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title: Update
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Because I root my phone, I have to follow some specific steps to update my system correctly.
**Requires a PC**
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## Devices
| Device | Notes |
| ---------------- | ----- |
| Xiaomi Mi 9 Lite | |
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## Acquire LineageOS Update Zip-file
The newest update can either be downloaded through the built-in updater, exported to local storage and copied to the PC, or downloaded directly from [download.lineageos.org ](https://download.lineageos.org )
## Patch Boot image with Magisk
1. Download latest Boot image
2. Patch with Magisk
3. Copy to PC
## Update LineageOS
1. Enable USB Debugging through ADB
2. Run `adb reboot sideload`
3. Update using `adb sideload LINEAGE_UPDATE.zip`
## Reinstall Magisk
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_An alternative is installing [Lygisk ](https://github.com/programminghoch10/Lygisk ), which allows for automatic reinstallation after OTA Upgrades_
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1. Boot to fastboot: `adb reboot bootloader`
2. Run `fastboot flash boot MAGISK_PATCHED.img`
3. Reboot to system `fastboot reboot`
And the update's done!
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## Links
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> [Update LineageOS on pyxis](https://wiki.lineageos.org/devices/pyxis/update#sideloading-from-recovery)
> [Magisk Installation > Patching Images](https://topjohnwu.github.io/Magisk/install.html#patching-images)
