Ever since I flashed a kitkat rom whether its TW or AOSP im having problems. I never had problems with jelly bean.
With Touchwiz I have the issue when rebooting, sometimes I do not get data and when I try to activate data i get a message "insert sim card" after a few reboots or now "hot reboot" i get the data back.
With AOSP which i tried recently, I have a problem when rebooting I cannot type the lockscreen code! I need a lock screen code for exchange emails.
Could it be the boot loader that is causing issues? I tried flashing official roms but does the one file i flash update the boot loader? Im not sure if I have updated it.
Anyone else similar?