AYN Odin 3: backup

I acquired an AYN Odin 3 Ultra in the hopes to run a complete Linux environment on it. This starts my explorations with a full backup of the stock Android storage. I needed: edl-ng iqoo_13.melf from AYN's Discord A udev rule to let users access USB devices After powering the device while pressing volume up and volume down at the same time (display goes black after flashing AYN's logo), I could…