How to completely remove SMS from SIM-Xiaomi Redmi cards: instructions for all models

SMS messages to SIM-The map is occupied by precious space, which on modern Xiaomi Redmi is limited to only 250-500 contacts. If you haven’t cleaned the SIM memory for a long time, you may notice that new messages are no longer stored, and old ones are duplicated in the memory of the phone. Unlike messages in the memory of the smartphone, SMS on SIM They are deleted according to different rules, and not all users know how to do it correctly.

In this article, we will discuss 5 working methods of cleaning the SMS SIM-Xiaomi Redmi cards (relevant for Redmi Note models) 10/11/12/13, Redmi A1/A2, POCO X3/X4/X5 and others on the base MIUI 12–14). You will learn how to delete messages through the standard Messages app, the engineering menu, and what to do if you want to do so. SIM-The card is locked or the phone can't see the message. MIUI, Which Remote SMS Can Recover After Rebooting – and How to Fix It.

Why texting? SIM-The card is not removed in the standard way?

Many Xiaomi Redmi users are faced with a situation where when trying to delete SMS via the Messages app, only copies from the phone’s memory are erased, and the originals on the SIM remain.

• 📱 SMS in phone memory – stored in Android database and deleted instantly.
• 📶 Texting. SIM-card – recorded in a protected area of SIM memory, and to remove them requires direct access through AT-teams or specialized tools.

In addition, some MIUI firmware (especially Redmi 9A/9C and Redmi Note 8/9) has a bug: after deleting SMS via the standard menu, they can recover after rebooting or retrieving SIM.

⚠️ Note: If you use two-sim Xiaomi Redmi, delete SMS from one SIM Check which SIM is active in the Mobile Network settings (Settings) → SIM-maps and mobile networks).

Method 1: Remove SMS via the standard Messages app

The easiest method is to use the built-in Messages app (or Messages on global firmware), but it doesn't work on all versions of MIUI.

1. Open the Messages app.
2. Press three points (⋮) in the upper right corner and select Settings.
3. Go to the Supplementary → Delete messages from SIM-maps (on some models the path may be different: Settings) → Message repository → SIM-map).
4. Select unnecessary SMS or click Select All, then confirm the removal.

If the item deletes messages from SIM-No map - your version MIUI It doesn't support this functionality.

Backup of important messages

Check the balance SIM-cards (at some tariffs, deleting SMS is paid for)

Disable autosynchronization of messages in Google (Settings → Accounts → Google → Sync)

Close all background applications (especially messengers)

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Method 2: Use the engineering menu (code ##4636##)

Engineering menu Xiaomi Redmi allows you to send AT-direct-to-command SIM-This method works on most models, but requires caution.

Instructions:

1. Open the Phone app and enter the combination: ##4636##.
2. In the menu that opens, select Phone Information (or Phone Information).
3. Scroll down to the AT-command block.
4. Enter AT+CMGD=1.4 and press Send AT Command.

This command removes all SMS messages from SIM-If you only want to erase certain messages, use them:

• 🔢 AT+CMGD=1 – Deletes the first message in memory.
• 🔢 AT+CMGD=1.2 – only deletes the text messages read.
• 🔢 AT+CMGL="ALL" — Shows a list of all SMS messages (check which messages are stored before deleting).

⚠️ Note: Some Xiaomi Redmi firmware (especially Chinese ones) may have their engineering menu blocked.If nothing happens after you enter the code, try using the app. MTK Engineering Mode from Google Play (MediaTek-based devices only).

Method 3: Remove via the SIM Toolkit application

Many operators (for example, MTS, Beeline, Tele2) provide their own application SIM Toolkit, where you can manage messages on SIM-This is a good method if the previous ones didn't work.

How to delete SMS via SIM Toolkit:

1. Find the SIM Toolkit icon on the home screen or in the application menu (may be called Operator Services or My MTS depending on the provider).
2. Select the Messages or SMS section.
3. Find Message Management or SIM Memory option.
4. Select unnecessary SMS and click Remove.

If the SIM Toolkit doesn’t have a removal feature, try updating the app via Google Play or reinstall it. At some rates, operators restrict access to this menu – in which case contact support.

Method 4: Third-party management applications SIM-card

If the standard methods didn't work, you can use specialized tools from Google Play, and we tested a few apps and selected the most reliable ones:

• 📲 SIM Card Messages – a simple tool to view and delete SMS messages SIM. Supports Xiaomi Redmi on the MIUI 12–14.
• 📲 SMS Backup & Restore – allows you to export SMS to a file and then selectively delete it from the file. SIM.
• 📲 MTK Engineering Mode – for devices running a MediaTek processor (e.g. Redmi) 9/10/Note 11).

Instructions for SIM Card Messages:

1. Install the app from Google Play.
2. Open it and provide access to messages and SIM-map.
3. Select the SIM Messages tab.
4. Check the unneeded SMS and click Delete.
5. Confirm the action (it may be necessary to enter) PIN-code SIM).

⚠️ Attention: Some applications (e.g, SMS Cleaner) promise to “optimize” SMS, but actually just clear the cache of the phone without affecting the SIM. Before installing, read reviews and check permissions!

Standard annex “Messages”

Engineering menu (#4636###)

SIM Toolkit from the operator

Third-party annexes

Never deleted a SMS with a SIM.

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Method 5: Complete reset SIM-maps (extreme method)

If none of these methods helped, the text message SIM They occupy critical space and can be completely reset. SIM-This is a radical method that will delete all data (including contacts and operator settings), but return the SIM to a “clean” state.

How to drop SIM-map:

1. Go to Settings. → SIM-maps and mobile networks.
2. Choose yours. SIM-Map and click Additional (or Settings) SIM).
3. Find the Reset option. SIM-Maps or Restore factory settings SIM.
4. Confirm the action (entry will be required) PUK-if SIM blocked).

If there is no such option in the settings, contact the operator with a request to re-release SIM-It's free and it takes 5-10 minutes in the phone. SIM It will be empty, but with the number and rate.

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Before resetting your SIM, export your contacts to your phone memory or Google account! To do this, go to Contacts → Settings → Import/Export and select Export to your device.

What if the SMS is deleted, but reappeared after the reboot?

This is a well-known MIUI bug that occurs on the Xiaomi Redmi Note 10/11 and some other models, the reason is caching an SMS by the operator or the malfunction of the Telephony Provider module.

• 🔄 Cache Clearing: Go to Settings → Annexes → Application management. Find Messages and press Storage. → Clear the cache. Repeat for Telephony Provider and SIM Toolkit.
• 📵 Disable Autosynchronization: Go to Settings → Accounts. → Google → Synchronize your account and disable SMS.
• 🛠️ Resetting network settings: In Settings → SIM-maps and mobile networks → Resetting network settings (does not affect personal data).