The Xiaomi Redmi 9 SIM card can store up to 250 contacts - a limitation that quickly runs out if you actively use the phone. Over time, duplicates, outdated numbers or unnecessary entries take up precious space. SIM-The card not only frees up memory, but also speeds up the search for the right contacts in the phone book.
Unlike the internal memory of the smartphone, where contacts are synchronized with Google Account or Mi Cloud, the data on the device is not available. SIM-This is stored locally and not automatically backed up, which means that if you unwisely remove important numbers, you can lose important numbers forever. SIM-Redmi 9 cards – from standard settings to hidden engineering menu features.
Why are the contacts kept on SIM-map and how to check it out
Xiaomi Redmi 9 offers to save new contacts or to save new contacts SIM-card, or in the memory of the phone / Google account. SIM And it's a habit, especially for people who have switched from button phones:
- 📱 Limited space: maximum of 250 contacts (depending on operator).
- 🔍 No search for name: SIM You can only search by number.
- ☁️ No synchronization: when changing the phone, contacts are not automatically restored.
- ⚡ Slow operation: the phone loads the contact list longer SIM.
Find out how many contacts are stored on your account. SIM-map, open the Contacts app, click on the three dots in the upper right corner and select Contact Management → Imports/Exports → Exports with SIM-The system will show the total number of records. If there are more than 200, it's time to clean up!
⚠️ Note: Some contacts may be duplicated, for example if you have saved one number and SIM, Before cleaning, check duplicates through Contacts. → Three points. → Combining and correcting.
Method 1: Remove contacts through the standard Xiaomi menu
The easiest method is to use built-in MIUI tools, which is suitable if you need to delete individual numbers or small groups of contacts.
Instructions:
- Open the Contacts app (a icon with a person's silhouette).
- Click on three horizontal lines in the upper left corner and select SIM-map.
- Slip on the contact you want to remove and hold your finger for 2 seconds.
- Check the boxes next to the unnecessary numbers or click Select All.
- Click on the basket icon in the upper right corner and confirm removal.
This is a very convenient method for selective cleaning, but if there are hundreds of contacts, it will take a long time to do this, and if you want to remove them, you'll want to use the following method.
Make a backup copy of contacts|Check duplicates in Google Contacts|Write down important numbers on paper|Make sure that SIM-card not blocked PIN-code-->
Method 2: Mass removal through import/export
If you need to remove all contact with SIM-This method is faster than manual removal, but requires caution - after cleaning, it will be impossible to restore the numbers.
Step-by-step:
- Start Contacts → Three Points → Contact Management → Import / Export.
- Select Export with SIM-Maps and wait for the contact count.
- Click Remove All (Option will appear after export).
- Confirm the action in the pop-up window.
| Action. | The result | Implementation time |
|---|---|---|
| Removal of 1 contact manually | Cleared 1 entry | 5-10 seconds |
| Mass removal through export | Cleansed up. SIM-map | 1-2 minutes |
| Use of the engineering menu | Complete SIM data reset | 3-5 minutes |
| SIM Toolkit application | Selective or complete cleaning | Depends on the number of contacts |
⚠️ Warning: If contacts are still displayed in the phone book after a mass deletion, check your sync settings. They may be duplicated in Google Contacts or Mi Accounts. To hide them, go to Contacts. → Three points. → Settings → Show contacts and uncheck the boxes from unnecessary sources.
Once a month|Six months|Only when the place ends.|Never cleaned.-->
Method 3: Cleaning through an engineering menu (for power users)
Xiaomi’s Engineering Menu Allows You to Manage Hidden Phone Settings, Including Data Resetting SIM-This method is suitable if the standard methods have not worked or you need to delete the service information from the SIM (for example, old SMS-operator settings).
How to open the engineering menu:
- Launch the Phone app.
- Enter ##4636## or #36446337## (for newer versions of MIUI).
- Go to the section Information about SIM-map.
- Choose yours. SIM-card (if two of them).
- Click SIM Data Reset or Clear Contacts (the name may vary).
After resetting, the phone will restart, and all contacts with SIM-And the cards will be deleted. This is also a useful method if you want to SIM-The card is glitchy (for example, no operator is identified or networks are lost).
What to do if the engineering menu is not opened?
Method 4: Using the SIM Toolkit application
Many operators (for example, MTS, Beeline, Tele2) set on SIM-service-card SIM Toolkit: It allows you to manage balance, tariffs and, in some cases, contacts.
How to clear contacts through SIM Toolkit:
- Find the SIM Toolkit icon on the home screen or in the application menu (usually blue or green with the operator logo).
- Select the phone book or contact section.
- Press Contact Management. → Delete everything.
- Confirm the action by entering PIN-code SIM-cards (if required).
There is a limitation to this method: not all operators provide the removal function via the SIM Toolkit. If the option is not available, use the other methods in this article.
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Before cleaning. SIM-check through any application whether important services (for example, Sberbank Online or Public Services) are tied to numbers. SMS switching.
Method 5: Reset the phone to factory settings (last resort)
If none of these methods worked, or you want to clean your phone completely (for example, before selling), do a hard reset. SIM-map, applications and files.
How to Reset Xiaomi Redmi 9:
- Go to Settings → About the phone → Reset settings.
- Choose to erase all data (hard reset).
- Enter. PIN-code or pattern lock if the system requests.
- Confirm the reset by clicking Delete Everything.
After the reboot, the phone will be as new as the new one. SIM-The card will also be cleared of contacts, but will remain functional (unless it has been damaged).
⚠️ Warning: Hard reset deletes all data without recovery, including photos, messages and installed apps.Be sure to back up through Settings before resetting → Additionally. → Backup and reset or manually copy files to your computer.
💡
Resetting to factory settings is the only way to guarantee that you will delete all data from your phone, including hidden files and cache. Use it only as a last resort!
Frequent Mistakes and How to Avoid Them
When cleaning SIM-And these are the most common mistakes and solutions that people have to deal with:
- 🔒 SIM-card blocked PIN-code: If you forgot PIN, Contact the operator or use it. PUK-code (indicated on the plastic holder) SIM). Enter it in the unlock menu.
- 📵 Contacts are not deleted: Check if sync with Google is enabled. Turn it off in Settings → Accounts. → Google → Synchronization of contacts.
- 🔄 Once deleted, the contacts return: This means they are duplicated in another source (e.g. Mi Cloud.
- ⚠️ The phone can't see. SIM-card after cleaning: Reboot the device or remove/paste SIM If you have a problem, go to the service center.
If none of these methods worked, the problem may be the problem. SIM-Try inserting it into another phone and repeat cleaning. If you can't do it, replace it. SIM Operator (usually free of charge).