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For crDroid ROM users, the official recovery is often the only supported method for updating to new crDroid versions without data corruption.

Features a robust "Apply Update via ADB" option, which is the primary method for installing the ROM zip file. Factory Reset/Wipe: crdroid recovery.img

for crDroid didn't start in a corporate office, but as a hobby by developer Cristiano Matos in late 2012. Originally created for the Samsung Galaxy S III For crDroid ROM users, the official recovery is

If you have an OTG USB drive with a ROM on it: For crDroid ROM users

Which of the above do you want? If none, give one short clarifying phrase.

(important — otherwise the stock recovery may overwrite it) fastboot reboot recovery Or use volume keys to select “Recovery mode” from the bootloader menu.