Factory reset resulted in boot loop
I bought a used FreedomPop LG Optimus F3 VM720 on eBay and it was having problems activating, so I did a factory wipe and now it's in a boot loop, though I can get to TWRP with vol+power. I've tried flashing LS720ZV7 but can't get it to start. 2 questons: First, can I get the ZV8 FreedomPop ROM so I can try with that (or newer if there is on). Second, I would like to get it unlocked so I can use it with a newer 4g LTE FreedomPop sim plan. Help? Thanks in advance!