Device: OnePlus 13R 5G (giuliac)
Recommended Recovery: https://sourceforge.net/projects/infinity-x/files/giulia/17/images/recovery.img
fastboot flash recovery recovery.img

Flashing Instructions:

* Clean Flash:
1. Grab boot, init_boot, vendor_boot, and recovery.img (Get from here: https://sourceforge.net/projects/infinity-x/files/giulia/17/images)
2. Reboot to bootloader and flash each image based on their respective names -> fastboot flash boot boot.img, and so on
1. Reboot to recovery
2. Apply update -> adb sideload
3. adb sideload path/to/rom.zip
4. Format data
5. Reboot

* Dirty Flash:
1. Reboot to recovery
2. Apply update -> adb sideload
3. adb sideload rom.zip
4. Reboot

* OTA:
1. Simply upgrade via OTA updater (if pushed or by importing local update)