Default X8 shows "no service" after using kuyadroid plz help

hello everybody

I just recently unlocked the bootloader on my X8 successfully and then flashed new kernel and ROM, all went smooth and the rom looks cool but the problem is that it shows "no service" and cannot detect my sim card now so I don't know how to solve this

any help would be much appreciated

Kernel used : E15i_X8i_2.1.1.A.0.6_Baseband_015

Cust ROM : kuyadroid v4.5.4

android ver : 2.3.7

baseband ver : M76XX-TSNCJOLYM-53404015

waiting for your help

thanks