HELP! "Please contact your service provider"

Current CID 1201-0110 FM: R1FA025 flashed, SEUS updated to: unable to check FM using >*<<*
this is my first time trying to debrand the phone for testing,
I just flashed my K850 to another region's firmware after I updated the CID number.
however, i got a configuration error and telling me to contact service provider.
i can't use the phone at all. but i plugged my phone to the usb cable and run SEUS, it allowed me to make an update. everything seems to be working now.

so my question is, if i want to flash my phone again, should i flash to an older firmware and let SEUS to install the lastest one for my phone?:confused:

post the log from setool so that we can help you