Why I have Android ADB offline status when connect Android device with USB debugging mode? It can detect my Android 4.2.2 Jelly Bean device but have offline status. Fear no more, there is a solution to fix this issue. Just update Android SDK Development Environment (Android SDK Tools and Android SDK Platform-tools) with Android SDK Manager to the latest version. That’s should fix it. And don’t forget to allow USB debugging access from your computer then.

Android SDK Manager
Install Nexus 4 ADB and Fastboot drivers on PC (Windows XP, Vista, 7 or
is so easy with the help of Google Nexus 4 ToolKit. With a few clicks here and there by following the on-screen instructions, Nexus 4 ADB and Fastboot drivers will be installed automatically after connect Nexus 4 to PC.
Prerequisites
Download Google Nexus 4 ToolKit and install it. Then you are ready to install Nexus 4 drivers.

Install Nexus 4 drivers on PC
Why enable Google Nexus 4 USB debugging mode? Nexus 4 talks with PC though adb (Android Debug Bridge) in that mode. You can do lot of useful stuffs like unlock, root, backup, restore, install custom ROM and recovery with USB debugging mode turned on. Yes, you don’t need to be a developer or power user to use these functions. A normal user with proper guide will do. Of course, only perform those tasks that you know.

LG Nexus 4 USB debugging mode
Who want Google Nexus 4 USB driver for Windows XP, Vista, 7 and 8 (32 bits and 64 bits)? Well, you can get it the long way from Android SDK Development Environment ~ Google USB Driver package. Or just download Nexus 4 USB driver only. It is all depend what you need to use it for. ADB (Android Debug Bridge) should be working between Nexus 4 and PC after installed.

LG Nexus 4 USB driver for Windows
17 Aug
Posted by Jayce Ooi as How to
How to install Google Nexus 7 adb & fastboot drivers on Windows XP / Vista / 7? It is very simple because there is Google Nexus 7 ToolKit to help. Just follow the on-screen instructions from Google Nexus 7 ToolKit to install adb & fastboot drivers on PC. It will help to install these drivers automatically.
Prerequisites
Do make sure that you have Google Nexus 7 ToolKit installed. Then you are ready to install Nexus 7 USB driver.

Install Nexus 7 adb & fastboot drivers on Windows XP / Vista / 7