- Stock (or custom) rom 4.4.2 works fine. Wifi turns on and connects.
- Stock (or custom) roms 4.4.3 and 4.4.4 hang on "Turning Wifi on..." and stay that way. (The rest seems to work normally).
I have the exact same issue with my Nexus 4, but my Nexus 7 (2012/grouper/nakasi) doesn't have any wifi issues.
Things I tried:
Complete factory resets, factory images flashed (KTU84L/P), flashed Carbon nightly (20140621).
Flashed the radio from and KOT49H factory image (there isn't one in KTU84L or KUT84P), flashed the bootloader(s) from the 4.4.2, 4.4.3 and 4.4.4.
I even tried deleting (or rather renaming) the /data/misc/wifi and /data/misc/dhcp just in case.
Router is not the problem, I already tried resetting it, despite all my other wifi enabled devices having no problems.
Nothing turns on the wifi on my Nexus 7 (flo/razor) or 4 (mako/occam) when on 4.4.3 or 4.4.4...
I am suspecting Google of screwing up, but if that was the case, why don't I see a whole bunch of posts with this problem?
I'm running out of ideas. The weirdest thing is that on 4.4.2 (stock and carbon last 4.4.2 nightly) it works like a charm! And even weirder, it happens on 2 or my 3 different Nexuses.