So I recently bought a factory unlocked HTC One XL and I've been wanting to install a custom rom. Problem is, the firmware is so old I'm afraid of jumping up too high and bricking my brand new phone. So here's the deal, the android version is 4.0.3, HTC Sense version is 4.0, software build I guess is 1.68, hboot is 1.08.0000. Phone has been rooted and basically all AT&T and HTC software was removed before I thought about installing a ROM, don't know if they're useful or not. I'm an *****, what do?