Need alcatel 655a to 655x convert flash files

[ijebel]

I have alcatel 655a need to covert to 655x if anybody have tested flash files please share or this file;
665x-2avrfr1 763 xl76cl11 jrd53_09b_pcb01_gprs_mt6253_s00.maui_09b_w09_52_sp 1_v12_f7
my access to sigma support expired so cant download