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Android 10 on a Redmi Note 5 Pro sounds odd until you use it. The phone came with something much older, and here you are running gesture navigation and the newer notification handling on hardware from 2018. That is the appeal. If you want the cleanest software this phone can run, STAG OS is one of the builds people keep coming back to.

The MIUI skin is gone. There is no account nagging, no folder of preinstalled apps, no extra layer between you and the system. On a phone with limited memory, that is not a small thing.

What you need before you start

• An unlocked bootloader on whyred. Unlocking wipes the phone, so do it before you set anything up.
• A custom recovery running on the phone. Get it working properly before anything else.
• The STAG OS zip built for whyred, on an Android 10 base.
• The firmware base the release post recommends. This matters on this device — flash the one it asks for.
• A full backup of internal storage and a battery above 60%.

Step 1 — unlock the bootloader and get recovery working

Nothing else on this list happens before that. Unlock first, accept the wipe, then install a recovery for whyred. Test that recovery boots and can see your internal storage before you move on. If it cannot read storage now, it will not flash a zip later.

Step 2 — take a full backup of system and data

Back up both. System, so you have something to roll back to, and data, so your files and app data survive. Copy the backup off the phone if you can. A backup that lives on the phone you are about to wipe is not a backup.

Step 3 — wipe system, data, cache and Dalvik

Note the extra one here. This flash wipes system too, not just data. With an AOSP build on old hardware, a clean slate is the difference between a phone that settles down and one that misbehaves for days.

Step 4 — flash the STAG OS zip

Flash the zip and wait. Do not interrupt it. If the release post for your build mentions a separate GApps package, decide now whether you want Google services at all — on a phone this old, skipping them leaves more memory free.

Step 5 — wipe cache and Dalvik, then reboot

After the flash, wipe cache and Dalvik and reboot. Then leave the phone alone for the first boot. On this chipset it is not quick. Ten minutes of black screen before the setup wizard appears is within normal range, so don't panic.

What it looks like once it boots

STAG OS stays close to stock Android, which is exactly what a phone this old needs. Extra features cost memory you do not have. So you get:

• A stock-style launcher with a normal app drawer and no skin on top.
• Android 10's gesture navigation, which on a small screen actually helps — you get the navigation bar space back.
• The Android 10 notification handling, including the focus mode and better per-app control.
• A settings app that looks like Android rather than like MIUI.

What the honest bits are

• The camera depends on the build. Always test it before trusting it. Take a few shots in daylight and indoors, check the video recording works, and check that the camera App opens quickly. On whyred, camera stability is the point where builds separate from each other.
• Heavy apps will feel the limits of this hardware. No ROM fixes three gigabytes of RAM and an older chip. Social media apps, browsers with many tabs, anything that keeps a lot in memory — those are the ones that will stutter.
• Firmware base matters. Flash the recommended one if the release post says so. Skipping that step is where the strange bugs come from.

Where people get stuck

• Forgetting to wipe system. Data only is not enough for a base change on this device.
• A recovery that cannot read internal storage. Fix it before flashing, not during.
• Ignoring the firmware note. It looks optional. It is not, and the symptoms show up later as random crashes and a warm phone.

Who should install this

Flash STAG OS if you want the cleanest thing your Redmi Note 5 Pro can run and you accept that it will not become a fast phone. It will become a tidy one. Calls, messages, browsing, music, a few photos — all of that works, and it works without MIUI loading on top of everything.

If you are chasing performance for games, no ROM on this hardware is going to give it to you. If you want the Xiaomi camera processing back, remember what you are giving up.

One practical note before you start. If the bootloader unlock and driver side is what usually stops you, the free Rom Flasher tool on GitHub bundles the ADB and fastboot driver install into a couple of clicks so Windows recognises the phone without a Device Manager hunt. It is free, and the link is in the downloads section.

Full description from the video

STAG OS on the Redmi Note 5 Pro, and it's Android 10 underneath. If you want the cleanest software this phone can run, this is one of the builds people keep coming back to. Here's how the flash goes and what you get.

📱 Device : Redmi Note 5 Pro (whyred)

🧩 ROM : STAG OS

🤖 Android : 10

🎬 In This Clip

• The STAG OS boot and first setup on whyred
• A look at the launcher and the stock Android look
• The bits that actually matter on a daily driver, calls and camera
• Where the ROM leaves you after the first boot

🔍 What Stands Out

Android 10 on an old Redmi is a strange kind of upgrade. You get the newer notification handling and the gesture navigation, on hardware from 2018. STAG OS keeps it close to stock, which is exactly what a phone this old needs, because every extra feature is memory you don't have. There's no MIUI skin loading on top of everything.

⚠️ The Honest Bits

• Camera depends on the build, always test it before trusting it
• Some heavy apps will feel the limits of this hardware, and no ROM fixes that
• Firmware base matters here, flash the recommended one if the post says so

📝 Flash Steps

1. Unlock the bootloader and get a recovery for whyred running.
2. Take a full backup of system and data.
3. Wipe system, data, cache and dalvik.
4. Flash the STAG OS zip, plus GApps only if the post asks for it.
5. Wipe cache and dalvik, reboot, and wait out the first boot.

❓ Common Questions

Q. Is Android 10 too old now? For security patches, sure. For daily use, it still runs fine.

Q. Do I need GApps? Flash it the way the release post describes, don't guess.

Q. Can I go back to MIUI? Yes, with a fastboot flash of the stock ROM.

Common questions

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