Exclamation [Q] Xperia Go Baseband Version Unknown

I flashed my Xperia go with unlocked bootloder on cynogenmod based roms and its showing Baseband Version Unknown under About Phone
& i am not able to use network services (call,data) and phone automatically shutdowns after bootup (restart loop)
tried 5 to 10 restarts
reflashashed baseband only with flashtool no success

On official .ftf ( .54 hk ( frimware, baseband is showing but network services working on gsm or wcdmapreferd (phone auto restarts!! restart loop)
scans network only on wcdma only mode

Imei is Showing in all cases above

urgently help needed