How to insert a SIM card in Xiaomi 11T: tray, size, activation of the network

Introduction

Xiaomi Smartphone 11T — popular model with two support SIM-But the process of installing these cards can be a little bit of a novice question, and unlike older devices with retractable covers, this one uses a tray mechanism that requires care, and this article will help you avoid the typical mistakes of choosing the right size of the SIM card to activating the mobile network.

Features of Xiaomi 11T — Hybrid slots that allow you to install either two nanos-SIM, one-way SIM + We'll go through both options in detail, and we'll also tell you what to do if the phone doesn't see the SIM after installation: 11T Pro, 11T Lite and the basic version.

What SIM card supports Xiaomi 11T

Xiaomi 11T model works exclusively with sim-cards of the format nano-SIM (4FF). This is the smallest standard: 12.3 × 8.8 × 0.67 mm. If you have a sim of a different size (micro or standard), it will have to be cropped or replaced in the cabin of the operator. Using adapters or improperly cropped cards can damage the slot contacts.

Check the size of your SIM card on the table:

Important: if you plan to use a microSD, one of the SIM cards will occupy a common slot, in which case the second SIM is installed in a separate slot (if you have one in your modification), specify the configuration of the slots in the characteristics of your model.

Where is the SIM card slot in Xiaomi 11T

The Xiaomi 11T SIM card tray is located on the left side of the case, easily identified by the small needle tool hole. On some versions (such as the 11T Pro), the slot can be on the right — check this from your model’s photo.

In order not to confuse the slot with other connectors, pay attention to its features:

• 🔹 It has a metal edging and a notch under the paper clip
• 🔹 Located above the volume buttons
• 🔹 Inscription SIM or a SIM card pictogram next to you
• 🔹 Not to be confused with a connector. USB-C (he's down)

If you can’t find the slot, watch the official video from Xiaomi or use a flashlight – the hole to extract the tray is clearly visible in side lighting.

Step-by-step: how to insert a SIM card

Before installing the SIM card, turn off your phone to avoid damaging your contacts.

1. Find a metal clip in the delivery kit (or use an unbended stationery) and insert it into the slot hole before you click, the tray will extend 2-3 mm.
2. Carefully pull the tray over and remove it completely. Don't make any effort -- if it doesn't come out, check if the mechanism has jammed.
3. Put the SIM card(s) in the tray with the contacts down, matching the notch on the card with the protrusion in the slot: 📱 SIM 1 - top connector (main simka) 📱 SIM 2 / microSD - bottom connector (second SIM card or memory card)

Make sure the cards sit tightly in the slots and don't protrude beyond the edges of the tray. insert the tray back into the slot before the click.

Turn on the phone and wait for the network to activate (it can take up to 2 minutes).

The tray is clean, no dust and no debris |

SIM card trimmed to nano-SIM|

SIM card contacts not scratched |

The phone is turned off before installation-->

If you have a "No Network" or "No SIM card supported" error after you turn on, remove the tray and check if the installation is correct. A common error is an inverted SIM or dust entering the contacts.

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If the tray is not fixed in the slot, try to press it slightly with your finger until the characteristic click. Do not use force - this can bend the metal guides.

Frequent problems and their solutions

Even with the right SIM card installation, there can be failures. Consider typical situations and ways to fix them:

⚠️ Note: If after installing the SIM card, the phone stopped turning on or gives an error "SIM-"card damaged," immediately remove it and check contacts for scratches. Using a damaged SIM can disable the communications module.

If problems persist, try inserting the SIM card into another phone to check if it works. Also make sure that the network settings (Settings) → SIM-Maps and mobile networks) the right SIM for calls and mobile Internet.

How to activate mobile internet and calls

After installing the SIM card, you need to configure the network settings.

1. Go to Settings. → SIM-maps and mobile networks.
2. Select the SIM card you want to set up the Internet for.
3. Activate options: 📞 Calls for voice communication 🌐 Mobile data – for access to the Internet 📶 Roaming – if you are abroad

If the internet is not working, check it out. APN (These are usually set up automatically, but sometimes manual input is required. APN You can find your operator’s website.

To speed up the settings of mobile Internet send USSD-request:

• 📱 MTS: *111*0887#
• 📱 Beeline: *110*181#
• 📱 MegaFon: *105*00#
• 📱 Television2: *155*1#

⚠️ Warning: If the phone discharges quickly after setting up the Internet, check if the mode is activated 4G+ In the background. Turn it off in Settings. → SIM-map → Preferred type of network → 4G/3G/2G (motor-car).

Can I use two SIM cards and a memory card at the same time?

In Xiaomi 11T, the slot for the second SIM card is combined with the microSD connector, which means that you can choose only one of the options:

• 📱 Two SIM cards (without a memory card)
• 📱 One SIM card. + microSD (up to 1 TB)

If you need both SIMs and additional storage, consider alternatives:

• 🔄 Use cloud services (Mi Cloud, Google Drive) instead of a physical memory card.
• 🔄 Buy OTG-adapter to connect the flash drive through USB-C.
• 🔄 Transfer data to a memory card and then install a second SIM.

Note that when you use microSD as internal memory (format as internal), you can't retrieve it without losing data.

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Xiaomi 11T does not allow you to use two SIM cards and a memory card at the same time. The priority depends on your tasks: if you want to use two numbers, give up microSD, if you need more memory, use one SIM.

FAQ: Answers to Frequent Questions