just found this forum and hope to find help with my problem.
I received an OTA update from Jelly Bean to Kit Kat 4.4.2 three day ago.
I bought the phone in US but use it in Germany.
No problem for over a year with Jelly Bean.
Since the update the mobile data connection is not working.
I reset the phone to factory settings, mobile data is activated, APN is entered.
WiFi works so far, but it seems from time to time it switches off by itself.
I need the mobile connection, otherwise the phone is useless for me.
Is there a possibility to flash it with Jelly Bean, or to get somewhere a Kit Kat version not Verizon based.
If I can't get it to work, it seems I need to get a new phone.
Any help or suggestion is highly appreciated.