Root ADB Device Listed as Offline - Fastboot Device not Found

[megsto]

I recently upgraded my Nexus 4 to Android 4.4 AOSP, its now unrooted and has no custom recovery, due to it being a stock rom.

Anyway. I'm not actually a fan of 4.4 and want to restore my backup of PA 3.99.

But. Here's my issue:
As usual, the drivers are a pain en la derri

 

[BrandonOptimus]

Its the unofficial image of 4.4 you have right?

Not sure if you could downgrade your phone on that toolkit(formats data).

Did you check if the toolkit said 4.4 support?

 

[megsto]

yes, the AOSP, I have Wug's Toolkit.
It supports 4.4, But I'm having trouble with getting my computer to connect.

 

[codesplice]

Have you confirmed that you have the correct Google-provided adb/fastboot drivers? Google USB Driver | Android Developers

I'd try manually removing and reinstalling them; once you can get adb devices and adb shell to work (passing the Fingerprint prompt in the process) you should be able to then get fastboot working reliably.

 

[jhawkkw]

A security update to 4.2 introduced the offline issue with adb. You have to be using adb version .31 or newer and then when performing the command adb devices, give the device permission. If you're getting device not found with fastboot, it means your driver isn't installed correctly or that the device isn't connected to the computer in fastboot mode.