If you want to use this rom from stock Oreo, other than unlocking, you have to do a clean install of stock nougat first. Just use the latest version from here that have the aroma installer - they are the safest and will preserve your IMEI:@NZedPred thanks a lot for updates ...!!! i have sent u a DM can you please check
i have re-locked my bootloader and currently on stock 8.1 what are chances of working finger print if i use this ROM ?? because previously when i tried 7.1.2 ( twrp latest and was using PE 8.1 and 9 ) but finger print didnt worked at all
Need your advise ? plz
https://forum.xda-developers.com/g5-plus/development/twrp-flashable-stock-builds-t3813351
Install and boot once to make sure everything is working, then do a clean flash of this rom.