Installation SIM-The cards in Xiaomiβs smartphone are a seemingly simple procedure, but even it can cause difficulties for a beginner, especially if we are talking about hybrid slots, where you have to choose between the second one. SIM-We'll look at all the nuances in this article, from map preparation to network verification after installation.
Xiaomi manufacturer uses three types of slots for SIM-Cards: Classic (only) SIM), hybrid (SIM + microSD) and combined (two) SIM + microSD. For example, in the Redmi Note 12 Pro+ The slot supports two nano-SIMs or one nano-SIM. + microSD, and Xiaomi 13 Ultra has only two nano-SIMs with no memory expansion. In 2023-2026, the slot is for the first time. SIM-The card is always located on the left side of the card, except for folding devices (for example, Xiaomi). MIX Fold 3), where it may be on the upper end.
If you've never changed before SIM-map or switch from another brandβs phone (such as Samsung or iPhone), pay attention to the map format.Modern Xiaomi smartphones support only nano-SIM (3FF), And in some regions, it's also eSIM. Old micro-SIMs (2FF) full-size SIM (1FF) You will need to cut or replace the operator.
What are they? SIM-The cards support Xiaomi phones
All Xiaomi smartphones released after 2018 This is done exclusively with nano-SIM (size) 12.3 Γ 8.8 Earlier models (e.g. Redmi) 4X or Mi A1) They might have micro-SIM, but today, they're almost never used:
- π± Nano-SIM format is the standard for all current models (Redmi Note 13, POCO X6, Xiaomi 14 and others.).
- π Hybrid Slots β lets you choose between the second SIM-microSD card or memory card (up to 1 TB) are found in budget and medium-budget series (Redmi, POCO M).
- π eSIM support β available in flagships (Xiaomi) 13T Pro, Xiaomi 14 Ultra) and some models for the global market. Allows you to activate the tariff without a physical card.
- β οΈ Bi-band SIM β some operators (e.g. MTS or Tele2) hand out cards 4G/5G. Make sure yours is yours. SIM Compatible with the next generation of networks.
If you use two of them SIM-Note that in the hybrid slot, priority is given to the first SIM (slot 1. It usually supports higher data rates (e.g, 5G), while the second SIM It can only work on networks. 4G or 3G. Details for a specific model can be specified on the official website of Xiaomi in the section of specifications.
| Xiaomi model | Slot type | Support for eSIM | Max, the volume of microSD |
|---|---|---|---|
| Redmi Note 12 Pro+ | Hybrid (nano-SIM + nano-SIM/microSD) | No. | 1 TB |
| POCO F5 Pro | Hybrid (nano-SIM + nano-SIM/microSD) | No. | 1 TB |
| Xiaomi 13T Pro | Double nano-SIM | Yes. | β |
| Xiaomi 14 Ultra | Double nano-SIM | Yes. | β |
| Redmi A2+ | Hybrid (nano-SIM + microSD) | No. | 512GB |
If your model is not listed in the table, check its specs on the Mi.com website or in the documentation. Please note that in some regions (for example, in India), Xiaomi releases smartphone modifications with additional SIM slots.
Preparation for installation: what will be needed
Before you put it in. SIM-Xiaomi card, prepare everything you need. Here's the checklist:
βοΈ What you need to install SIM-map
If you don't have a tool to remove the tray (it usually comes with your phone), an unbended paper clip or a stationery pin will do, the main thing is that the tip is thin and does not damage the lock mechanism. Do not use needles or sharp objects: they can scratch the case or break the lock.
Check before installation SIM-damage-card:
- π Check if there are any scratches or oxidation on the contacts (the golden part.
- π Make sure the card size is nano-SIM (12.3 Γ 8.8 If you have a micro-SIM or a standard SIM, It will have to be cut or replaced.
- πΆ If the card is new, activate it with the operator (sometimes the first call is required or the first call is required). SMS).
β οΈ Attention: If you cut micro-SIM to nano-SIM yourself, use a template or a special cutter. Incorrect cropping can damage the chip and the card will stop working.
Also check if your Xiaomi supports two. SIM-In hybrid slots when installing the second SIM The microSD card automatically shuts down. 10C can be used either of two SIM, one-way SIM + microSD.
Step-by-step instruction: how to insert SIM-map
Installation process SIM-The cards are the same for most Xiaomi models, but there are nuances depending on the type of slot:
- Turn off the phone. Although many users miss this step, it is recommended to turn off the power to avoid damaging contacts or crashing the communication module.Push and hold the power button, then select Turn off.
- Find a slot for SIM-In most models, it's on the left side of the map: π± Xiaomi MIX Fold 3 - slot on the upper end. π± POCO F4 GT β slot on the right end (near the volume buttons). π± Black Shark 5 Pro β the slot is hidden under the removable cover.
Remove the tray for SIM-map.
Insert the paperclip into a small hole next to the slot and press before clicking. The tray will extend a few millimeters - carefully pull it out with your fingers. Don't put too much effort: if the tray doesn't come out, check if it's locked (for example, in some models you need to remove the case first).
Install. SIM-card-tray.
Put the nano-SIM in the appropriate groove with the contacts down. If the tray supports two SIMs, note the marking:
- π’ SIM 1 - The main slot (usually supports) 5G).
- π’ SIM 2 - Additional slot (can only work in the 4G).
- π· microSD β a memory card slot (if available).
- Put the tray back in. Carefully insert the tray into the slot to the end. Make sure it comes in straight - skewing can cause damage to the contacts. In some models (for example, Xiaomi 12S Ultra), the tray locks with a characteristic click.
- Turn on your phone and set up the network. Once turned on, Xiaomi will automatically determine SIM-If this does not happen, go to Settings. β SIM-maps and mobile networks and select the operator manually. PUK-code (if the card is blocked).
After installation SIM-The card is not determined, try it:
- π Reboot the phone.
- πΆ Manually select the operator network in the settings.
- π§ Check if your contacts are contaminated SIM-card (wipe them with a wipe or wipe soaked in alcohol).
What to do if the tray is stuck in the phone?
Features of the eSIM installation in Xiaomi
Virtual SIM-The eSIM card is available in Xiaomi flagship models such as the Xiaomi 13 Pro, Xiaomi 14 or Xiaomi. POCO F5 Pro (for the global market) The advantages of eSIM:
- π No need for a physical card - the tariff is activated through QR-code.
- π Quick switching between operators (for example, for travel abroad).
- π± Freed slot for the second physical SIM memory-card.
To install eSIM on Xiaomi, follow the following steps:
- Get it. QR-activation code of its operator (for example, MegaFon, Beeline or Yota).
- Go to Settings. β SIM-maps and mobile networks β Add a mobile fare.
- Select Scan. QR-eSIM code and point the camera to the code.
- Confirm activation and restart the phone.
If QR-code is not scanned, try entering data manually (click Enter manually and specify SM-DP+ Address and Activation Code provided by the operator).
β οΈ Note: Not all operators in Russia support eSIM for individuals; at the time of 2026, the service is officially provided by MegaFon (for corporate customers), Tele2 (In test mode) and some virtual operators (e.g. Tinkoff Mobile). Before buying Xiaomi with eSIM, check with the operator the possibility of connecting.
If the eSIM does not catch the network after activation, check:
- πΆ Settings APN (Access points can be requested from the operator or found on its website.
- π Network Mode: Go to Settings β SIM-maps and mobile networks β Name eSIM β Network type and select 4G/5G (recommended).
- π± Software Update: Sometimes the latest version is required to work correctly. MIUI.
Frequent Mistakes and How to Avoid Them
Even with the seemingly simple procedure, users often face problems when installing the device. SIM-Xiaomi maps. Here are the most common mistakes and ways to fix them:
| Problem. | Possible cause | Decision |
|---|---|---|
| The phone can't see. SIM-map | Card is inactivated or damaged | Check the activation from the operator, wipe the contacts, try another SIM |
| No network after installation | Incorrect APN settings or network mode | Update. APN manually or reset network settings in Settings β SIM-map β Reset |
| The tray is not fixed. | SIM-card is set curved or incorrectly sized | Check the correct installation, if necessary, trim the card to nano-SIM |
| The phone overheats after installing the SIM | Conflict of the two SIM-maps or incompatibility with the network 5G | Turn off one of the SIMs or change the network mode to 4G |
After installation SIM-Xiaomi cards have started to slow down or discharge quickly, the reason may be a constant search network. This often happens with a weak signal or if the card does not support the next generation networks (for example, the card does not support the new generation of networks, 5G). To check:
- Go to Settings. β SIM-maps and mobile networks.
- Choose yours. SIM-map and look at the network indicator (for example, LTE or 5G).
- If the network is unstable, turn on the option of 4G Only or 3G Only.
Another common problem is the conflict between the two. SIM-If one of them doesn't catch the net, try it:
- π Change the cards (move them from the map) SIM 1st SIM 2).
- π΅ Turn off one of them. SIM In the settings and check the second.
- π‘ Manually select a network for each SIM (for example, leave one 4G, other β 3G).
π‘
If the phone can't see SIM-card after falling or getting moisture, do not try to solve the problem yourself. This may indicate damage to the communication module - contact the service center.
How to remove or replace SIM-map
If you need to remove or replace SIM-card (e.g. when changing operator or traveling abroad), follow the same steps as when installing, but in reverse order:
- Turn off your phone. This will prevent damage to your contacts.
- Remove the tray with a paper clip.
- Delete. SIM-If the card is jammed, don't pull it by force, just gently put it with a nail or a plastic card.
- Clean the tray from dust or debris (you can use a brush or a balloon with compressed air).
- Install a new SIM (if needed) and put the tray back in place.
If you do not use the second one temporarily SIM-If you have a card, but you plan to return it later, keep it in a dry place that is protected from static electricity (for example, in the original holder or antistatic bag). SIM-card near magnets (such as the refrigerator) β this can damage the chip.
β οΈ Note: When removing the tray in water-protected phones (Xiaomi 13 Ultra, POCO F5 Pro) check the condition of the sealing gum. If it is damaged or missing, the phone will lose water resistance.
If you are selling or transferring your phone to another person, it is recommended that:
- π Extract everything SIM-microSD cards.
- π§Ή Reset the settings to factory (Settings) β The phone. β Resetting settings).
- π± Unlock the Mi Account (if tied).
Selection advice SIM-maps for Xiaomi
Not all. SIM-Maps work equally well with Xiaomi phones. Here's what to look for when choosing a new one:
- π Support 5G: If your Xiaomi is compatible with fifth generation networks (e.g. Redmi Note 12 Pro)+ 5G), make sure that SIM-The card also supports 5G. Check with the operator β sometimes you need to replace the old card.
- π Bi-band SIM: Some operators (such as MTS) offer multi-frequency cards, which is useful if you travel frequently or live in an area with unstable coverage.
- π‘ Roaming: If you are often abroad, choose SIM with favorable roaming rates or a support eSIM (so as not to change the physical card).
- π‘οΈ Protection against cloning: In cheap salons, communications can offer "grayΒ» SIM-Buy cards only from official operators to avoid lock problems.
If you use two of them SIM-maps, take into account the following nuances:
- π Default calls and SMS come on SIM 1. To change this, go to Settings β SIM-map β Default calls.
- π You can choose any one for the Internet. SIM, If one of the cards does not support 4G/5G, speed will be limited.
- π Two active SIM-Slightly increases battery consumption (5-10%) as the phone scans two networks.
For hybrid slot models (like the Redmi Note 11 Pro), microSD is given priority if installed. SIM-The card is the same as the memory card. SIM and additional storage, consider models with a separate microSD slot (e.g., microSD slot, POCO M5s).