: You must flash back to a Global or stable Stock ROM afterward, as ENG firmware is not suitable for daily use—it lacks standard security and most Google services. The Verdict
: Often used when a device loses its serial identity or cellular connectivity. ENG Firmware Xiaomi Redmi Note 9 (merlin) (Engi...
: It can revive a phone that refuses to boot into standard recovery modes. : You must flash back to a Global