Xiaomi has started the rollout of April 2020 Security Patch and Redmi Note 9S or 9 Pro is the first smartphone to get it. The new update comes with the version number V11.0.5.0.QJWMIXM and weighs around 2.2 GB. It is based on Android 10. Apart from April 2020 patch, the update doesn’t bring anything significant new but some bugs fixes and optimizations.
Users are getting the update in batches and this is a staged rollout process. After the initial rollout and confirming that no bugs exist in the update, it will be rolled out to the public. You can check the update in the Software Updater app in the About Phone section of Settings.
You can also download the Recovery package as well as the OTA package to upgrade from V11.0.3.0 from this post. Recovery Package can be flashed through either the Software updater app or TWRP. OTA package is only for devices that are running on MIUI V11.0.3.0.
Table of Contents
Download V11.0.5.0.QJWMIXM for Redmi Note 9S/9 Pro
Recovery Package: Download
OTA Package to Upgrade from V11.0.3.0: Download
How to Flash the New Update on Redmi Note 9S/9 Pro
Recovery Version: Using Updater
If you want to Upgrade your MIUI then Use this Method. Make sure to Download the OTA package only, Fastboot ROM will not work with Updater.

Done! You have flashed the update for Redmi Redmi Note 9S/ 9 Pro