Realme X receiving March and April 2021 security patch update

Realme X users in China are now receiving a new software update. It brings the latest security patch released in March and April 2021 along with some optimizations. 


The update can be identified by firmware version RMX1901_11_C.19. It brings optimizations to system performance, the recognition accuracy of SMS numbers, system stability and fixes the network statement popup issue when using the cloud service system return function. 

Realme X users in China might have already received the April 2021 security update. Users can manually check for the latest update by navigating to Settings >> Software updates and then tap on Download and install. We’ve also added a download link for the latest package that requires manual installation.

[Note: We don’t recommend flashing any ROM until you don’t have a decent knowledge about flashing ROM and the issues, it may bring.]


  • Realme X


  • RMX1901_11.C.19

  • China

Download link:


  • System
    • Optimize system performance and improve system stability
    • Optimize the recognition accuracy of SMS numbers in some scenarios
  • Application
    • Fix the problem that the network statement popup disappears when using the cloud service system return function
  • Security
    • Update Android security patch (2021.03&2021.04)


Vicky Kumar
Vicky Kumar
Vicky Kumar is a close follower of tech especially when it comes to smartphone. He is passionate to write about the new updates in technology. When he is not working, you'll find him watching cricket highlights or surfing the web.

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