I upgraded to ParanoidAndroid and had to use a different apk. I don't know who made this one (i downloaded like 10 from xda and tried about 4 before it started working), but here's the winner:
I searched for hours but could only find reports of people *NOT* getting this to work on the Verizon GS3 (hence the name of the thread).
I tried hacking my stock Nfc.apk using dex2jar & modding the smali files (after looking up the appropriate values to change using decompiled dex2jar classes.dex's nfcservice.java), but after much frustration decided to just go ahead and try the existing versions out there.
By the way, if anyone is looking for how to do this (decompiling/modding/recompiling an apk) with 4.0.4 (and getting the 'bad magic number with smali/baksmali), refer to the comment on May 8th in this thread.
I'm pleased to report that mayhemer's AT&T version (for the SGS-I747) works for us Verizon folks!
You can grab it on his thread here.
I've also uploaded it to my server. Here's a direct link:
I posted this in the Development section because I would really like to encourage devs to work on modding Nfc functionality further. Also, this is a more advanced mod for a system app.
Google Wallet did not throw errors with this .apk (as it did with others), although I have not tested it yet.
NFC reads trigger the nfc tag's function and the alarm/beep, but do not turn on or unlock the screen (while it is off).
Also, I just got a whole bunch of NFC tags in and plan to make some cool products for them... if you have any ideas let me know on my 3D-printing-on-demand-for-xda-samsung-gs3-folks thread.
Note- I am on Bean's Custom Stock R3.1 07/28 (I know, I need to upgrade)
4.0.4, SCH-I535, Baseband I535VRLF2, Kernel 3.0.38imoseyon+, Hardware I535.10
Instructions for apk:
1. Get apk onto your phone
2. Stop NFC (or else your phone will start lagging // freezing after the next step)
3. Copy the apk to /system/app/ with a root explorer and overwrite the existing Nfc.apk (you should make a backup first)
4. Change permissions to match other system apks (rw-r--r--)
5. Reboot & re-enable nfc. Profit. Share your uses.
For zip you should be able to just flash in cwm.