The latest update carries firmware versions RMX2193_11.A.29 and RMX2161_11_A.89 respectively for Realme Narzo 20 and Narzo 20 Pro. Security patch updates are important for devices because it fixes different kinds of exploits that increases system security. So, always keep your smartphone updated with the latest security patch available for them. The update should reach your Narzo 20 or Narzo 20 Pro with a pop-up notification. If you have not received it yet, then manually check for the update by heading to Settings » Software updates.  Devices:

Realme Narzo 20 Realme Narzo 20 Pro

Firmware versions:

RMX2193_11.A.29 (For Narzo 20) RMX2161_11_A.89 (For Narzo 20 Pro)

Changelog: [Realme Narzo 20]

Security Updated Android security patch: March & April 2021 System Fixed some known issues and improved system stability

[Realme Narzo 20 Pro]

Security Updated Android security patch: March & April 2021 System Optimized system performance and improved system stability

[source 1, 2]

Realme Narzo 20 and Narzo 20 Pro get March and April 2021 security patch update - 92