Originally Posted by jbm76
awesome, I had it work once or twice without the modem file but I just got a signal and it didn't work... Did you test it out?
My evidence is here. Pls have a look on the picture below.
What I did was ...
->Flashed StockyRom over xKat 5.0 (Data connection failed)
-> Flashed original firmware P605XXUCNJ2_P605XSACNJ1_P605XXUCNJ2_HOME.tar.md5 from Samsung Mobile Firmware archive
but failed in the end of the process.
-> flashed TWRP Recovery 220.127.116.11 and flashed xKat 6.0 (working awesome)
-> reflashed StockyRom over xKat 6.0 after Full Factory Reset
NOW StockyRom working near perfect!
As you see the picture, data connection is working all the time even after many rebooting.
WiFi, GPS all working excellent from testing.
You will now understand why my device baseband version is P605XXUCNJ2.
Good Luck, and I'm not responsible for any damage or brick.
Please do so at your risk.
I guess it could be much easier to flash new modem file, which was modified by jbm76.
(I haven't tested it yet because I didn't need it.)
Now I'm trying to upgrade the baseband to P605XXUCNK1.
Let's see whether or not this would do any better.