How do I install V9.1.2.0.NAJCNEI on MI 4S China?

Download the ROM file, verify the MD5 checksum, unlock your bootloader, and use Mi Unlock Tool or Fastboot to flash the firmware. Ensure your device is fully charged before proceeding.

Is V9.1.2.0.NAJCNEI stable for daily use?

This is an official firmware release. All official releases from FirmwareMirror are stable and tested. Always backup your data before flashing any firmware.

What should I do before flashing this firmware?

1. Backup all your data, 2. Charge your device to at least 80%, 3. Verify the MD5 checksum, 4. Download from FirmwareMirror, 5. Follow official flashing instructions carefully.

Is this firmware the latest version?

Yes, V9.1.2.0.NAJCNEI is the version shown. Check FirmwareMirror regularly for newer versions of MI 4S China firmware.

Download V9.1.2.0.NAJCNEI for MI 4S China

What's New

[Other]Optimized system performanceFixed bugs

Android Version

12.0

File Size

1.3 GB

Release Date

Nov 27, 2017

Flash Method

Fastboot

Download ROM

Available

Download Now

File Size: 1.3 GB

Mirror Downloads (10)

Mirror 1 Mirror 2 Mirror 3 Mirror 4 Mirror 5 Mirror 6 Mirror 7 Mirror 8 Mirror 9 Mirror 10

10 mirror(s) available • Click any button to download

Verification & Details

MD5 Checksum:

64f800042a30ff4194b7bacf0479fff4

Package Name:

aqua_images_V9.1.2.0.NAJCNEI_20171127.0000.00_7.0_cn_64f800042a.tgz

Back to MI 4S China

Cookie Policy: This website uses cookies to improve user experience. By continuing to use the site, you consent to the use of cookies.