Originally Posted by maheshpatel
I know SuperCID allows you to flash any Custom ROM made for HTC One M8 regardless of any carrier (verizon/sprint/International etc) but I wanna know would it brick the phone sometimes? or it rarely happens? Like suppose me have international version with SuperCID (1111111) and flash Verizon ROM
Don't do it. If you are on international, don't use ROMs for Verizon or Sprint. There is a reason they have separate versions. They won't be compatible.
You may be able to change your MID and run the Verizon RUU to convert it to a Verizon model, but I can't say for sure.
EDIT: Without some serious hacking, you won't be able to convert.