How do I install OS1.0.15.0.ULMCNXM on POCO F4?

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 OS1.0.15.0.ULMCNXM 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, OS1.0.15.0.ULMCNXM is the version shown. Check FirmwareMirror regularly for newer versions of POCO F4 firmware.

Download OS1.0.15.0.ULMCNXM for POCO F4

What's New

[System]Fix: Improved system stability and user experience

Android Version

12.0

File Size

5.4 GB

Release Date

Mar 24, 2026

Flash Method

Recovery

Download ROM

Available

Download Now

File Size: 5.4 GB

Mirror Downloads (10)

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

Verification & Details

MD5 Checksum:

945b97531490db7e212a0817bff32422

Package Name:

miui_MUNCH_OS1.0.15.0.ULMCNXM_945b975314_14.0.zip

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