Recently i start to use flashrom software, moreless in a winbond chip i receive this message, is probably IC could be damage? 

Waiting for your comments.

thanks in advance. 

Erasing and writing flash chip... Erase/write done in 8 min and 26 sec.

Verifying flash... FAILED at 0x00016650! Expected=0x3f, Found=0x3d, failed byte count from 0x00000000-0x007fffff: 0x2

Your flash chip is in an unknown state.