[G4 Q&A, Help & Troubleshooting] Blahages:
Hi, I was hoping someone could explain something for me. I'm looking through the forums and seeing the threads for roms and kernels specifically for H815 and H811, usually separate. I'm from the US, considering the G4 on T-Mobile. As I understand it, both can have the bootloaders unlocked (H811 comes unlocked, and the H815 can be unlocked).

I know the H815 has had Marshmallow released, and the H811 has not yet.

What I'm wondering and what I can't find a straight answer to is why, for example, when I look at CM downloads, I can find a v13 for H815 but only a v12.x for H811. The best answer I could find is something about there not being a released bootloader or modem for the H811 compatible with that. I don't know if that was accurate or not, but if it is that confuses me because I've had a Galaxy SIII whose last carrier Android release was 4.4.2, yet is still getting CM 13 releases pretty quickly and other AOSP updates from developers. Is the reason the H811 isn't just because there isn't enough people or developers using that model, so less are working on an updated kernel compatibile with it? I've never had to update my modem or bootloader for an update between Android versions, so I'm assuming that answer was wrong unless there's something I'm missing? I don't think there's a real hardware difference between the two models besides the modems/bands supported, right?

I'm trying to figure out my best option here, have had a Samsung Galaxy SIII since Aug. 2012, bootloader unlocked not too long after, and have really liked it until recently when I was having a slight issue with streaming audio over my mobile network and decided to switch back to stock for a short time to see if it fixed it and compare some settings, stupidly not realizing that in the 3 years I had been away from the stock firmware that Verizon had locked down the firmware again to 4.4.2 and nobody has figured out how to get around it.

I'm looking for a phone that I can install AOSP or CM or similar Roms on (Although I'm not against playing around with the LG Stock Android, it doesn't look that bad, but I want the choice) and am really hoping user removable battery and MicroSD slot. It's not a major must, but I would also like a fairly good camera.

Sounds like my best bet is either the Nexus devices or the LG G3 or the G4 H811. These all either have unlocked boot loaders or ones that are easy to more or less unlock, which I know is something I'll want if I don't want to be stuck on the version of Android the manufacturer supports. I can't stand the size the Nexus 6 or 6P is, haven't had a chance to see the 5X, but it's lacking the removable battery and memory card. I'm currently on Verizon, and would prefer to stay there, but am considering T-Mobile as a potential possibility. If I go with a G3 I'll stay with Verizon, if I go with a G4 I'll have to switch to T-Mobile.

I've seen the G3 and G4 in person, I like both, but prefer the G4 just based on the color temp of the screen, the camera, and battery charging (The G3's in Verizon's store were all low on battery because the charger couldn't keep up, but the G4 was fine I'm assuming because of the quick charging). But, it's looking like the G3 is currently better in terms of development support than the G4. My worry is in a year or so I may be stuck on a version of Android, whereas with my GS3 (Up until it got re-locked) it was still being actively updated. I can get the G3 online for ~200$ versus ~$400 for the G4, and the rest of the specs on the phone aren't different enough for me to care that much about seeing as my GSIII was handing all my requirements until recently.

Wasn't sure if this was the best place to post this, but my only option for the G4 is the T-Mobile H811, and if there is a big reason why that isn't supported (Whether it's because there's not a large enough user base or something else) then perhaps it's best I not consider that device?

It's been a long time since I've done much with porting Android and have been focused on the device I've had for the past 3.5 years, so I might be missing something here. If anyone can clear some of this up for me, it's be appreciated.

Thanks.