Need Beer and Mustard
Join Date: Nov 2009
Location: District of Columbia
Device(s): LG G2, Moto G, Galaxy S3, Galaxy Nexus LTE, Nexus 7, HTC Flyer
Thanked 5,365 Times in 3,525 Posts
Haven't touched ROM Manager in forever. I like to do all my flashing within recovery itself whether it's Clockwork (my N7) or TWRP (my GNex, much preferred).
ROM Manager can also be dangerous for certain phones (mostly just Samsungs). You can download RM just to flash CWM recovery and never used it again. Or, you can download goo.manager and flash TWRP which I prefer (can't guarantee the Hero is supported).
From there, simply boot in recovery, make a back up and proceed from there on flashing your ROM.
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