Sent from my HTC6500LVW using Tapatalk
OK, here's where I'm at.
1) I successfully installed both the 3.11.605.1 ROM and recovery. Booted up the OS, requested a factory restore, the phone rebooted and did that green icon screen indicating that the recovery was doing its thing. (BTW Santos, could never get power + volume up to do anything, not that I tried too hard once I got the factory restore to work through the OS.)
2) Based on Santos's confidence, I didn't bother flashing ViperOne 4.1.0, and went straight to clean flashing 4.2.1. I let it boot up, did the setup, went back to recovery and dirty flashed 4.3.0.
The results: 4G LTE still drops. It seems to hang on better, but it definitely drops back to 3G regardless of what settings I choose. Interestingly, when I changed the preferred network from Global to CDMA/LTE, sometimes it would tell me that there's no network, would I like to switch to Global. When I went back to the preferred network setting, somehow thge setting was changed to GSM. I also noticed something similar if I went into the Misc Phone info setting under Venom Tweaks and tried to force CDMA/LTE only without EvDo.
SO... Now I'm back to square one, determined to figure out the root cause. I'm back to 3.11.605.1, and I'm going to stick with it for around 24 hours to see if it drops to 3G before I proceed to follow AznInertia's instructions and clean flash 4.1.0. At least then I'll know if it drops, it's not the ROM, but its been about an hour and no drop so far. *sigh* Thanks again for your patience and assistance.
Update: An hour and a half later, still connected to 4G. Although, I've been at my home the entire night. The true test will be when I drive to and from work tomorrow.
Update 2: I don't know when it happened exactly, but I dropped to 3G on stock! I'm actually excited because maybe it's just my sim card after all! Hopefully I can just replace it, reinstall ViperOne and put this whole issue to bed!