How to check memory SIM-Xiaomi maps: detailed guide

Introduction: Why it is important to monitor memory SIM-map

Modern Xiaomi smartphones (including the line of Redmi, Poco and Mi) are actively used SIM-Not only for calling, but also for storing contacts, messages, mobile Internet settings. SIM-The card is limited — usually only 32 to 256 KB, which is a hundred times smaller than the phone's internal drive. When that space ends, users face errors in saving new contacts, inability to get access to the device. SMS or even a mobile network failure.

The problem is compounded by the fact that MIUI It does not always signal memory overflow. SIM. Instead, indirect signs may appear: a slow phone book, the disappearance of old messages, or the inability to edit settings. APN. In this article, we will discuss all available methods of memory verification. SIM-Maps on Xiaomi devices, including hidden engineering mode menus and third-party apps.

We will pay special attention to models with double SIM-cards (for example, Redmi Note 12 Pro)+ Xiaomi 13T), where the memory management of each card has its own nuances, and you will also learn how to make room for the memory of each card. SIM without loss of important data and which card formats (nano-SIM, eSIM) support advanced storage.

Method 1: Standard MIUI settings

The easiest method is to use the built-in MIUI shell tools. It is suitable for most models, including the Redmi 10, Poco X5 and Xiaomi 12.

1. Open the Contacts app (an icon with a person’s silhouette).
2. Slip along three horizontal lines (menu) in the upper left corner.
3. Select Contact Management → Imports/Exports.
4. In the section Memory SIM-The card will indicate the amount of free and occupied space.

For example, MIUI 14 for Xiaomi 13 Ultra requires you to go to Settings → Applications → Contacts → Storage. If there is no SIM memory item, then your card does not support the storage of contacts (often found in virtual eSIMs).

💡

If there is no SIM memory information in the Contacts menu, try inserting the card into another slot (e.g. SIM2 instead of SIM1) and repeat the check.

Note that standard settings only show total memory, but they don't detail what data is taking up space. This will require alternative methods.

What if the Contacts menu does not display SIM memory?

In rare cases (for example, on custom firmware), the item with information about the SIM may not be available.

• 🔄 Restart your phone – sometimes system services MIUI hanging.
• 📱 Check for updates MIUI In Settings → The phone. → Updating the system.
• 🔧 Reset the settings of the "Contact" application in Settings → Annexes → Contacts → Warehouse → Drop it.

Method 2: Engineering menu (USSD-code)

For advanced users, there is a method of checking through hidden USSD-It works on all Xiaomi models, but it requires caution - incorrect commands can disrupt the network.

Enter the following combinations in the Phone application:

##4636## → "Phone Information" → "Status of SIM- Cards"


*#99# → “SIM Memory Display” (not available on all operators)




#4636## → Alternative path to engineering menu

In the menu that opens, look for the SIM Status or Memory Info section.

• 📊 Total Memory – Total memory of the card.
• 📉 Used Memory – Occupied Space.
• 🔄 Free Space – Free space (critical if less than 10%).

⚠️ Note: Do not change the settings in the engineering menu unless you are sure of their purpose. For example, editing the Band Selection settings can lead to loss of the network.

Method 3: Applications for analysis SIM-map

If the built-in MIUI tools don't provide enough data, use third-party utilities that not only show you the space you're occupied, but also help you clear out unnecessary data.

Top.-3 Proven applications for Xiaomi:

1. SIM Card Manager (Play Market) 📊 Shows detailed statistics on memory. 🔍 Scanning contacts and SMS on SIM. 🚫 Doesn't require root rights.
2. My SIM Tool 📱 Supports double-digits. SIM-map. 🔄 Exporting data to the cloud. ⚠️ Advertising in the free version.

SIM Info

• 📟 Shows. IMSI, ICCID memory.
• 🔒 It works without the internet.
• 📌 Compatible with MIUI 12–14.

Download the utility only from the official store

Check the reviews (ranked above 4.0)

Disable VPN (can block access to SIM)

Close other applications that use contacts-->

⚠️ Attention: Some applications (e.g, SIM Card Reader asks for superuser rights (root) on Xiaomi, this could violate the warranty and lock Mi Account.

For eSIM models (such as the Xiaomi 13 Lite), most apps don’t work — use standard MIUI settings or contact the carrier.

Method 4: Verification via PC (for power users)

If the phone doesn't recognize. SIM-You can connect the device to a computer, or you need to scan deeply, and this method requires that you do this:

• 🖥️ PC Windows/macOS.
• 🔌 Cable USB (Xiaomi-inspired).
• 🛠️ Programme Mi PC suite ADB Tools.
• Tell me you want to check your memory. SIM-map.
• The operator may offer: 🔄 Replace the card with a new one (usually free of charge). 📊 Check memory through their internal system (takes 1-2 minutes). 📥 Report on the SMS (For corporate customers (for example, with tariffs for business), some operators offer advanced diagnostics through a personal account. SIM in the section Management of services. ⚠️ Note: If the operator offers to replace SIM-Check if your contact will be maintained and SMS. 90% of the time, data is erased — export it to your phone's memory in advance. SIM-Find out if the memory is full? Here are 5 working ways to clean: 1. Transfer contacts to the memory of the phone The most reliable method: Open Contacts → Contact management. select Import/Export → Exports with SIM phone-on. Specify your Google or Mi Account for backup. 2. Delete old ones SMS Messages take up the lion's share of memory: 📩 Open the Messages app. 🔍 Put three points on it. → Settings → Cleaning up memory SIM. 🗑️ Select a date range (e.g. posts older than 6 months). 3. Reset settings APN Incorrect settings of access points (APN) Can take up space. Reset them: Settings → SIM-maps and mobile networks → [Choose. SIM] → Access points (APN) → Reset to factory 4.Use of cloud services Move contacts to: 🌐 Google Contacts (Synced automatically). 📱 Mi Cloud (available on all Xiaomis). 5. Replacement SIM-If a card is older than 5 years, its memory may have clogged system debris. Contact the operator for a replacement - new nano-SIMs usually have 128-256 KB instead of 32 KB in the old ones. 💡Regularly (every 3 months) check your memory. SIM, Especially if you are actively using SMS-Banking or saving contacts to a card. Frequent errors and their solutions SIM Xiaomi users are facing typical problems. Let's take a look at the most common: Error Reason Decision Memory SIM filled with an empty card Cache failure MIUI Clear the cache in Settings → Annexes → Contacts → Warehouse → Clear the cache Can not keep contact on SIM Card blocked PUK-Unlock through the operator or enter PUK (marked on the plastic holder SIM) Apps don't see SIM No rights Enable permissions in Settings → Annexes → [Title of the programme] → Rights. → Contacts/SMS After cleaning the memory is not released System files operator Contact the salon for flashing SIM If after all the manipulations the problem remains, check it out: 🔌 Physical condition SIM-cards - clean the contacts with alcohol. 📶 Network quality – data may not be displayed in weak signal areas. 🔄 Updates MIUI — In the old versions there were bugs with reading memory SIM. FAQ: Answers to popular questions: Can I increase memory? SIM-No, physical memory space. SIM-You can't expand the card, but you can: Replace the card with a new one (modern nano-SIMs have up to two different cards). 256 Transfer data to the cloud or phone memory. Use eSIM (virtual) SIM Why Xiaomi doesn’t show the memory of the second one SIM-Is that a limitation? MIUI double-wise SIM. To see the data: Move the maps in places (SIM1 ↔ SIM2). Use it. USSD-code ##4636## and choose the second. SIM Install the Dual app in the engineering menu. SIM Info from Play Market. What happens if memory SIM fill up 100%? Effects of consequences: 🚫 It is impossible to keep new contacts on SIM. ❌ They don't come. SMS (Especially important – from banks, services). 📵 Mobile Internet failures (due to inability to update settings) APN). 🔄 The phone can automatically delete old messages. Solution: urgently vacate space or move data to the cloud. How do you check eSIM memory on Xiaomi? For eSIM (virtual). SIM) Do this: Check with the operator if your tariff supports eSIM memory verification. Use the official operator application (for example, My Beeline or My MegaFon). 13/14 Go to Settings. → SIM-map → [Your eSIM] → Information: ESIMs typically have more memory than physical cards, but not all carriers provide access to this data. SIM-If the contacts were deleted directly from the SIM, It's almost impossible to restore them: 🔍 Check backups in Mi Cloud or Google Contacts. 📱 If your phone has been synced to your Xiaomi account, try to restore data through Settings. → Accounts. → Mi Account → Restore. 💾 Contact the service center – sometimes the data can be extracted using specialized equipment (cost) ~1000-2000 RUB. in the future, set up automatic synchronization of contacts with the cloud!