Yes I want to have root privileges at boot! And directly use the computer and data line flash to skip the step of flashing into twrp
Check your drivers in Windows > Device Manager. Make sure everything's correctly installed.
https://github.com/betaxab/copypartitionsCheck your drivers in Windows > Device Manager. Make sure everything's correctly installed.
Also, try to download the ROM again and make sure you flash that version. Also verify that it's fully downloaded. It should work just fine.
Also, whatever you do, don't lock your bootloader.
Doesn't have to be on the phone (internal) storage. It can be anywhere. If you're using an external storage (SD Card), you can get it from there.
adb sideload /path-to-your-ROM.zip