Technician helping troubleshoot Xiaomi phone notifications delayed

Steve H.

Reviewed for technical accuracy

Specialities: Xiaomi notification delays (MIUI settings, app permissions, battery optimization), push notification troubleshooting, Xiaomi system updates and background app restrictions

Xiaomi notifications arriving late, missing alerts, delayed messages — safe checks before changing battery or app settings

Technician avatar Technician
I understand how frustrating delayed notifications can be — missing messages or alerts when you need them. Trust moment: we’re not going to reset your phone or change things you don’t understand. We’ll start with the safest checks first, and you can stop at any point if something feels uncomfortable.

Quick start: are your Xiaomi notifications coming in late for all apps, or just specific ones like messaging, email, or social media?
Customer
Mostly messaging apps — WhatsApp, SMS, and email. Sometimes they arrive 5 or 10 minutes late, sometimes longer. But apps like games work fine.
Technician avatar Technician
That’s helpful — it tells us the phone itself is working, but something is slowing down those specific apps. On Xiaomi phones, that usually points to one of three things: app battery optimization (which can pause background activity), notification permission settings, or MIUI system restrictions.

Before we check anything: did this start recently after an update, or has it been like this since you got the phone?
Customer
It started a few weeks ago. I don’t remember updating anything, but maybe it happened automatically. I have a Xiaomi Redmi Note 12.
Technician avatar Technician
The Redmi Note 12 runs MIUI, which has powerful battery-saving features — but they can sometimes be too aggressive with messaging apps. An automatic update could have triggered a stricter battery profile.

Let me ask a couple of quick safety questions so we narrow this down: 1) Are you noticing the phone’s battery draining faster than usual, or does it seem normal? 2) When you open WhatsApp or email, do the messages suddenly appear all at once, or do they trickle in?
Customer
Battery seems fine, maybe even better. And yes, when I unlock the phone and open WhatsApp, the messages are already there — they just arrived late while the phone was locked or I wasn’t looking.
Technician avatar Technician
That’s a classic sign of battery optimization holding back background notifications. The messages arrive eventually, but the app isn’t waking up immediately to push them to you. Trust moment: I don’t want you turning off all battery-saving features — that can drain your phone. We’ll just adjust the rules for the apps that need real-time alerts.

On MIUI, the most common culprit is the Battery Saver or App Battery Saver setting. Do you remember if you turned on any power-saving mode recently, or does your phone show a battery percentage indicator?
Customer
I don’t think I turned anything on. But I see a battery icon in the top-right corner. The phone usually shows 60–80% battery.
Technician avatar Technician
Good — you’re not in a low-battery mode, so that’s not the issue. The delay is likely coming from MIUI’s background app management, which is separate from power-saving mode. On Xiaomi phones, messaging apps sometimes get restricted even when battery is healthy.

Here’s what’s probably happening: WhatsApp and your email app are in a “restricted” list that limits how often they can check for new messages in the background. The fix is safe and reversible — we just tell MIUI to allow them to run more freely.

Can you go to Settings and look for something like “Battery and device care” or “App Battery Saver”?
Customer
I’m in Settings. I see “Battery and device care” — I’ll tap it.
Technician avatar Technician
Perfect. Inside that menu, look for “App Battery Saver” or “Manage battery usage” — the exact wording can vary depending on your MIUI version. Once you tap that, you should see a list of apps with labels like “Unrestricted,” “Restricted,” or “Optimized.” WhatsApp and your email app might be in the “Restricted” category.

Do you see those options?
Customer
I see “Battery Saver” and it shows a list of apps. WhatsApp says “Restricted” next to it. Email app is there too, also “Restricted.”
Technician avatar Technician
That’s exactly the issue. “Restricted” means MIUI is limiting those apps’ background activity to save battery — even though you have plenty of battery. The fix is simple and safe: tap on WhatsApp, and you should see an option to change it from “Restricted” to “Unrestricted” or “No restrictions.”

Trust moment: changing this will not drain your battery noticeably — messaging apps use very little power when they’re just waiting for notifications. You’re not turning on a power-hungry feature; you’re just letting the app do its job normally.
Customer
I tapped WhatsApp and it says “Restricted.” There’s a button that says “Unrestricted.” Should I tap that?
Technician avatar Technician
Yes, go ahead and tap “Unrestricted.” This tells MIUI to let WhatsApp run in the background without throttling it. Then do the same for your email app — find it in the list and change it to “Unrestricted” as well.

After you’ve done both, you can close Settings and wait a few minutes. The next messages should arrive much faster — ideally within seconds instead of minutes.
Customer
Done. I changed WhatsApp and email to “Unrestricted.” That was easier than I thought. How long until I see the difference?
Technician avatar Technician
You should notice it right away — the next message you receive should come through with a notification sound or vibration almost instantly, instead of arriving silently in the background. If someone sends you a test message in the next few minutes, you’ll see the difference immediately.

If notifications are still slow after this change, there’s one more thing to check: app notification permissions. Sometimes Android or MIUI can disable notification permissions for an app, even if battery settings are fine. But let’s see how this works first.

Quick answer: the accepted fix

Accepted first fix for Xiaomi phone notifications delayed (safe approach): 1) open Settings → Battery and device care → Battery Saver (or “App Battery Saver”), 2) find your messaging and email apps and check if they’re labeled “Restricted”, 3) tap each one and change from “Restricted” to “Unrestricted”, and 4) wait a few minutes for the change to take effect. If delays persist, verify that notification permissions are enabled for those apps in Settings → Apps → Permissions → Notifications. This fix is reversible and does not significantly impact battery life on messaging apps.

Why Xiaomi notifications get delayed (and why it happens suddenly)

Xiaomi phones run MIUI, which includes aggressive battery-optimization features designed to extend battery life. One of these features is App Battery Saver, which restricts background activity for apps you don’t use frequently. When messaging apps like WhatsApp or email are marked as “Restricted,” MIUI limits how often they can check for new messages in the background. This can cause notifications to arrive late — sometimes 5 to 15 minutes after they’re sent. The delay happens because the app isn’t allowed to wake up and check for messages until the next scheduled opportunity. This often starts after a system update or when MIUI automatically optimizes your phone based on usage patterns.

What to check first (safe checks before changing notification settings)

Start by confirming which apps are affected — if it’s only messaging and email but not other apps, that’s a strong sign of battery optimization, not a system-wide problem. Next, check your phone’s battery level; if it’s consistently above 20%, you’re not in a low-battery mode that would explain the delays. Then open Settings → Battery and device care and look for the app restriction list. Many users find their messaging apps are marked “Restricted” without realizing it. This is the safest first check because changing restriction levels is reversible and doesn’t require any technical knowledge. If you’re unsure about any menu option, take a screenshot and pause — there’s no rush to change anything without understanding it first.

Xiaomi notification delays explained — calm, senior-friendly guidance

Focus on battery optimization settings, not your phone’s hardware or internet connection.

If your Xiaomi phone notifications are delayed, the problem is usually not your Wi-Fi or internet connection — it’s MIUI’s battery-saving feature being too strict with messaging apps. The good news is that this is completely reversible and takes just a few taps in Settings. Messaging apps like WhatsApp and email need to run in the background to push notifications to you immediately. When MIUI restricts them, they can only check for new messages at longer intervals, causing the delay. Changing them to “Unrestricted” tells your phone to treat them like normal apps again. This doesn’t drain your battery noticeably because messaging apps are lightweight — they’re not like games or video apps that use lots of power.

Disclaimer: This information is AI-generated and intended for general guidance only. Avoid changing advanced settings you don’t understand, and if you’re uncomfortable with any menu, pause and ask for clarification. For model-specific menus, refer to your Xiaomi’s official documentation.

If the issue continues

Getting Started Is Easy

Ask for help, 24/7

If Xiaomi notifications are delayed, start by checking your battery optimization settings. Most delays come from app restrictions, not hardware problems or internet issues.

Expert will respond in minutes

Most notification delays on Xiaomi phones are caused by MIUI’s App Battery Saver feature restricting messaging apps. The fix is changing one setting and takes less than a minute.

Stop missing important messages

Once you change messaging apps to “Unrestricted” in battery settings, notifications should arrive instantly instead of minutes later. The change is reversible if needed.

FAQ

Why are my Xiaomi notifications delayed only for messaging apps?

MIUI’s App Battery Saver feature restricts background activity for apps it thinks you don’t use frequently. Messaging apps often get restricted because MIUI may not recognize that you need instant notifications from them. Games and social media apps are usually allowed to run freely because MIUI knows they need constant background access. This is why you see delays in WhatsApp and email but not in games.

Will changing apps to “Unrestricted” drain my Xiaomi battery?

No, messaging apps use very little battery power. They’re lightweight — they just listen for incoming messages and send push notifications. Games, video streaming, and maps apps consume far more power. Allowing WhatsApp or email to run normally will not noticeably impact your battery life, especially if your phone’s battery is healthy and you’re not in low-battery mode.

Did a Xiaomi update cause this notification delay problem?

Possibly. Automatic system updates can change MIUI’s optimization profile, sometimes making battery restrictions stricter than before. If the delays started after an update, it’s very likely that MIUI re-optimized your apps and moved messaging apps back to “Restricted.” This is a common reason users suddenly notice notification delays after an update.

What if changing battery settings doesn’t fix the Xiaomi notification delays?

If notifications are still slow after changing apps to “Unrestricted,” the next step is to check notification permissions. Go to Settings → Apps → Permissions → Notifications and make sure WhatsApp and email have notification permission enabled. You can also check if your phone’s internet connection is stable (Wi-Fi or mobile data), as very slow internet can also cause notification delays. If neither works, contact your device manufacturer or a technician for further diagnosis.

Sources

Filed under: Mobile Notifications

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