How to pass LG G4 Marshmallow to CM13 or another custom ROM?

[chrisdlc119]

Hello, has passed a lot of time since my last thread. This time, I'm requesting your help about something that every time I read a related thread turns more complicated.

I just want to know if I can flash CyanogenMod 13 or another custom ROM if I have an LG G4 with official Android Marshmallow V20c (not rooted and with locked bootloader, because I don't know if I can take the risk), because I learned how to root and unlock the bootloader, but for example, CM13 needs a V20a stock ROM and when I flashed that version with LGUP I didn't have signal and com.android.process wasn't working.

I hope you can give me a vision, very easy to understand, because the threads are not very explicit.

Thanks and regards!

 

[Jens1969]

Hello, has passed a lot of time since my last thread. This time, I'm requesting your help about something that every time I read a related thread turns more complicated.

I just want to know if I can flash CyanogenMod 13 or another custom ROM if I have an LG G4 with official Android Marshmallow V20c (not rooted and with locked bootloader, because I don't know if I can take the risk), because I learned how to root and unlock the bootloader, but for example, CM13 needs a V20a stock ROM and when I flashed that version with LGUP I didn't have signal and com.android.process wasn't working.

I hope you can give me a vision, very easy to understand, because the threads are not very explicit.

Thanks and regards!

As simple as possible: no!
With MM and locked BL you can't get root and you can't install any custom Rom.

 

[chrisdlc119]

As simple as possible: no!
With MM and locked BL you can't get root and you can't install any custom Rom.

You don't understand me. I know how to unlock my bootloader and after that root my phone, but I'm not taking the risk because I flashed the V20A stock ROM to install CM13, but I didn't have cellular signal and because that I didn't try to unlock and root my phone.

Maybe this question is more useful: Can I install CM13 when I have a V20C stock ROM and not the V20A one?

Thanks and regards.

 

[adamz667]

You can flash any custom rom if you have unlocked bootloader and custom recovery e.g. TWRP. Without that things you can't flash anything, because custom roms needs unlocked bootloader.

 

[chrisdlc119]

You can flash any custom rom if you have unlocked bootloader and custom recovery e.g. TWRP. Without that things you can't flash anything, because custom roms needs unlocked bootloader.

OK, now I understand that I can flash CM13 over V20C and not necessarily over V20A.

Enviado desde mi LG-H815 mediante Tapatalk

 

[SavageRobot]

You can flash CM13 on any V20... (V10 being LP, V20 MM) as long as you have a MM base you can flash. However, as said above, you MUST unlock bootloader to flash CM, don't try and flash custom ROM without unlocked bootloader. You can unlock bootloader on any version as long as yours is one of the models with the ability.