Develop Bugs

Miui V7... need some assistance

I have seen a thread about the Miui V6 for LGG3. On Miui website I can download the Miui V7 for my G3. Is there any thread in the G3 forum for the V7? Can't find any...
I have do downgrade to 4.4.2 radio and modem... Where can I find that?
Can I restore a TWRP backup from 4.4.2 Miui to Cloudy 2.5 Lollipop just like that? Or do I have to flash radio and modem from 5.0 after that?
Best regards

Custom Kernel for stock MM rom that supports Wi-Fi calling?

Has anyone developed a custom kernel that supports t-mobile wifi calling?
I am using a D851 on the 30D build.
It may not be possible but it doesn't hurt to ask...
TIA

AT&T M9 3.38 - Anyone running a custom ROM with VoLTE working?

Hi, I have an M9 on AT&T running the latest firmware 3.38. Has anyone successfully flashed a custom ROM on a 3.38 device with VoLTE working? I know some people are running 3.35 ROMs on 3.38 devices using the elementalX kernel, and I'd rather not disable VoLTE if I don't have to.
I'm S-ON running stock 6.0 at the moment.
Thanks in advance.

Marshmallow modem with lollipop rom and lineage OS 14.1

Hi guys, I'm running lollipop stock rom as my primary rom and Lineage OS 14.1 as my secondary rom (I used dual boot patcher to achieve that). The problem is that everything related to sensors (as gyroscope and camera) doesn't work on lineage because (I think) the lollipop modem is outdated and incompatible with this rom. Will flashing just the marshmallow modem.zip fix the problems with lineage? Will lollipop stock rom keep working with the marshmallow modem? Do I need to flash also boot and or bootloader too? Thanks in advance

Please guys, just answer if lollipop stock rom will work with marshmallow stock rom's modem and bootloader.

Help

How to use substram in stock oos 5.0.1 rooted??is it possible?