I read the manual from orangefox, thanks. Very helpful.
However, it doesn't say how to back up and restore image (system image, vendor image).
Please, tell me, who knows.
Redmi Note 9 Pro JOYEUSE
I recently installed TWRP-3.4.1B-0530-joyeuse-fix.
Then I installed twrp-3.4.0-14-curtana-unified-mauronofrio.img.
After rebooting from twrp to twrp, the red line is displayed in twrp.
See the photo under the spoiler.
Is this a bug or can I ignore it?