It all started when I flashed the wrong
recovery.img on my device. I have two Vivo Y97s with the exact model, version, and specs. I didn't realize that I need to port TWRP first on my
recovery.img before I can flash it using fastboot. After I flashed the wrong
recovery.img, my device suddenly wouldn't turn on, couldn't boot up, and couldn't even enter recovery mode. BTW, they are both bootloader unlocked and the other one is already rooted.
Let's say A is the bricked phone and B is working fine. Can I use the backup ROM of B and restore it to A? I'm not gonna use stock ROM.