Xiaomi Redmi 4A β One of the brand's most popular budget smartphones, released in 2016, and despite its age, the device is still in demand today thanks to its affordable price, reliability and ability to work with multiple devices. SIM-But the question is, how many SIMs does this model support, and how do you install them properly so you don't lose functionality?
In this article, we will discuss the configuration of the slot for SIM-map 4A, We will talk about compatibility with microSD cards, and also provide step-by-step instructions for configuring two sims. Particular attention will be paid to the unique feature of this model - a hybrid slot that limits the simultaneous use of two sims. SIM-memory-card.
If you are planning to buy Redmi 4A Or you've had problems with sims, and this material will help you understand all the nuances, and we'll also answer some of the common questions: can you expand your memory if you use two? SIM-How to activate mobile Internet on both SIM cards.
Technical characteristics of the slot SIM-map 4A
Xiaomi Redmi 4A fitted with a hybrid slot SIM-Cards, which means you can choose one of two options:
- π± Two nano-SIM cards (without a memory card)
- π± One nano-SIM + one MicroSD up to 256 GB)
This solution allowed the manufacturer to save space inside the case, but it created limitations for users. SIM-cards and memory card is impossible - you will have to choose between the expansion of memory or the second SIM card.
The slot is located on the right end of the smartphone and opens with a special key (included). If the key is lost, you can use a clip or needle, but you need to do this carefully so as not to damage the mechanism.
What kind of guy. SIM-Cards are supported by Redmi 4A?
Redmi 4A It works exclusively with nano-SIM (format) 4FF). If you SIM-A different size card (mini-SIM or micro-SIM) that will have to be cropped or replaced in the operator's cabin, and adapters are not recommended, which can lead to poor contact and loss of network.
Here are the main formats SIM-Compatibility with Redmi cards and their compatibility with Redmi 4A:
| Type SIM-map | Size | Compatible with Redmi 4A |
|---|---|---|
| Standard SIM (mini-SIM) | 25Γ15 mm | β Not suitable. |
| Micro-SIM | 15Γ12 mm | β Not suitable. |
| Nano-SIM | 12.3Γ8.8 mm | β It fits. |
| eSIM | Virtual | β Not supported |
If you are not sure about your size SIM-The cards, which you can compare to the template that is often attached to new smartphones, and many operators (for example, MTS, Beeline, MegaFon) provide combined SIM-cards that can be easily broken to the desired size.
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Before pruning. SIM-card make a backup of contacts - if the pruning is unsuccessful, the card may fail.
Step-by-step instructions: how to install SIM-maps 4A
Installation SIM-map 4A no more 2-3 You need to be careful, but follow this instruction to avoid errors:
- Turn off the smartphone β this will prevent possible failures in the recognition of sims.
- Find a tray for SIM-cards on the right end of the device (near the power button).
- Insert the key to extract (or clip) into a small hole and press slightly until the tray is pushed out.
- Place it. SIM-card(s: π± For one. SIM: Put it in the slot SIM 1 (upper). π± For two. SIM: fill in both slots (SIM 1 and SIM 2). π± For SIM + MicroSD: Install SIM into SIM 1, and the memory card in SIM 2.
Carefully insert the tray back before the click.
Turn on your smartphone and wait for the recognition of the SIMs (can take up to 1 minute).
βοΈ Pre-installing check SIM-map
If one of the sims is not determined after installation, try:
- π Reboot your smartphone.
- π Remove and re-insert SIM-map.
- π Check if the card is properly cropped (no barbs should be provided).
- π Contact the operator to check the activity SIM-map.
What if the tray is jammed?
Set-up of two SIM-Maps: Priorities and Mobile Internet
After installing two SIM-map 4A You have to set them up. By default, the smartphone will use them. SIM 1 for calls and the internet, but that can be changed.
To set priorities:
- Go to Settings. β SIM-maps and mobile networks.
- Select Priority SIM-Call cards and specify which SIM to use by default.
- For mobile Internet, select the Mobile Internet and activate the desired one. SIM-map.
- In the Access Points (APN) section, check the Internet settings for each operator (usually the settings come automatically to SMS).
Important nuances:
- πΆ 4G supported only by SIM 1 β The second sim will work in the mode 2G/3G.
- π When you're calling on one. SIM-The second card will not be available (limitation of hardware).
- π If the mobile Internet is not working, check whether the data transfer for the selected data is enabled. SIM-card.
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At Redmi. 4A 4G/LTE It only works first. SIM-map (SIM 1). The second SIM will be limited to networks. 2G or 3G.
Can you use a microSD with two? SIM-map?
As mentioned, Redmi 4A has a hybrid slot, which means:
- π« Two. SIM-map + MicroSD β not supported.
- β One. SIM + MicroSD β Supported by.
- β Two. SIM-MicroSD-free cards are supported.
If you need to have both SIM and extended memory, you should choose:
- Use cloud services (Google Drive, Mi Cloud) to store files.
- Purchase OTG-adapter for connecting a flash drive (but it is inconvenient for constant use).
- Replace your smartphone with a separate MicroSD slot (e.g. Redmi 5A or Redmi Note 4).
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If you often switch between the two SIM-With cards and memory card, buy an adapter for a quick change of tray - this will save time.
The amount of internal memory in Redmi 4A form 16 GB (of which the user is available) ~10-12 If that is not enough, and the second SIM-The card is not so important, the best solution is to install a microSD on the 64 or 128 GB.
Frequent problems with SIM-maps at Redmi 4A and their decisions
Redmi users 4A Sometimes they have problems working with SIM-Let's look at the most common cases and how to fix them.
Problem 1: The smartphone canβt see SIM-map
- πΉ Check if the card is installed correctly (the chip must be facing downwards).
- πΉ Clear the contacts. SIM-cards and slots with dry soft fabric.
- πΉ Try another one. SIM-card to eliminate the fault of the card itself.
- πΉ Update the firmware of the smartphone β sometimes software bugs interfere with the correct operation of sims.
Problem 2: The mobile Internet is not working on one of the SIM-map
- πΉ Make sure that for this SIM-maps enabled data transfer in settings.
- πΉ Check the balance and activity of the service "Mobile Internet" with the operator.
- πΉ Manually add it. APN (access point β settings can be found on the operatorβs website.
- πΉ Reboot your smartphone β sometimes it helps to reset your network settings.
Problem 3: The smartphone is constantly switching between SIM-map
- πΉ Turn off automatic network selection in settings SIM-map.
- πΉ Prioritize calls and the internet manually.
- πΉ Check if third-party management apps are installed SIM-Maps (they may conflict with system settings).
How to reset network settings?
Redmi 4A Comparison with Other Xiaomi SIM-Supported Models
If you choose between Redmi 4A And other Xiaomi smartphones, it is important to consider the configuration of slots for SIM-Below is a comparison with popular models:
| Model | Slot type | Max Max. SIM-map | Support for MicroSD Support | 4G on both SIMs |
|---|---|---|---|---|
| Redmi 4A | Hybrid | 2 | Just instead of the SIM 2. | β (only SIM 1) |
| Redmi 5A | Hybrid | 2 | Just instead of the SIM 2. | β (only SIM 1) |
| Redmi Note 4 | Hybrid | 2 | Just instead of the SIM 2. | β (firmware) |
| Redmi Note 5 | Separate slot | 2 | β (additionally) | β |
| Poco X3 | Hybrid | 2 | Just instead of the SIM 2. | β |
As you can see from the table, Redmi 4A It is less than newer models in flexibility of use. SIM-If you're looking at the possibility of using two Sims and a MicroSD at the same time, consider models with separate slots, such as the Redmi Note 5 or Redmi 9.
But if you need a second one. SIM-card only for calls, and the main emphasis is on one SIM with the Internet, the Redmi 4A It is a great budget option.