Realme has started rolling out October 2021 Security patch for Realme Narzo 20 Devices with as always optimization is system and stability.
Realme Narzo 20 was released on 28th September 2020 with Android 10 out-of-the-box.
Realme launched Narzo series phones to meet customer demand for low-cost phones with powerful processors even if there's a compromise in areas such as camera quality and mostly targeted for Online customers.

Source>>Realme Community
| Android OS | Update | Release Date/Status | Estimated Months |
| Android 10 | Out-of-the-box | September 2020 | Nil |
| Android 11 | First OS update | March 2021 | 6 months |
| Android 12 | Second/Last OS update | Eligible | Unconfirmed |
Check your device >>>> Android 12 update list for Realme devices
The Realme Narzo 20 was released with an Android 10. Therefore, the Android 11 was its first major OS update.
Also, it is eligible for the upcoming Android 12 update and it will be its second/last major OS update.
More -->> Realme Narzo 20 Update Tracker
The Realme Narzo 20 Software Update with August 2021 Android Security Patch is being rolled out in phases. Hence, it will reach all the users soon.
Once the update is available on your device, you can head over to Settings >> About Phone >> Software Update section to update your Realme device with the latest security/software update.
Once again, this is a phased rollout and will be available to all the users very soon. Kindly be patient and wait for the update on your device. The manual update link will be available on the website → https://www.realme.com/in/support/software-update.
For more Realme Android updates please download our Android App – Available on the Play Store