[Xiaomi Poco F1 ROMs, Kernels, Recoveries, & Other ] vasishath:
Introduction

MultiROM is one-of-a-kind multi-boot mod. It can boot any Android ROM. Besides booting from device's internal memory, MultiROM can boot from USB drive connected to the device via OTG cable. The main part of MultiROM is a boot manager, which appears every time your device starts and lets you choose ROM to boot. You can see how it looks on the left image below and in gallery. ROMs are installed and managed via modified TWRP recovery. You can use standard ZIP files to install secondary Android ROMs.​

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Features:​

* Multiboot any number of Android ROMs​

* Restore nandroid backup as secondary ROM​

* Boot from USB drive attached via OTG cable​

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You can also watch a video which shows it in action.​

Warning!

It _is_ dangerous. This whole thing is basically one giant hack - none of these systems are made with multibooting in mind. It is no longer messing with data partition or boot sector, but it is possible that something goes wrong and you will have to flash factory images again. Make backups. Always.​

Installation

Firstly, there are videos on youtube. If you want, just search for "MultiROM installation" on youtube and watch those, big thanks to all who made them. There is also an awesome article on Linux Journal.​

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You can install it from this guide:​

Poco_MultiROM.pdf

drive.google.com

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MultiROM has 2 parts you need to install:​

MultiROM - download the ZIP file from second post and flash it in recovery.

Modified recovery - download the IMG file from second post and use fastboot or Flashify app to flash it.

You current rom will not be erased by the installation.

Download links are in the second post.

Adding ROMs

1. Android​

Go to recovery, select Advanced -> MultiROM -> Add ROM. Select the ROM's zip file and confirm. As for the space, clean installation of stock 4.2 after first boot (with dalvik cache generated and connected to google account) takes 676mb of space.​

Using USB drive

Not tested​

Updating/changing ROMs

1. Primary ROM (Internal)​

Flash ROM's ZIP file as usual, do factory reset if needed (it won't erase secondary ROMs)

Go to Advanced -> MultiROM in recovery and do Inject curr. boot sector.

2. Secondary Android ROMs​

If you want to change the ROM, delete it and add new one. To update ROM, follow these steps:​

Go to Advanced -> MultiROM -> List ROMs and select the ROM you want to update.

Select "Flash ZIP" and flash ROM's ZIP file.

Source code

MultiROM - https://github.com/vasishath/multirom/commits/android-10

* There is currently no way to upgrade a secondary GSI.

* All secondary ROMs reboot to MultiROM menu upon first boot. Just boot the same ROM again it will work.

* Some visual tearing in MultiROM menu.

Please report all your issues here:

https://github.com/vasishath/multirom/issues

Thanks a lot to Tasssadar for creating this awesome utility.

Join Official POCO Telegram group

Group: Here

Channel: Here

XDA:DevDB Information

Multirom, ROM for the Xiaomi Poco F1

Contributors

vasishath, shahan_mik3

Source Code: https://github.com/vasishath/multirom/commits/android-10

ROM OS Version: 9.x Pie

ROM Kernel: Linux 4.x

ROM Firmware Required: Multirom TWRP is required

Version Information

Status: Beta

Current Beta Version: v1

Beta Release Date: 2018-11-18

Created 2018-11-18

Last Updated 2019-07-14