Xiaomi Redmi Note 5 is one of the most popular smartphones in the budget segment, but even it eventually begins to slow down. The reasons can be different from accumulated dust in the speakers to overloaded system memory. In this article, we will discuss all the ways to clean the physical and software parts of the device to return to its former performance.
It is important to understand that Redmi Note 5 (The codename whyred is based on the Qualcomm Snapdragon processor. 636 has everything 3/4 GB of RAM in the basic versions, which means that even a small amount of garbage can seriously affect speed, and we won't recommend "magic" cleaning apps, but instead show you how to do everything manually, safely and efficiently.
This article is suitable for the Redmi Note model 5, And for its modifications: Redmi Note 5 Pro (code whyred with a different processor) and Redmi Note 5A. All instructions are relevant to MIUI 12/14 Android 9/10 (The latest official versions for this device).
1.Physical Cleaning: How to Remove Dust and Dirt Without Risk
Dust and fine debris accumulate in the speakers, the charging connector and under the cover, and if left uncleaned, it can lead to:
- ๐ Sound deterioration (speakers start to wheez or work quieter).
- ๐ Charging problems (phone does not keep contact with cable).
- ๐ฑ Overheating (dust blocks ventilation holes).
For cleaning, you will need:
- ๐งน Soft brush (for example, for makeup) or toothbrush with soft bristles.
- ๐จ A compressed air canister (optional, but very helpful).
- ๐งด Alcohol wipes (70% isopropyl alcohol).
- ๐ Plastic spatula or toothpick (for hard-to-reach places).
Step-by-step:
- Turn off the phone and get it out. SIM-card and memory card (if any).
- Carefully walk the brush along the edges of the case, speakers and the Micro-USB connector (or Type-C, if you have a modification with such a port).
- Use compressed air to blow dust out of the speakers - hold the canister vertically at a distance of 5-7 cm.
- Wipe the screen and body with an alcohol napkin (do not pour the liquid directly onto the phone!).
โ ๏ธ Warning: Never use metal objects (needles, knives) to clean connectors, this can damage the contacts. If the dust is not removed, you should contact the service center.
Turn off the phone and remove the cards
Walk the brush through the speakers and connectors
Use compressed air for hard-to-reach places
Wash the body with an alcohol napkin
Check if there is any debris in the trash can. SIM-map-->
Systemic garbage cleanup: what can be removed without risk
Redmi Note 5 on the MIUI It tends to accumulate unnecessary files: app cache, update residues, duplicate photos:
| Type of garbage | Where to find | How to clean up |
|---|---|---|
| Application cache | Settings โ Annexes โ Select an application โ Warehouse โ Clear the cache | Deletes temporary files without affecting account data. |
| Remains of updates | File manager โ Download folder โ MIUI | You can delete files with the.zip extension (unless you plan to roll back). |
| Duplicate photos | gallery โ Albums. โ Recent | Use the built-in function of Finding duplicates in MIUI Gallery. |
| Logs and dumps | File manager โ folder MIUI โ debug_log | You can delete all files โ this is debugging information for developers. |
What NOT to delete:
- ๐ซ Android folder at the root of the storage (contains application data).
- ๐ซ Files with.db extension in folder MIUI (database).
- ๐ซ Any files in the system folder (root rights required to access).
If you are not sure what can be removed, use the built-in cleaning tool:
- Go to Settings โ About the phone โ Storage.
- Click Clean - the system will find the unnecessary files.
- Select the garbage cleaner and confirm the action.
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If the phone still brakes after cleaning, try turning off the animation of the interface. โ Special facilities โ Remove animations.
3. Cleaning the cache and application data: what will give the maximum speed increase
The most voracious apps on Redmi Note 5 are Facebook, Instagram, MIUI Launcher and Google Play Services. Their cache can take up to 5-7 GB, even if you haven't used social media in a long time:
Method 1: Manual cleaning (without data loss)
- Open Settings โ Applications โ Application Management.
- Sort by size (click on the three dots in the upper right corner).
- Select an app (such as Facebook) and click Storage โ Clear the cache.
Method 2: Complete data reset (delete accounts and settings)
Use this method only if the app is not working properly, for example, if Instagram is constantly crashing:
- In the same menu (Storage) click Clear Data.
- Confirm the action - all settings and logins will be reset.
Critical information: Clearing system application data (e.g, MIUI Home or Google Play Services may cause a launcher to crash or loss of communication with Google servers!
Which apps can be removed completely?
Storage optimization: how to make room without losing important data
The Redmi Note 5 came with 32 or 64GB of storage, and even that might not be enough if you're actively shooting videos or installing games.
Step 1: Transfer files to a memory card
- ๐ Use a microSD card (up to 256GB) for photos, music and documents.
- ๐ต In Google Play Music or Spotify, set up a cache on SD-map.
- ๐ท In camera settings (Camera settings) โ Storage) select Memory Card.
Step 2: Delete heavy files
Open the File Manager โ Categories โ Big files:
- ๐ฅ Video in resolution 4K (Take up to 500 MB in 1 minute).
- ๐ฎ Cash of games, for example, PUBG Mobile or Call of Duty can weigh 2-4 GB).
- ๐ Old archives (.zip,.rar) and APK-file.
Step 3: Using Cloud Storage
Transfer photos to Google Photos (free to 15GB) or Mi Cloud (5GB for Xiaomi accounts). Once downloaded, the originals can be deleted from the phone, leaving only thumbnails.
โ ๏ธ Note: If you delete files from your phone, check that they have successfully uploaded to the cloud. For example, Google Photos should tick โBackup Completedยป.
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The most effective way to free up space is to transfer media files to a memory card or cloud, and then clear the folders. DCIM download.
5. Cleaning up viruses and malware
Thought MIUI It has built-in Security (antivirus from Xiaomi), it does not always detect all threats. If the phone has started to show ads in the status bar or install apps yourself, follow this instruction:
Step 1: Testing for viruses
- Open Security. โ Antivirus and start scanning.
- If threats are found, delete them (but not all โdangerousโ files are really malicious โ check the titles).
Step 2: Manually verifying installed applications
Viruses are often disguised as:
- ๐ฑ ยซOptimizers (Clean Master, DU Speed Booster).
- ๐ฎ ยซThe game is called Free Fire Hack, PUBG Aimbot).
- ๐ฐ Applications for โearningโ (Money Clicker, Bitcoin Miner).
Remove suspicious programs through Settings โ Apps.
Step 3: Reset to factory settings (extreme case)
If the viruses are not removed, do a complete reset:
- Save important data (photos, contacts, SMS).
- Go to Settings โ Additional โ Recovery and Reset โ Resetting.
- Choose to erase all data and confirm.
Once reset, the phone will look like new, but all data will be deleted. If the viruses remain, the problem is the firmware (you need to reflash the device).
6. Optimization of the system: disabling unnecessary functions
Even after cleaning, the Redmi Note 5 can brake due to background activity.
1. Auto-update of applications
Go to Google Play. โ Settings โ Auto Update Apps and Choose Never.
2. Animation and transitions
Turn on Developer Mode (7 times click on Version) MIUI In Settings โ About the phone, then:
- Go to Settings โ Additional โ For developers.
- Find the scale of the window animation, the scale of the transition animation and the duration of the animator.
- Set the value off for all three items.
Background synchronization
Open the Settings. โ Accounts and sync and disable automatic sync for unnecessary accounts (e.g. Mi Account if you are not using the Xiaomi cloud).
4. Battery saving
Enable charge saving mode in Settings โ Battery. This will limit the background activity of applications.
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If your phone is getting too hot, check which apps are consuming the most resources. โ Battery โ Battery usage and look at the graph.
7.When cleaning doesn't help: signs of wear and tear on the phone
If the Redmi Note 5 is still slow after all the manipulations, there may be a hardware problem.
- ๐ Battery discharges in 2-3 hours (even in standby mode) - it's time to change the battery.
- ๐ฑ The phone spontaneously reboots or turns off - there may be problems with the motherboard.
- ๐ฅ The body warms strongly even with minimal load - a replacement of the thermal paste is required.
- ๐ฎ Games and apps crash with an error โ a lack of RAM (3 GB is no longer enough for modern applications).
In such cases, software cleaning won't help -- you need to take the phone to a service center. The average cost of repairs for the Redmi Note 5 in 2026:
| Type of repair | Cost (โฝ) | Note |
|---|---|---|
| Battery replacement | 1 200โ1 800 | Original battery LB41 (4,000 mAh). |
| Replacement of display | 3 500โ5 000 | Includes a touchscreen and glass replacement. |
| Cleaning from dust + replacing thermopaste | 1 500โ2 500 | It is recommended every 2-3 years. |
| Flashing (if the phone is not turned on) | 1 000โ2 000 | Includes installation of the latest version MIUI. |
If repairs cost more than 50% of the cost of a new phone, it makes sense to consider buying a more modern model (like the Redmi Note 12 or the Redmi Note). POCO X5).