In addition to new security patches, the update also brings system performance optimizations and improvements to system stability for a better user experience. It can be identified by firmware versions RMX2195PU_11.A.33 and RMX3201_11_A.37 respectively for Realme C20 and C21. This is a minor security patch update, so don’t expect to see some new features or changes to the user interface. Devices:

Realme C20 Realme C21

Firmware versions:

RMX2195PU_11.A.33 (for C20) RMX3201_11_A.37 (for C21)

Changelog:

Security Updated Android Security Patch: April & May, 2021 System Optimized the system performance Improved the system stability

Realme C20 and C21 getting April   May 2021 security patch update - 51