how to update from RR 7.1 to android 9 pie custom ROM

[shimatta8]

How do I update to android 9 pie from RR 7.1 ROM.

Do I need to update the firmware? And how do I detect my bootloader and firmware version. Thanks

 

[nvertigo67]

How do I update to android 9 pie from RR 7.1 ROM.

Do I need to update the firmware? And how do I detect my bootloader and firmware version. Thanks

https://forum.xda-developers.com/on...elp-thread-t3509641/post81692701#post81692701

BTW: crossposting does not only demonstrate bad manners, but it's also confusing and doesn't help to keep a forum readable.