Ireb+40x+41+421+rc3zip+extra+quality Fix May 2026

The pattern ireb might be a brand or internal project name. 40x , 41 , 421 could be model numbers, size variants, or revision numbers. rc3zip could indicate a of a compressed archive ( zip ). extra+quality might refer to additional quality enhancements or a premium tier.

: Often refers to a specialized tool used in the iOS jailbreaking community to bypass "Error 1604" and other restore errors by putting a device into a "Pwned DFU" state. ireb+40x+41+421+rc3zip+extra+quality