Evolution X for Xiaomi 13 Ultra (ishtar)

An unofficial Evolution X build for the Xiaomi 13 Ultra, maintained by CyberWei922.

Build information

• Device: Xiaomi 13 Ultra (ishtar)
• ROM version: Evolution X 11.12
• Build date: October 21, 2026
• Build ID: 1792575161
• Build type: Unofficial
• Android version: 16
• Kernel version: 5.15.211
• GApps: Included
• Built-in root: None

Downloads

Browse downloads on SourceForge

ROM file:

EvolutionX-16.0-20261021-ishtar-11.12-Unofficial.zip

SHA-256:

4ed2d3ca3a9dc27aae2b7b69000e8eff2a31b61da7e952d089bd140334cd96f9

Verify that the downloaded file matches this checksum before installation.

What works

• SELinux: Enforcing
• Camera
• Speakers
• NFC
• Fast charging
• Fingerprint authentication, including screen-off fingerprint unlock
• Bluetooth
• Automatic brightness
• LTPO refresh-rate switching: 30–120 Hz

Features

• Xiaomi Camera included and set as the default camera app.
• PD, PPS and MiCharge charging protocol support.
• Tuned automatic brightness curve for smoother transitions.
• Bundled TWRP 3.7.1 with working Android 16 data decryption, tested by the maintainer.
• Device configuration for Xiaomi's official 5500 mAh replacement battery; hardware validation is pending.
• Updated SELinux policies, with Enforcing enabled by default.

Changes in the October 21 build

• Fixed an issue that prevented KernelSU module WebUI pages from opening.
• The WebUI fix is included in the ROM; the separate workaround module for the October 20 build is no longer needed.
• The ROM continues to ship without built-in root.

Known issues and testing notes

• Support for the official 5500 mAh replacement battery still needs confirmation from users with that battery installed.
• The October 21 package has passed installation, boot and data-preservation checks on the maintainer's device. Full functional confirmation of this package is still pending; the feature list above reflects maintainer testing of this ROM series.
• Please report reproducible issues in the XDA release thread.

Installation

Requirements

• An unlocked bootloader.
• A backup of your personal data.
• A compatible recovery with ADB sideload support.
• Firmware baseline: China HyperOS OS3.0.307.0.WMACNXM. Compatibility with other firmware versions is not yet confirmed.

This is a full A/B OTA ZIP. GApps are already included; a separate GApps installation is not required.

First installation from HyperOS or another ROM

A clean installation, including formatting user data, is required when switching from HyperOS or another ROM. Formatting user data erases your personal data and internal storage, so back up your files first.

Install the ZIP through a compatible recovery and complete the recovery's Format Data procedure for a clean installation. Installing the ZIP alone does not automatically format user data.

For ADB sideload, enable the sideload option in recovery, then run this command from the folder containing the ROM ZIP:

adb sideload EvolutionX-16.0-20261021-ishtar-11.12-Unofficial.zip

Complete the clean-installation steps before booting Android.

Updating from the October 20 build

An upgrade from build 1792496374 to build 1792575161 has been verified with user data preserved. Back up your data before updating.

If you installed the older ishtar_self_visibility_fix workaround module, disable or remove it before upgrading. This build already includes the fix.

Boot into a compatible recovery and sideload the ZIP using the command above. Formatting user data is not required for this verified upgrade path.

Root is optional and is not included in the ROM ZIP. If you use root, manage it separately using an image compatible with this build.

Support and bug reports

Primary support and bug reports are handled in the XDA release thread.

Optional community chat: EvolutionX-Ishtar-Xiaomi13Ultra on Telegram.

When reporting an issue, include:

• Build version or build ID.
• Previous ROM and firmware version.
• Whether you performed a clean installation or an upgrade.
• Root status and installed modules, if applicable.
• Steps to reproduce the issue.
• Relevant logs, where available.

Upstream source references

These links identify the upstream bases. The linked snapshots do not include all of the maintainer's local modifications and are not the complete corresponding source for this modified build.

• ROM base — Evolution X, branch bka: manifest at e3223fa3a45f65204ba37a1491437aaf3515e2c0.
• Device tree — Xiaomi 13 Ultra: android_device_xiaomi_ishtar at 8605aa5b3749f70b062fae1932db5c5e531a21b1.
• Common device tree — Xiaomi SM8550: android_device_xiaomi_sm8550-common at a27e05da9dea27a593deb11ba49e17dab39018c5.
• Kernel: android_kernel_xiaomi_sm8550 at 34eaaccbb3d71edb8e03eb903d113e0e105b6237.
• Kernel device trees: android_kernel_xiaomi_sm8550-devicetrees at 459e035f746ca8110a72c984b123db8b3f08516e.
• Kernel modules: android_kernel_xiaomi_sm8550-modules at cf984f86bcfc795190429a7c094fe6bbde5f7b02.

Device and kernel upstream branch: lineage-23.2.

Credits

• Evolution X team.
• AOSP and LineageOS contributors.
• ishtar-aosp contributors — upstream device, common and kernel trees.
• Team Win — TWRP.
• Coolapk @mi_block — original TWRP build for the Xiaomi 13 Ultra.
• All other upstream contributors.

Individual components retain their respective licenses and copyright notices. This is an unofficial community build.