Htc one m8 No service after unlock/root

[Danteslayer]

I unlocked and rooted my htc one and found out i had no service so after hours of figuring out and not being able to uninstall the root, i reinstalled 4.4.4 with an RUU file and did everything fine but i still dont have service. When my phone boots up i have service for around a minute then it goes off saying service cant be found. Im very distressed with this please help. It did this aswell with the root, i thought that removing the root would fix this. wifi works tho. please help me