[Nexus 5 General] Gone2Plaid:
Worked - N5 unlocked/rooted - no data lost

Success! Had a nervous moment in the middle, but XDA came through, as usual.

I was already unlocked and rooted, and the notification had shown up that an update was available. It was taunting me, and I had to get 4.4.3 (hoping for some camera stability improvements - issues recently with slowness when it was executing any of its built-in animations). I didn't want to end up with a wiped/factory reset phone, though. Also, Xposed was installed and didn't want to have to start over there, either. I did not uninstall it before proceeding, which didn't appear to cause any issues.

I downloaded the modified image and SuperSU (I had an old version anyway) as instructed.

I put the SuperSU file in the Internal Memory (root) directory of the phone, but I could have just left it in the Downloads folder - important thing is to just know where it is.

I had the hammerhead-ktu84m-MODIFIED.rar file on my computer and used WinZIP to extract it directly into my "C:\Program Files (x86)\Minimal ADB and Fastboot" folder. I then further extracted the image-hammerhead-ktu84m.zip file into that same directory.

I booted into the bootloader, and used jd1639's trick in the OP to hold SHIFT and right click in the open space of that folder to open a CMD window with that directory already primed. (Great tip! I had never heard that before.) I typed "flash-all" as instructed and sat back to watch the magic happen. My results were as follows:

C:\Program Files (x86)\Minimal ADB and Fastboot>flash-all

sending 'bootloader' (2508 KB)...

OKAY [ 0.300s]

writing 'bootloader'...

OKAY [ 0.470s]

finished. total time: 0.770s

rebooting into bootloader...

OKAY [ 0.090s]

finished. total time: 0.090s

sending 'radio' (45409 KB)...

OKAY [ 1.601s]

writing 'radio'...

OKAY [ 3.100s]

finished. total time: 4.721s

rebooting into bootloader...

OKAY [ 0.080s]

finished. total time: 0.080s

archive does not contain 'boot.sig'

archive does not contain 'recovery.img'

archive does not contain 'system.sig'

--------------------------------------------

Bootloader Version...: HHZ11k

Baseband Version.....: M8974A-2.0.50.1.13

Serial Number........: 030e6d5dd0210dfb

--------------------------------------------

checking product...

OKAY [ 0.100s]

checking version-bootloader...

OKAY [ 0.100s]

checking version-baseband...

OKAY [ 0.100s]

sending 'boot' (8700 KB)...

OKAY [ 0.500s]

writing 'boot'...

OKAY [ 0.740s]

erasing 'system'...

OKAY [ 0.680s]

sending 'system' (721400 KB)...

OKAY [ 23.542s]

writing 'system'...

OKAY [ 49.666s]

rebooting...

finished. total time: 75.978s

Press any key to exit...

You can see the "archive does not contain..." errors someone else reported, but it proceeded just fine and completed. My scary moment was that on my first try, after the "sending 'system' ..." line, it threw a failure error at the 11 second mark stating "too many links". My phone was stuck, and I had to force shut it down and then reboot into the bootloader. This took several tries and I was afraid I had bricked my Nexus 5. Then I remembered to unplug the USB cord. After a couple more tries, I was back in bootloader mode. I did a little searching online, and that error can be the result of a breakdown somewhere in the USB connection. I switched USB ports, and that did the trick and produced the results above.

The phone rebooted, and it showed the progress of updating the Apps. Once all the way into the phone, I saw my screens as I had left them - all my data was intact! I opened Titanium and confirmed the loss of root, I shut down and booted into recovery to flash SuperSU. That was successful, which I verified by trying TB again. I then went back into Xposed Framework, hit Update/Install and let it reboot the phone. The phone came right back up, and I immediately saw some of my GravityBox status bar customizations.

Even better was that I tried the camera briefly, and it looked like the animations didn't slow it down anymore! Time will tell, but a good start.

Thanks!!!!!!