Recover a Bricked Device Using Fastboot

It’s an inevitable part of the Android hacking process that you will ‘soft brick’ your device
from time to time. Normally these are pretty trivial problems, the device gets stuck in a boot
loop for example. And normally you can fix them by wiping your data and cache and then
refl ashing your ROM, or just by restoring your Nandroid backup.
But sometimes the problem can be harder to diagnose.