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This one is not trying to be a stock Pixel clone. That is the whole appeal. While most custom builds chase a cleaner AOSP look, Avium UI 16 leans into features that make a tablet fun to use — the kind of extras you only miss once they are gone.

It is a Gapps build, so Google apps are already in there. No separate package to flash, no order to get wrong on that front. You flash once and you are done.

Under the hood it runs kernel 4.14.356 and it is signed with a private key, built as release-keys. That is a small detail on paper, but a signed release build tends to behave more predictably than a debug build does. It is a good sign someone put real care into the release.

The install goes through the modded TWRP for the Pad 5, so have that image ready before you start. That recovery is not optional here — a stock or generic recovery is where this goes sideways.

What you need

• Unlocked bootloader on the Xiaomi Pad 5
• adb and fastboot, plus the driver, on your PC
• The modded TWRP image for the Pad 5 — link below
• The Avium UI 16 ROM file — link below
• A reliable USB cable and a backup

Step 1 — back up, then connect

Back up anything on the tablet you care about and connect it to your PC. Every step below ends with a wiped tablet, so get your files off first.

Step 2 — boot the modded TWRP recovery

Boot the modded TWRP image for the Pad 5. Type the recovery's filename exactly as it is, in the folder where the image sits. If the tablet drops back to fastboot or to a black screen, the recovery is the wrong one for this device, or the command did not take. Fix it here rather than pushing on.

Step 3 — format data

Format data so you start clean. Do this before the flash, not after. A build landing on top of old data is the most common route to a bootloop on the Pad 5, and there is no fixing it from inside the system once it happens.

Step 4 — flash Avium UI 16

Flash the ROM file in TWRP. Watch the output as it goes — if a line fails, stop and read it rather than flashing again on top. Avium UI 16 already includes Gapps, so you do not need to hang around for a second package.

Step 5 — reboot and let the first boot settle

Reboot to system and let the first boot settle. It takes longer than you would like, which is true of every fresh Android 16 install. Do not pull the cable and do not decide it has failed in the first minute.

Features worth noting

• Flyme-style small windows. Genuinely useful for multitasking on a big display. Floating a second app over the first is a different way to work on a tablet than split-screen alone.
• Lyrics in the status bar. A small thing that turns out to be fun when music is playing.
• Depth-of-field wallpapers. The home screen gets some depth instead of a flat image behind the icons.
• Signed with a private key, built as release-keys. A release-signed build rather than a debug one.
• Gapps already included. No extra package, no ordering to remember.

Where people get stuck

• Formatting data after the flash instead of before. Bootloop, every time. Format first.
• The wrong recovery. Use the modded TWRP for the Pad 5 specifically. Another device's recovery may boot far enough to look harmless and then fail mid-write.
• Impatience on first boot. It is slow. Let it finish.

One honest note

Unofficial builds are unofficial. There is no support line, and the feature set is whatever the builder decided to include — which here is a good thing, but it also means fixes come when someone gets to them. If the Flyme-style extras are what you want, that trade is worth it. If you need a build with a support promise behind it, look elsewhere.

Full description from the video

Avium UI 16 on the Xiaomi Pad 5 — an unofficial Android 16 build that borrows some of the nicer tricks from Flyme.

This one isn't trying to be a stock Pixel clone. It leans into features that make a tablet fun to use: Flyme-style small windows for multitasking, lyrics right in the status bar, and depth-of-field wallpapers that give the home screen some depth. It's a Gapps build, so Google apps are already in there.

Under the hood it runs kernel 4.14.356 and it's signed with a private key, built as release-keys. That's a small detail on paper, but a signed release build tends to behave more predictably than a debug one.

The install goes through the modded TWRP for the Pad 5, so have that image ready before you start. I show the whole process in the video, start to finish.

📱 Device : Xiaomi Pad 5

🧩 ROM : Avium UI 16 (Unofficial · Gapps)

🤖 Android : 16

🧩 Kernel : 4.14.356

👤 Build : Signed with a private key · release-keys

🛠️ What You Need

• Unlocked bootloader on the Xiaomi Pad 5
• adb and fastboot tool plus the driver
• The modded TWRP image for the Pad 5
• The Avium UI 16 ROM file

📝 Steps

1. Back up your data and connect the tablet to your PC.
2. Boot the modded TWRP recovery.
3. Format data so you start clean.
4. Flash the Avium UI 16 ROM file.
5. Reboot to system and let the first boot settle.

🔥 Features Worth Noting

• Flyme-style small windows for multitasking
• Lyrics displayed in the status bar
• Depth-of-field wallpapers
• Signed with a private key, built as release-keys
• Gapps already included

Common questions

More for Xiaomi Pad 5