Radio not working

[elesbb]

Ive posted about this before , but no answers came about and i just thought it was my custom ROM , but upon recieving my replacement i flashed the latest verizon radio and it flashes properly and everything but then after awhile of using the device it goes into a serious lag to the point i cant even use the phone . and when i say lag i mean EVERYTHING . the phone doesnt even work . I was able to flash radios before on other peoples ROM's and it worked perfectly . any chef's wanna help me outt ??