How to insert a card into a Xiaomi phone: SIM, MicroSD and eSIM

Xiaomi smartphone owners often face the need to install SIM-A card, microSD card or virtual eSIM. Despite its apparent simplicity, the process has nuances, from the type of tray (single/hybrid) to properly trimming the nano-SIM. Installation errors can lead to no network, damage to contacts or even locking the slot.

In this article, we’ll look at all the ways you can install cards on Xiaomi phones, from budget Redmis to flagship Mis and POCOs. You’ll learn how to determine the type of tray in your model, what tools you’ll need, and how to avoid common errors. And for owners of eSIM-enabled devices, we’ll give you a step-by-step activation instruction without a physical card.

Types of cards and trays in Xiaomi smartphones

Before installing the card, it is important to understand what type of tray is used in your Xiaomi.

  • πŸ“± Single tray - only for nano-SIM (found in older models, for example, Redmi) 4A).
  • πŸ”„ Hybrid tray - nano-SIM + nano-SIM or nano-SIM + MicroSD (commonly available in Redmi Note 10, POCO X3).
  • πŸ“² Triple tray - two nano-SIMs + MicroSD (in flagships, for example, Xiaomi 13 Pro).

To find out the type of tray of your model, check the specifications on the official Xiaomi website or look at the tray itself - it usually has pictograms with supported card types. SIM-The card and memory card is a hybrid slot.

πŸ“Š What type of tray in your Xiaomi?
Single (SIM only)
Hybrid (SIM or MicroSD)
Triple (2 SIM + MicroSD)
I don't know.

Important! You can't use two in hybrid trays. SIM-I'll have to choose between the two cards and the memory card. SIM, Except for models with a separate slot for microSD (for example, Redmi). 9A).

Preparation for installation: what will be needed

Before you insert the card into Xiaomi, prepare everything you need:

  • πŸ”§ Paperclip or tool for tray extraction (usually comes with a phone).
  • πŸ“‡ Nano-SIM (if you have a regular one) SIM, It must be cut or replaced by the operator).
  • πŸ’Ύ MicroSD card (if you plan to expand memory; check the maximum supported volume - Redmi Note 12 has 1 TB, and Redmi has 1 TB) A1 512GB).
  • 🧹 Soft fabric (to clean the tray contacts from dust).

If you SIM-Non-nano-SIM card, don't try to cut it yourself, you better go to the communications salon. Incorrect cropping can damage contacts or make the card unreadable. A1 or A2 fast-paced.

πŸ’‘

Before installing the card, turn off the phone - this will prevent possible failures in the communication module.

Step-by-step instruction: how to insert SIM-map

Installation SIM-Xiaomi cards take less than a minute if you follow the algorithm:

  1. Turn off your phone (optional, but recommended for safety).
  2. Find a tray for SIM-maps -- usually on the top or side of the device. POCO tray may be on the bottom.
  3. Insert the paperclip into the tray hole and press slightly until it is pushed out.
  4. Place the nano-SIM in the appropriate slot with the gold pins down. If the tray is hybrid, select the priority: second SIM or MicroSD.
  5. Carefully insert the tray back before the click. Make sure it sits flat - skews can damage the contacts.
  6. Turn on your phone and wait for the network to be determined. If there's no signal, restart the device or check the installation is correct.

In Xiaomi models with support 5G (for example, Xiaomi 12T) SIM-The card must be installed in the slot SIM1 It's a good way to get high-speed Internet, if you're using two. SIM-The cards, one of them will work. 4G.

β˜‘οΈ Pre-installing check SIM

Done: 0 / 4

Installation of a microSD memory card

If your Xiaomi supports memory cards, installing them is similar to SIM, but there are a few key points:

  • πŸ” Check the maximum volume supported. For example, the Redmi Note 11 runs up to 1 TB of MicroSD, and the Redmi runs up to 1 TB. 8A β€” up to 256GB.
  • 🚫 Not all applications can be migrated to MicroSD, system programs and some games (for example, PUBG Mobile may not work from the card.
  • ⚑ To use MicroSD as internal memory, it will have to be formatted (data will be deleted!).

After installation of the memory card:

  1. Go to Settings. β†’ Memory.
  2. Select SD Card and click Format as internal memory (if you need to expand memory for applications).
  3. Confirm the action – once formatted, the card will not be used on other devices without re-formatting.

Warning: If you remove a MicroSD formatted as internal memory, the applications on it will stop working until it is re-installed.

ESIM Activation in Xiaomi: A Step-by-Step Guide

Xiaomi models starting with Xiaomi 12 and POCO F4 Support eSIM – Virtual SIM-A card that you don't have to physically insert to activate it:

  1. Make sure your operator supports eSIM (in Russia it is MTS, Beeline, MegaFon, Tele2).
  2. Get it. QR-code or activation data from the operator (usually sent by email or in your personal account).
  3. Go to Settings. β†’ SIM-maps and mobile networks β†’ Add a mobile network.
  4. Select Download. SIM and scan. QR-code or enter data manually.
  5. Confirm the installation and restart the phone.

eSIM is convenient for travel – you can save multiple profiles (such as Russian and local) and switch between them without replacing physical cards. However, note that not all tariffs support eSIM, and some operators charge for activation.

What to do if the eSIM is not activated?
Check if your model supports eSIM (the list is available on Xiaomi's website). QR-The code is intact and scanned correctly. Try resetting the network settings to Settings. β†’ System system β†’ Resetting settings β†’ Resetting Wi-Fi, Mobile Network and Bluetooth.

Frequent mistakes and their solution

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

Problem.Possible causeDecision
The phone can't see. SIM-mapIncorrect installation, damaged contacts, inactive SIMReinstall the card, check contacts, contact the operator
No network after installationSIM is blocked, APN settings are incorrectCheck it out. PIN-code, set up APN manually (data on the operator's website)
MicroSD is not definedIncompatible format, damaged mapFormat the map in FAT32/exFAT, try another card
eSIM is not connected to the networkIncorrect activation data, incompatible tariffCheck the data with the operator, restart the phone

If you have a problem after all the manipulations, try resetting the network settings (Settings β†’ System β†’ Resetting β†’ Resetting the mobile network settings). In extreme cases, you may need to contact the service center - perhaps a slot or antenna module is damaged.

πŸ’‘

Before contacting the service, check the efficiency SIM-cards in another phone – this will help eliminate the problem on the operator’s side.

Tips for caring for tray and cards

To avoid problems with SIM-With cards and microSD in the future, follow simple guidelines:

  • 🧼 Regularly clean the tray of dust with a soft brush or compressed air.
  • 🚫 Do not use metal objects to remove the tray - only a special tool or clip.
  • πŸ”‹ Remove cards only when your phone is turned off (especially MicroSD to avoid data damage).
  • 🌑️ Avoid overheating your phone – high temperatures can damage tray contacts.

If you change often SIM-Cards (e.g., when traveling abroad), consider using an adapter for multiple nano-SIMs.Such adapters allow you to store up to 3-4 cards in a single slot, but make sure they are compatible with your Xiaomi model.

⚠️ Note: Do not use MicroSD as internal memory if you plan to retrieve it frequently, which can lead to data loss and application failures.

Can I insert a regular SIM into Xiaomi without trimming?
No, all modern Xiaomi smartphones support only nano-SIM. If you have a regular or micro-SIM, it should be trimmed (better done in the communication cabin) or replaced with a nano-SIM from the operator.
Why Xiaomi doesn’t see the second one SIM-map?
Possible reasons: Hybrid tray set to work with MicroSD instead of second SIM (Check the settings in the settings β†’ SIM-map). SIM-The card is not activated by the operator, the contacts of the tray or the card itself are damaged.
How to transfer applications to a memory card in Xiaomi?
For this: Format MicroSD as internal memory (Settings β†’ Memory β†’ SD card β†’ Format as internal). Go to Settings β†’ Applications, select the desired application and click Storage β†’ Change β†’ SD card. Note that not all applications support port to the map.
Can I use two eSIMs in Xiaomi?
At the moment (2026) Xiaomi smartphones support only one eSIM at a time. SIM-The card must be physical (nano-SIM). the exception is some flagship models (for example, Xiaomi 14 Ultra), where two eSIMs can work, but this depends on the firmware and region.
What to do if the tray is jammed and not removed?
Don't try to pull it out by force, it can break the mechanism. Try: Use a thicker paper clip or tool, apply a drop of alcohol to the slot of the lubrication tray, contact the service center if the tray is damaged.