The Redmi 4A (codename: rolex) comes with two main firmware versions:
- China ROM: Designed for the Chinese market, it supports only English and Chinese and does not include Google Services.
- Global / EEA / India ROM: Made for international users, it supports multiple languages, includes Google Services, and removes Chinese apps. It can also be installed on the China version if the bootloader is unlocked.
Additionally, the device has Stable MIUI (for a stable experience) and Developer MIUI (for early access to new features).
For Fastboot ROM versions you can use Mi Flash to flash via EDL and Fastboot modes. Driver for Qualcomm and MTK CPU, Fastboot you can download at this link
- Version: V10.2.3.0.NCCMIXM
- OS: MIUI 10
- Android: 7.1
- Changelog: Expand
- Contacts
- Fix: Contacts couldn't be deleted from SIM cards in some cases
- Version: 9.3.28
- OS: MIUI 10
- Android: 7.1
- Changelog: Expand
- App lock
- Fix: Issues with the App lock password form on some devices
- Lockscreen, status bar, Notification shade
- Fix: Battery indicator didn't disappear when the Notification shade was opened on the Lock screen
- Fix: Issues with displaying notifications on the Lock screen
- Security
- Fix: Virus scan started over after users tapped the results of a completed scan
- Version: V10.2.2.0.MCCCNXM
- OS: MIUI 10
- Android: 6.0
- Changelog: Expand
- Other
- Optimized system performance
- Improved system security and stability
- Version: 9.3.28
- OS: MIUI 10
- Android: 6.0
- Changelog: Expand
- App lock
- Fix: Issues with the App lock password form on some devices
- Lockscreen, status bar, Notification shade
- Fix: Battery indicator didn't disappear when the Notification shade was opened on the Lock screen
- Fix: Issues with displaying notifications on the Lock screen
- Security
- Fix: Virus scan started over after users tapped the results of a completed scan