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Solved ADB device offline

adHow to fix ‘ADB Device is listed as offline’ on android 4.2.2?
NOTE:
New security enhancements in android 4.2.2 builds require the end user to explicitly grant adb access to any connecting computers before that connecting machine can successfully issue any adb commands to your device. When you connect a 4.2.2 android device to your machine (with USB debugging enabled) for the first time, you should be prompted with a confirmation message to allow or disallow USB debugging. This message will display your computers unique RSA key fingerprint and provide you a checkbox to “Always allow from this computer”. Check this box and select ‘OK’. Your device should no longer be listed as ‘offline’:
** TIPS**
Note: dashes " - " in command line CMD PATH MUST BE THE SAME.... of the Andriod SDK Tools .
Note: update ANDRIOD 4.2.2 ( api17 ) SDK MANAGER TOOLS
Run on win7 64 bit os
USB 2 iNFUSE 4G rooted ROM 4.2.2 J.B.
*** try this ***
If you don’t see this prompt then you should try the following:
•With your device connected via usb and the toolkit running, toggle USB debugging off/on in Settings > ‘Developer Options’ and see if the prompt comes up.
•Also try unplugging and re-plugging the usb connection.

[Guide][wlan adb] Use your android device to use adb commands in another one via WiFi

Hello guys,
I'm here with a way to issue adb commands to another android through WIFI network.
Prerequisites:-
1) 2 android (of course)
2) Basic knowledge in android
Steps:-
1)Select the device that you want to receive the commands [Here on will be referred to as "Device"]
2)Turn your WiFi hotspot on on device
3)Select the device that you want to issue commands to [Here on will be referred to as "Host"]
4)Connect the device to the host
5)Go to developer option and turn it on in "Device" and also turn on wireless adb if you are in lollipop.Or alternatively download ROM toolbox and enable wireless adb in there.You will receive a unique ip address with port
6) open terminal emulator in "Host" and type "adb connect IP" In place of IP type the IP address that you got in step 5
7) congrats you are now connected via an WiFi
Click thanks if I helped.?

[FREE][APP] ADB automatic (for rooted phones)

ADB automatic application will connect your android rooted device automatically with ADB on a computer, but you will have to download small java server app (packed to exe or jar). This will allow you to debug apps without even knowing where you put your USB cable .
https://play.google.com/store/apps/details?id=com.adb_automatic

Install Adb Drivers For Any Android Phone On Your Pc! [JUST In 2Mins] [Very Easy]

Do You Like To Flash Custom Stuffs On Your Android phone? Or Are You A Developer? But You Can't Able To Do It Because You're Facing Some Problems with Your Adb & fastboot. All Of This Problems Are Only Because Of One Thing And That is Drivers.
And If you agree With Anyone Of This Situations Then You're At The Right Place Because Today I Am Going To Tell You That How You Can Install The Adb Drivers For Your Specific Android Phone On Your Pc.
Adb drivers are necessary if you want to flash a android device through Fastboot mode or if you're a android developer. Usually Our PC installs the adb drivers automatically for the specific android device but sometimes it can't so you have to install it manually.
This will also help you to solve adb errors like Device is offline, USB debugging Authorize pop-up not showing in android And etc adb errors. Make sure that your USB debugging option in developer mode is enabled on your Android device Because without this you can't use adb.
Steps:-
*So first go http://adbdriver.com to and download the "adb driver installer (Universal)". Then extract it.
*Now connect your Android phone to your PC using USB cable. Then Open the application.
*Now you will see something like Adb interface drive and with a red Cross at left side. Make sure to refresh if driver option is not shown.
*Now Just Click On install To install your device adb drivers. Then it will Install the adb drivers for your specific android phone in just under 2 minutes.
*Then Allow The USB debugging On your Android phone. Then the adb drivers will get successfully installed.
*If still adb can't recognize your device then try to connect your phone in PTP Mode instead of MTP or Charging only modes.
*If still it doesn't work for you then Revoke USB debugging Authorizations in developer mode. So that's how you can install the adb drivers for your Android Phone.
Video Tutorial - https://goo.gl/a6QgtH

Real device connection

I have completely install android studio but it could not establish connection with real device mobile.
It shows me no device.Already,i set developer mode but it not works.
Please help?

On windows: install adb drivers for your device
On Linux: add usb device to udev (you can check connected devices using lsusb command) or run as root (not recommended but you could try if that works, then fix udev)