and install the Mi Pc Suite.

100% your MI phone will be detected by android studio by using following steps
1) first you have to turn on developer mode
2) turn on usb debugging
3) Install MI ADB driver from below link you must to login first before downloading
https://c.mi.com/thread-1625831-1-1.html
4) Your phone will be shown in Android studio...Enjoy

For all the Mac Users
Just follow the instructions in one of the other answers, for example the answer from Bhunnu Baba.
Since Mi PC Suite isn't available for Mac, use an alternative software. I tried SyncMate and it worked like a charm. An important thing is that you also have to install the SyncMate App on your Xiaomi.
PS: I use a Xiaomi Redmi 9t

In my case, I'm using a Redmi 9, and it was not being monitored by USB in my Mac.
Solution: Settings > Developer Options > Standard USB Configuration > Select File Transfer

In a recent Xiaomi update, there are now twice USB-Debugging options available. In both version, USB-Debugging needs to be activated in order to connect successfully with Android Studio.

LG G4 not recognised by Android Studio

I just got the LG G4 phone, turned on developer options mode, tried running an app from Android Studio but it can't recognise my phone. I even tried switching from MTP to PTP but still it's not recognised. I tried a lot of resources out there, still nothing. Please can anyone help?

So i restarted my device, and switched USB options from MTP to PTP. and for some reason it worked. I dont know why. Thanks for answers above, much appreciated

Had the same problem and tried everything mentioned above with no success. What ended up working for me was downloading the LG Android USB device Drivers which can be found here: http://www.mylgphones.com/lg-android-usb-device-drivers
The latest drivers didn't work for me so I downloaded the second latest and voila! It worked! Hope this helps.

None of the answers here worked for me until I turned on USB debugging mode in Developer Options.
For completeness, the steps are:
Go to Settings > About phone > Software info
Tap "Build number" 7 times until it says that you're a developer
Go back to Settings, and tap on the new "Developer options" item (second last in the menu)
Enable "USB debugging"
Plug in your phone
Change from MTP to PTP mode
Allow the computer to access your phone (there should be two messages - one of them should be for the RSA key fingerprint)
And that should do it. Run adb devices and you should see the phone.

switched USB options from MTP to PTP. when you try to switch it will ask to install drivers then clicked on Install ....now you can debug your app on device

Check your phone, it will ask to install driver on PC. Afterwards android studio will see your phone

Here's what I had to do:
Install the LG Mobile Drivers: http://lg.com/us/lgeai/drivers (latest at the time of writing: here)
Disable USB debugging if currently enabled (this was key for me)
Enable USB debugging
Plug into computer
Allow USB debugging when prompted (will show RSA fingerprint, check "always allow").
Trust the computer when prompted (allow access)
Switch to PTP
Install USB driver when prompted
Wait for the driver to finish installing on your PC
adb devices should show your phone now. If you don't get some of the prompts above, try unplugging and re-plugging your device. Also try different USB ports on your machine.

I had same problem. I was checking Developer Options after plugging USB cable, the USB Debugging option was unchecked and grayed out while cable plugged. I unplugged USB cable, checked USB Debugging option and plugged USB cable again, it worked.

I had the same problem with an LGL58VL test handset. Other (non-LG) handsets worked without problem. Installing the Google USB driver didn't help (Windows said "installed driver (LGE Android Net MTP Device) is already up to date".
Here's what worked for me
WINDOWS: Download and install LG driver on Windows:
http://lg.com/us/lgeai/drivers
HANDSET: Enable developer mode:
Settings > Software Info > Tab "Build number" 7 times
HANDSET:
Settings > Developer options >
Enable USB debugging => YES
Select USB Configuration => MTP
WINDOWS:
Plug in handset. "Action" => Nothing
HANDSET: Accept RSA key
WINDOWS: Android Studio > Tools > Connection Assistant >
Verify handset device is listed and available for debugging
ALSO: sometimes, after I enabled other test devices, the "Enable USB Debugging" option for the handset became grayed out.
WORKAROUND (Handset):
Settings > Developer Options >
Turn Developer Options OFF (slider at the top)
Turn Developer Options back ON
I was now able to hold down "USB Debugging" and slide it back to "ON"

You have to activate developer mode for your device.

Try tap "adb devices" in shell window( or command window)
1) if still nothing displayed, it must be not related to studio, please check whether drivers is properly installed or register in system(Different system has different methods).
2) if displayed like "0b63d5xxxxxxxxxx device", it should be studio's problem, check view option or reinstall android studio.

Android Install on Device Failure [INSTALL_CANCELED_BY_USER]

I'm using Android Studio to connect to run app in my Xiaomi Redmi Note 3G device. My device is already found in the Choose Device Dialog, but I keep getting the [INSTALL_CANCELED_BY_USER] error :
Waiting for device.
Target device: xiaomi-hm_note_1w-SSE6Y97PFYQCRK45
Uploading file
local path: C:\Users\Anthony\AndroidStudioProjects\UASProject\app\build\outputs\apk\app-debug.apk
remote path: /data/local/tmp/com.si.UASPROJECT
Installing com.si.UASPROJECT
DEVICE SHELL COMMAND: pm install -r "/data/local/tmp/com.si.UASPROJECT"
pkg: /data/local/tmp/com.si.UASPROJECT
Failure [INSTALL_CANCELED_BY_USER]
I tried looking for solutions online, but there's no mention of Failure [INSTALL_CANCELED_BY_USER] error.

Happens to my Xiaomi phone after updated it to MIUI 8. Took me hours to figure it out!
Check the followings if you're a victim too:
Go to Settings -> Permissions -> Install via USB: Uncheck your App if it's listed.
Go to Settings -> Additional Settings -> Privacy: Check the Unknown Sources option.
Finally go to Settings -> Additional Settings -> Developer options: Check the Install via USB option.
Update (MIUI 8):
Signin in to MI account is required to enable Install via USB option.
Update 2
For some devices (e.g. Redmi) you might need to turn off MIUI Optimization and reboot your phone.
Settings > Additional Settings > Developer Options > MIUI Optimization
P.S. don't update MIUI unless necessary!
May the victims saved

I have same problem before, here is my solution:
Step 1: Go to "Setting" → find "Developer options" in System, and click.
Step 2: TURN ON "Verify apps over USB" in Debbuging section.
Step 3: Try "Run app" in Android Studio again!

Turn off Miui Optimizations on Developer Settings, then Restart the phone.

Step 1 : Turn on Developer Option (Settings > About Phone > Click 7 Times On "MIUI Version").
Step 2 : Connect Your Device via USB to PC
step 3 : Settings > Additional Settings > Developer Options > Turn On USB Debugging.
Step 4 : Also You Should turn On Settings > Additional Settings > Developer Options > install Via USB
Enjoy Coding ... :-)

In my case I turn on "Install via USB" and also make sure "USB Debugging" is on.

if you are at MIUI 8.
Follow the steps
Step 1: Settings > Additional Settings > Privacy: Check the Unknown Sources option.
Step 2: Settings > Additional Settings > Developer Options > Turn On USB Debugging
Step 3: Settings > Additional Settings > Developer Options > install Via USB
Step 4: Settings > Additional Settings > Developer Options > Turn off MIUI Optimization.
Step 5: Restart your Mobile.

I had an error of Session 'app': Error Installing APKs in Redmi 3S 6.0.1 MIUI Global 8.2. After turning OFF Instant Run in Android Studio, the error did not occur again. For this, Go to File Menu->Settings->Build, Execution, Deployment->Instant Run->Check OFF Enable Instant Run.
But I wanted to use Instant Run features, so,
Go to Settings-> Additional settings->Developer options->Turn off MIUI optimization. Restart phone.
Both of the above methods worked. If the error still occurs, check to Turn on USB debugging and Install via USB.

Open Security App pre-installed in MIUI
Then click Optimize. Try to achieve 100% score.
Activate developer's option by clicking multiple times on MIUI version. (Everyone knows how to do this)
Then Disable WiFi and switch on install via USB under Developers option while you are connected through Mobile data and under your Xiaomi account.

"Install via USB" wont work if your Xiaomi phone is running MIUI 8 or above. Looks like when you try to Enable this option, your phone trys to connect to some chinese server and fails.
I got a work around and it worked for me. Idea is to connect to Chinese-Shanghai server through VPN. Try the following:
1.Install PlexVPN from Playstore and login into it. You will a 24 hr free VPN service.
2.Select China-Shanghai server and connect.
3.From developer option in your Xiaomi phone, Enable "Install via USB".
You can then disconnect the VPN and logout from PlexVPN.
Enjoy!!

IF YOU HAVE TRIED EVERYTHING, TRY THESE STEPS ALSO
Step 0: Turn On MIUI Optimization & Restart.
Step 1: Settings > Additional Settings > Privacy: Check the Unknown Sources option.
Step 2: Settings > Additional Settings > Developer Options > Turn On USB Debugging
Step 3: Settings > Additional Settings > Developer Options > install Via USB
Step 4: Settings > Additional Settings > Developer Options > Turn off MIUI Optimization.
Step 5: Restart your Mobile.

Sometimes it happens because the user does not accept the installation in time. You can turn off "Monitor apps installed by USB" to override user confirmation.

Go to Settings-> Additional settings->Developer options->Turn off MIUI optimization
You must Turn on USB debugging and Install via USB
Hope it help

Follow the steps
Go to settings -> Additional Settings -> Developer Options(if not found then tap MIUI version in About phone multiple times) -> Turn off MIUI optimization.
GO to settings -> Mi Account -> Sign out(if signed in)-> developer options->turn on Install via USB(sign in page will open) -> Sign in to your mi Account
It should work,
if still these steps doesn't work for you then reboot your phone after these two steps

All the above instructions should work but if you're using MI Redmi Note 5A or later versions, you'll see that toggling "install via USB" toggles back off.
That's because the new versions somehow requires you to be in China. To fix this, download Windscribe VPN from playstore(it's free to use). Off your wifi and on mobile data. Connect to HongKong.
Go back and toggle "Install via USB". It'll work now. Disconnect the VPN.

Go to "Setting" → find "Developer options" in System
TURN OFF "Verify apps over USB" in Debbuging section.

I too faced similar issue after updating of Redmi to 8.5.7 OS but none of them mentioned above are worked. When I am trying to turn on Install via USB in developer options it is restricting.. So I did like following
Simply I did:
Logout from Redmi account
Relogin again
Turn on Install via USB in developer options
Update: if you still unable to tun on just switch off Wi-Fi and turn on mobile data and try to switch it on.
This solved my issue.

in miui 9 u must have access to the INTERNET to make it work
Step 1 : Turn on Developer Option (Settings > About Phone > Click 7 Times On "MIUI Version").
Step 2 : Connect Your Device via USB to PC
step 3 : Settings > Additional Settings > Developer Options > Turn On USB Debugging.
Step 4 : Also You Should turn On Settings > Additional Settings > Developer Options > install Via USB

for check, sometime just need go to:
Settings
Permissions
Install via USB (turn off your app if exist)
It was my case. Thanks #Jiyeh

You have to in able the install via USB mode, to do that
1.go to Settings=>Aditional setting=>Developer Options=>Install via USB tuggle it on, If you are having trouble tuggeling the option on,
2.You will have to insert a sim in and use a chineese VPN;
You can use a vpn of following setting:
tpye: L2TP/IPSec PSK
server address: vpn959922015.opengw.net
IPSec pre-sared key: vpn
username: vpn
password: vpn
3.And remember to turn on OEM unlocking in the developer options
and then appempt to turn on Install via USB;