Part of Xiaomi guides, 2022 guides.

This is a custom ROM with a two-part install, and the part people trip on is the A/B side of things. The 11T Pro uses A/B slots, so boot and vendor_boot both go to the _ab targets rather than a plain partition name. If you write only one of them, the phone will not boot into recovery at all, and you get a black screen with no obvious clue why.

Get that right and the rest is quick. Sideload the ROM zip, do a factory reset, reboot. It is also easy to undo, which matters — keep a stock package around and you can go back.

What you need

• A custom recovery image for the 11T Pro. OrangeFox is the one linked below, and it works for this.
• The Nusantara ROM zip.
• Platform Tools on the PC so ADB and fastboot are available.
• An unlocked bootloader. No way around this part.
• A backup, because a factory reset is baked into the process.

Step 1 - boot into the bootloader

With the phone on and USB debugging allowed, run:

adb reboot bootloader

If ADB is not talking to the phone, reboot the phone manually into fastboot with the volume and power keys. Then check the PC sees it:

fastboot devices

You need a serial number back. Without it, every command below will sit and do nothing.

Step 2 - flash boot to the _ab slot

fastboot flash boot_ab boot.img

Note the _ab. On a device with A/B slots, the plain boot target is not what you want for this install. This is the single most common mistake with Nusantara, and it fails quietly — the command reports success and the phone still will not start.

Step 3 - flash vendor_boot to the _ab slot

fastboot flash vendor_boot_ab vendor_boot.img

Same idea, second partition. Do not stop after step 2. Both images go on before you leave fastboot, because recovery on this device needs vendor_boot to bring up the display and the ramdisk properly. One without the other gets you a dead screen.

Step 4 - reboot into recovery

fastboot reboot recovery

The recovery should come up. If it does not, and you get a black screen or a loop back to fastboot, go back to steps 2 and 3 and check that both writes went to the _ab targets.

Step 5 - factory reset in recovery

In recovery, choose the wipe data option, which is the factory reset. Do this now, before the sideload, not after. The ROM expects a clean data partition when it first boots, and skipping this is why a lot of people end up hanging on the boot animation.

Step 6 - sideload the ROM zip

In recovery, select apply update from ADB. Then from the PC, with the ROM zip in the same folder you are running commands from:

adb sideload <rom zip>

The recovery screen will show progress, and the command line will show a percentage. When it reaches the end, the phone will report the result. A message about a signature or verification failure is common during sideloads and is usually fine to continue past, but read it before you do.

Step 7 - reboot and wait

Reboot to system and leave it. First boot on a fresh custom ROM takes a few minutes. Do not tap at the screen and do not pull the cable. Once the setup wizard appears you are done.

Where people get stuck

• Flashing only one of boot and vendor_boot. Both are needed, and both to the _ab slots. One alone gets you no recovery.
• Sideloading with the wrong recovery booted. If the sideload fails with no clear reason, check which recovery is actually running. The wrong one will reject the package or die partway.
• Skipping the factory reset. The system then hangs on boot against old data, and it looks like a bad ROM when it is really a missing wipe.
• A stale recovery. A recovery built for an older base can fail on a fresh ROM zip. If in doubt, flash a current recovery image for your device first.

An honest note

This install is fiddly in one specific way: the fastboot part has no room for guessing. Steps 2 and 3 either both happen or the phone does not start, and nothing on the screen tells you which one you missed. Write the commands out before you start rather than reading them off at the keyboard.

The recovery side is friendlier. Once you are sitting in OrangeFox or whatever you installed, sideload is a single command and the wipe is a menu tap.

If you are tired of hand-installing ADB and the fastboot driver every time you do this, the free Rom Flasher tool on GitHub bundles that into a couple of clicks. It is free, and the link is in the downloads list.

Full description from the video

Nusantara ROM on the Xiaomi 11T Pro — the fastboot and sideload flash, plus the recovery you'll want running before any of it.

Nusantara is a custom ROM that lands on the 11T Pro through fastboot plus a recovery sideload, and the part people trip on is the A/B side of things. Boot and vendor_boot both go to the _ab slots, and if you skip one the phone won't even boot into recovery. Get that right and the rest is simple: sideload the ROM zip, factory reset, reboot. Clean, quick, and easy to undo if you keep a stock package around.

🧰 What You Need

• A custom recovery image for the 11T Pro — link below
• The Nusantara ROM zip
• Platform Tools on the PC
• A backup, because a factory reset is part of the process

⌨️ Fastboot, Line by Line

• adb reboot bootloader
• fastboot flash boot_ab boot.img
• fastboot flash vendor_boot_ab vendor_boot.img
• fastboot reboot recovery

📲 Then In Recovery

• Wipe data, which is the factory reset option
• Select apply update from ADB
• From the PC, sideload the ROM zip
• Reboot and let the first boot finish — give it a few minutes

⚠️ Where People Get Stuck

• Flashing only one of boot and vendor_boot. Both are needed.
• Sideloading with the wrong recovery booted, which fails without a clear reason.
• Skipping the factory reset, then wondering why the system hangs on boot.

Common questions

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