Default HELP!!! no mobile data connection on every rom and even back to stock...

HELP this problem happen after i flash the latest 4.4 firmware no more mobile data connection on every rom i flash. and today i try to back to stock also useless. i try to change my sim card to my another htc one it work perfectly fine but on mine is useless.
i try contact telco and set up APN as well reboot everything even factory reset but no luck.
i hope anyone here can help me solve this issue. oh yea on sense base rom i cant even see the icon H on the signal bar but on GPE rom i have the H icon just for sometime and it gone please help T__T
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