I didn't mean literally screeching, just wailing and gnashing of teeth and lots of logcat.
Hmm, I've never tried an update using fastboot update.
I'm not sure if it prints out nicely, how it handles things that need to be mounted, etc.
I kind of like doing manual updates from a recovery where I can see what's going on.
If someone has done a fastboot update and liked it, please mention it.
This is the basic procedure for any Android:
https://www.mobileread.com/forums/sh...5&postcount=32
First you need to get to a working recovery with ADB.